Ruby Crystals

We specialize in natural red corundums - just as they were found in the earth!
Ruby Crystals: natural unheated Ruby Crystals!

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Ruby Crystals
(natural unheated & untreated ruby crystals)

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Ruby Crystal (polished-end)


Code: rbym385
This genuine ruby crystal weighs 63.75 carats
Ruby Crystal Dimensions: 1.2" long x 0.6" x 0.5"
(30mm x 15mm x 13mm)
Mined at Karnataka, India
Price: $44.62
This natural ruby crystal weighs 63.75 It has 100% natural purplish-red color with tapering hexagonal form. It is unheated and untreated! This natural ruby crystal has been polished on one end to facilitate its use as a massage tool as well as to reveal the interior's beautiful purplish-red natural color.

Ruby Crystal (polished-end)


Code: rbym386
This genuine ruby crystal weighs 96.5 carats
Ruby Crystal Dimensions: 1.2" long x 0.75" x 0.6"
(31mm x 19mm x 14.5mm)
Mined at Karnataka, India
Price: $57.90
This natural ruby crystal weighs 96.5 carats. It has 100% natural purplish-red color with hexagonal form. It is unheated and untreated. This natural ruby crystal has been polished on one end to facilitate its use as a massage tool as well as to reveal the interior's beautiful purplish-red natural color.

Ruby Crystal (polished-end)


Code: rbym387
This genuine ruby crystal weighs 206.6 carats
Ruby Crystal Dimensions: 1.5" long x 1" x 0.8"
(39mm x 26mm x 21mm)
Mined at Karnataka, India
Price: $115.70
This natural ruby crystal weighs 206.6 carats. It has 100% natural purplish-red color with hexagonal form. It is unheated and untreated. This natural ruby crystal has been polished on one end to facilitate its use as a massage tool as well as to reveal the interior's beautiful purplish-red natural color. See an opposite side view of this natural ruby crystal.

Giant Ruby Crystal (polished-end)


Code: rbym294
This genuine ruby crystal weighs 1160 grams (5800 carats)
4.4" x 3.4" x 3.3"
(111mm x 87mm x 84mm)
Mined at Karnataka, India
Price: $2125.00
This rare size natural ruby crystal weighs over 2.5 pounds! It has 100% natural purplish-red color with tapering hexagonal form. This giant ruby crystal is unheated and untreated! There is a small amount of mica schist matrix attached on some surfaces. This ex-large size natural ruby crystal has been polished on one end to facilitate its use as a massage tool as well as to reveal the interior's beautiful purplish-red color. See a polished end view of this giant ruby crystal. This rare size ruby crystal also shows a very faint six ray star when viewed under direct sunlight!

405 carat Ruby Crystal


Code: rbym360_ruby
Natural color ruby crystal weighs 81 grams (405 carats)
Ruby Crystal Dimensions: 1.8" x 1.5" x 1.2"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $88.00
This natural unheated ruby crystal has purplish-red natural color with tapering hexagonal form. It is opaque to translucent. See also a side view of this ruby crystal specimen.

Natural Ruby Crystal, 153.4 carats

This unique item is sold.
Code: rbym376
Natural color ruby crystal weighs 30.68 grams (153.4 carats)
Ruby Crystal Dimensions: 1.4" x 0.8" x 0.7"
(37mm x 21mm x 18mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $99.71
This is a natural unheated ruby crystal with rich purplish-red natural color. It is has all natural surfaces with hexagonal prismatic crystal form and cabochon gem grade translucency.

Natural Ruby Crystal, 157.85 carats

This unique item is sold.
Code: rbym373
Natural color ruby crystal weighs 31.57 grams (157.85 carats)
Ruby Crystal Dimensions: 1.4" x 0.8" x 0.7"
(36.5mm x 21.5mm x 18mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $104.60
This is a natural unheated ruby crystal with rich purplish-red natural color. It is has all natural surfaces with hexagonal prismatic crystal form and cabochon gem grade translucency.

Tabular Ruby Crystal, 161.6 carats

This unique item is sold.
Code: rbym365
Natural color ruby crystal weighs 32.32 grams (161.6 carats)
Ruby Crystal Dimensions: 1.75" x 1.5" x 0.6"
(44mm x 38mm x 15.5mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $105.04
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and hexagonal tabular crystal form. See an opposite side view of this natural color tabular ruby crystal specimen.

Tabular Ruby Crystal, 200.95 carats

This unique item is sold.
Code: rbym377
Natural color ruby crystal weighs 40.19 grams (200.95 carats)
Ruby Crystal Dimensions: 1.3" x 1.1" x 0.8"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $130.62
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal tabular crystal form and cabochon gem grade translucency.

Ruby Crystal, 201.6 carats

This unique item is sold.
Code: rbym378
Natural color ruby crystal weighs 40.32 grams (201.6 carats)
Ruby Crystal Dimensions: 1.2" x 1.1" x 0.9"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $131.04
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal prismatic crystal form and cabochon gem grade translucency. See also an opposite side view of this natural ruby crystal.

Ruby Crystal, 224 carats

This unique item is sold.
Code: rbym379
Natural color ruby crystal weighs 44.8 grams (224 carats)
Ruby Crystal Dimensions: 1.4" x 1" x 0.85"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $145.60
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal prismatic crystal form and cabochon gem grade translucency. See also an opposite side view of this natural ruby crystal.

Tabular Ruby Crystal, 226.25 carats

This unique item is sold.
Code: rbym380
Natural color ruby crystal weighs 45.25 grams (226.25 carats)
Ruby Crystal Dimensions: 1.6" x 1.4" x 0.7"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $147.06
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal tabular crystal form and cabochon gem grade translucency. See also another view of this natural natural color ruby crystal.

Natural Ruby Crystal, 241.3 carats

This unique item is sold.
Code: rbym366
Natural color ruby crystal weighs 48.26 grams (241.3 carats)
Ruby Crystal Dimensions: 1.1" x 1.1" x 1"
(28.5mm x 28mm x 25mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $156.85
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and slightly tapering hexagonal prismatic crystal form.

Tabular Ruby Crystal, 245 carats

This unique item is sold.
Code: rbym382
Natural color ruby crystal weighs 49.0 grams (245 carats)
Ruby Crystal Dimensions: 1.4" x 1" x 0.8"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $198.00
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal tabular crystal form that tapers towards each end in a squat barrel-like shape. This unique ruby crystal has cabochon gem grade translucency. See also an opposite side view of this genuine ruby crystal.

Tabular Ruby Crystal, 269 carats

This unique item is sold.
Code: rbym381
Natural color ruby crystal weighs 53.8 grams (269 carats)
Ruby Crystal Dimensions: 1.5" x 1.2" x 0.75"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $174.50
This is a natural unheated ruby crystal with deep purplish-red natural color. It has all natural surfaces with hexagonal tabular crystal form and cabochon gem grade translucency. This unique ruby crystal has some interesting natural triangular surface features. See a close-up view of these natural triangular features on this natural ruby crystal.

Natural Ruby Crystal, 304.5 carats

This unique item is sold.
Code: rbym367
Natural color ruby crystal weighs 60.9 grams (304.5 carats)
Ruby Crystal Dimensions: 1.3" x 1.1" x 1"
(34mm x 29mm x 25.5mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $179.65
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and slightly tapering hexagonal prismatic crystal form.

Tabular Ruby Crystal, 346 carats


Code: rbym352
Natural color ruby crystal weighs 69.2 grams (346 carats)
Ruby Crystal Dimensions: 1.75" x 1.5" x 0.6"
(44mm x 38mm x 15.5mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $204.50
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and hexagonal tabular crystal form.

Natural Ruby Crystal, 387.7 carats


Code: rbym368
Natural color ruby crystal weighs 77.54 grams (387.7 carats)
Ruby Crystal Dimensions: 1.5" x 1.4" x 1.1"
(37mm x 34mm x 28mm)
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $228.74
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and tapering hexagonal prismatic crystal form. See also an opposite side view of this natural ruby crystal.

599 carat Ruby Crystal Specimen


Code: rbym359_ruby
Natural color ruby crystal specimen weighs 119.8 grams (599 carats)
Ruby Mineral Specimen Dimensions: 1.8" x 1.5" x 1.2"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $299.50
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency. It is a partially terminated crystal with a small amount of mica on some surfaces. See a side view of this ruby crystal specimen.

Ruby Crystal, 676 carats

This unique item is sold.
Code: rbym343
Genuine ruby crystal weighs 135.2 grams (676 carats)
Ruby Crystal Dimensions: 1.9" x 1.45" x 1.3"
(48mm x 37mm x 32mm)
Mined at Karnataka, India
Price: $398.84
This natural unheated ruby crystal has rich purplish-red natural color and superior cabochon gem grade translucency and tabular hexagonal form. See a side view of this untreated ruby crystal. See also an opposite side view of this unheated ruby crystal.

3.25 inch Natural Ruby Crystal


Code: rbym326
Genuine ruby crystal weighs 253.6 grams (1268 carats)
Ruby Crystal Dimensions: 3.25" x 2" x 1.5"
(83mm x 50mm x 39mm)
Mined at Karnataka, India
Price: $634.00
This natural unheated ruby crystal is 3.25 inches long, and it weighs over 1/2 pound! It has rich purplish-red natural color with cabochon grade translucency and hexagonal form that tapers towards one end. The photo at left was taken under incandescent light.

1774 carat Ruby Crystal


Code: rbym370_ruby
Natural color ruby crystal weighs 354.8 grams (1774 carats)
Ruby Crystal Dimensions: 2.3" x 2.2" x 1.9"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $1064.40
This natural unheated ruby crystal has rich purplish-red natural color with superior cabochon gem grade translucency and hexagonal crystal form that tapers towards each end. See also an opposite side view of this natural ruby crystal.

2415 carat Ruby Crystal


Code: rbym372_ruby
Natural color ruby crystal weighs 483 grams (2415 carats)
Ruby Crystal Dimensions: 3.1" x 2.3" x 2.0"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $1449.00
This natural unheated ruby crystal has rich purplish-red natural color with superior cabochon gem grade translucency and hexagonal crystal form that tapers towards each end. See also an opposite side view of this natural ruby crystal.

2550 carat Ruby Crystal


Code: rbym383_ruby
Natural color ruby crystal weighs 510 grams (2550 carats)
Ruby Crystal Dimensions: 3.2" x 2.6" x 2.2"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $1275.00
This natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and hexagonal crystal form that tapers towards each end. This large ruby crystal was intergrown with other large rubies which left crystal impressions on its back surface. The photo at left is a front view. See a view of the back surface of this large ruby crystal. See a right side view of this large ruby crystal. See also a left side view of this large ruby crystal.

Large Ruby Crystal, 2875 carats!


Code: rbym341
Genuine ruby crystal weighs 575 grams (2875 carats)
Ruby Crystal Dimensions: 3" x 2.4" x 1.8
Mined at Karnataka, India
Price: $1725.00
This natural unheated ruby crystal has rich purplish-red natural color and superior cabochon gem grade translucency with hexagonal prismatic form. This unique ruby crystal is completely natural - just as it was found in the earth! See an opposite side view of this amazing collector quality ruby crystal.

4 inch Ruby Crystal


Code: rbym363_ruby
Natural color ruby crystal weighs 504.6 grams (2523 carats)
Ruby Crystal Dimensions: 4" x 2.2" x 1.8"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $1513.80
This 4 inch long natural unheated ruby crystal has rich purplish-red natural color with cabochon gem grade translucency and hexagonal crystal form that tapers somewhat towards each end. See also an opposite side view of this natural ruby crystal.

12250 carat Natural Ruby!


Code: rbym328
Genuine ruby crystal weighs 2450 grams (5.4 pounds!)
Ruby Crystal Dimensions: 5.5" x 4.3" x 3.0"
Mined at Karnataka, India
Price: $6125.00
This giant size untreated ruby crystal weighs 5.4 pounds! See a view of this large ruby crystal standing upright. This genuine ruby specimen is completely natural and has rich purplish-red natural color with cabochon grade translucency and hexagonal form that tapers towards each end giving this rare size ruby crystal a barrel-like shape. See an end-view photo of this natural large ruby crystal showing the hexagonal form. See also a back-view of this natural giant ruby crystal.

Giant Tabular Ruby Crystal, 4725 carats!


Code: rbym344
Genuine ruby crystal weighs 945 grams (4725 carats)
Ruby Crystal Dimensions: 3.8" x 3.1" x 2.3" tall
Mined at Karnataka, India
Price: $2835.00
This natural unheated ruby crystal weighs over 2 pounds! It has rich purplish-red natural color and cabochon gem grade translucency with tabular hexagonal form. The upper and lower terminations are very good overall condition. This unique ruby crystal is completely natural - just as it was found in the earth! See an opposite side view of this collector quality natural ruby mineral specimen.

Natural Ruby Crystal, 1332.3 carats


Code: rbym369
Natural color ruby crystal weighs 266.46 grams (1332.3 carats)
Ruby Crystal Dimensions: 2.5" x 2" x 1.4"
Genuine ruby crystal mined at Mined at Karnataka, India
Price: $692.80
This natural unheated ruby crystal has purplish-red natural color with cabochon gem grade translucency and tapering hexagonal prismatic crystal form. See also another view of this natural ruby crystal.

Giant Ruby Crystal


Code: rbym345
Genuine ruby crystal weighs 2065 grams (10325 carats)
Ruby Crystal Dimensions: 6.1" x 3.3" x 2.8"
Mined at Karnataka, India
Price: $6875.00
This natural unheated ruby crystal is 6.1 inches long, and it weighs over 4.5 pounds! This rare size ruby crystal actually stands up, see an upright view of this extra large ruby crystal. It has rich purplish-red natural color and superior cabochon gem grade translucency with hexagonal prismatic form that tapers towards each end. This unique ruby crystal is completely natural - just as it was found in the earth! See a view of this collector quality giant ruby crystal on its side. See also another view of this rare size ruby crystal

7 inch Ruby in Zoisite Carved Horse


Code: rbyh102
Handcarved ruby in zoisite carving weighing 1.9 Lbs.
Ruby in Zoisite Carving Dimensions: 7" long x 6.4" tall x 1.3" deep
Mined in Tanzania
Price: $384.25
This sculpture of a horse was handcarved from a single block of natural color ruby in green zoisite rough that was mined in Tanzania. The rubies have purplish-red color under incandescent light. See also a view of the opposite side of this natural ruby in zoisite horse carving.

Ruby in Zoisite Rough Specimen

This unique item is sold.
Code: zoim107
Natural ruby in zoisite rough weighing 2.0 pounds
Ruby Zoisite Specimen Dimensions: 4.7" x 4.5" x 2"
Found at Longido, Tanzania
Price: $132.95
This specimen of natural color ruby in green zoisite rough was mined in Tanzania. The rubies have very rich deep red color, and the zoisite is a beautiful green with black hornblende. There are more rubies exposed on the opposite side. This ruby in zoisite rough makes a nice mineral specimen just as it is, although it could also be used as superior grade lapidary rough.

Ruby in Zoisite Rough, 3.9 pounds

This unique item is sold.
Code: zoisite-rough-103
Natural ruby in zoisite rough weighing 3.9 pounds
Ruby Zoisite Specimen Dimensions: 5.8" x 4.4" x 3.2"
Found at Longido, Tanzania
Price: $162.50
This specimen of natural color ruby in green zoisite rough was mined in Tanzania. There is a ruby crystal measuring 1.5 inches long exposed on the upper surface as shown. The photo at left was photographed wet under reflected sunlight to show the true colors. This ruby in zoisite rough makes a nice mineral specimen just as it is, although it could also be used as superior grade lapidary rough. There are more ruby crystals exposed on its backside. See also a back view photo of this natural specimen of ruby in zoisite.

Ruby in Zoisite Rough Decorator Specimen, 5.3 Lbs


Code: zoisite-rough-104
Natural ruby in zoisite rough weighing 5.3 pounds
Ruby Zoisite Specimen Dimensions: 7" x 5.2" x 3.1"
Found at Longido, Tanzania
Price: $214.50
This specimen of natural color ruby in green zoisite rough was mined in Tanzania. There are several ruby crystals exposed on the fresh break of the upper surface as shown. The photo at left was photographed wet under reflected sunlight to show the true colors. This ruby in zoisite rough makes a nice mineral specimen just as it is, although it could also be used as superior grade lapidary rough. See also a back view photo of this natural specimen of ruby in zoisite.

Ex-Large Ruby in Zoisite Necklace


Code: rbyj330_ruby-jewelry
This genuine ruby pendant is 2.5" long x 1" wide (63mm x 27mm)
Price: $108.25
This natural ruby in zoisite pendant was handcrafted in 925 sterling silver and set with a 41x24mm ruby in zoisite cabochon gem. This beautiful ruby pendant includes a sterling silver chain necklace 18 inches long, and it is included at no extra charge. The gem in this ruby necklace was hand-ground & polished from natural ruby in zoisite rough mined in Tanzania.

Large Ruby in Zoisite Bracelet


Code: rbyj341_ruby-jewelry
This genuine ruby bracelet has an adjustable length from 7 inches to 8.5 inches long
Price: $295.00
This unique ruby in zoisite bracelet was handcrafted in 925 sterling silver and set with seven genuine ruby in zoisite cabochon gems. The gems in this beautiful ruby bracelet have not been heated or treated in any way! They were hand-ground & polished from natural ruby in zoisite rough mined in Tanzania. See also a full view of this unique ruby in zoisite bracelet.

Large Ruby in Zoisite Pendant


Code: rbyj343_ruby-jewelry
This genuine ruby pendant is 1.9" long x 1" wide
Price: $84.25
This natural ruby in zoisite pendant was handcrafted in 925 sterling silver and set with a 34x25mm oval shaped ruby in zoisite cabochon gem. The gem in this unique ruby pendant was hand-ground & polished from natural ruby in zoisite rough mined in Tanzania.
 

Pink Sapphire Crystal, 228.4 carats

This unique item is sold.
Item: spkm130
Natural color pink sapphire weighing 45.68 grams (228.4 carats)
Sapphire Crystal Dimensions: 1.2" x 1.1" x 0.85"
(31mm x 27mm x 22mm)
Mined in Tanzania
Price: $54.82
This natural pink sapphire crystal is unheated with natural pink color, and it is translucent with slightly tapering hexagonal form. The edges of this sapphire crystal glow pink when held to a light, and it shows some interesting triangular surface features on its upper pincoidal termination. See a view showing the triangular surface features on this pink sapphire crystal. There is a small amount of matrix still attached on some surfaces.
 

Sapphire Specimen, 754.1 carats!


Item: spkm118
Natural color sapphire crystal weighs 150.82 grams (754.1 carats)
Sapphire Specimen Dimensions: 2.8" x 1.4" x 1.2"
(70mm x 36mm x 30mm)
Mined in Tanzania
Price: $150.82
This natural unheated sapphire specimen is a partially terminated sapphire crystal with natural grayish-purple color. It is translucent with small semi-transparent areas. The edges of this sapphire crystal glow pink when held to a light. See an opposite side view of this natural sapphire specimen.
 

Pink Sapphire in Matrix Decorator Specimen

This unique item is sold.
Item: spkm109
Sapphire in matrix specimen weighing 16.3 Lbs!
13.5" x 7.5" x 3.5"
(343mm x 191mm x 90mm)
Mined in Madagascar
Price: $389.01
This natural sapphire in matrix specimen weighs 16.3 pounds and measures over one foot long! It has several translucent pink sapphire crystals, the largest measures 3/4 inch across. They have medium pink natural color and flat tabular form. The photo at left shows a close-up, see also a full-view photo.
 

Purple Sapphire Crystal, 434.9 carats


Item: spkm127
Natural color purple sapphire crystal weighs 86.98 grams (434.9 carats)
Sapphire Crystal Dimensions: 1.7" x 1.3" x 0.95"
(43mm x 33mm x 24mm)
Mined in India
Price: $239.20
This unheated purple sapphire crystal is completely natural, and it has deep reddish-purple natural color. It has cabochon grade translucency with tabular hexagonal form. See also an opposite side view of this purple sapphire crystal.
 

Purple Sapphire Crystal, 549.5 carats


Item: spkm128
Natural color purple sapphire crystal weighs 109.9 grams (549.5 carats)
Sapphire Crystal Dimensions: 1.8" x 1.5" x 1"
(45mm x 37mm x 26mm)
Mined in India
Price: $357.18
This unheated purple sapphire crystal is completely natural, and it has deep reddish-purple natural color. It has cabochon grade translucency with tabular hexagonal form. There are some interesting natural triangular surface features on the bottom of the crystal which resemble mountains when viewed in a certain position. See a bottom view of this purple sapphire crystal.
 

3500 carat Purple Sapphire Crystal


Item: spkm129
Natural color purple sapphire crystal weighs 700 grams (3500 carats)
Sapphire Crystal Dimensions: 3.7" x 2.9" x 2.3"
Mined in India
Price: $1745.00
This unheated purple sapphire crystal is completely natural, and it has deep reddish-purple natural color. It has cabochon grade translucency with tabular hexagonal form. The photo at left is a top view. See a side view of this natural color purple sapphire crystal. There are some interesting natural triangular surface features on the bottom of the crystal which resemble a range of mountains when viewed in a certain position. See a bottom view of this natural purple sapphire specimen.
 


Our Ruby Crystals are 100% natural and untreated!

Would you like us to inform you when we add more natural ruby crystals?

Ruby Crystal Jewelry Pink Sapphire Crystal Specimen

See our genuine Ruby Crystal jewelry.

See also our natural untreated pink sapphire crystals and our natural untreated blue sapphire crystals. We offer a hand-picked selection of natural color purple sapphire crystals, and a selection of naturally asteriated star sapphire crystals with polished ends to show their amazing six ray stars!

Red sapphire (red corundum) is popularly known as ruby. See our pages displaying genuine ruby rings, ruby necklaces and ruby earrings.

We have been mining for aquamarine, citrine, kunzite, topaz, tourmaline and other gems for more than 25 years, and we have a very large variety of natural crystals available for these and other minerals including peridot crystals, amethyst crystals, and quartz crystals of all sizes.

See our page with links to natural crystals of all mineral varieties! See also our page with links to all of our polished crystals.

See the links below for a selection of superior quality natural crystals.

Natural Crystals & Mineral Specimens


See also our mineral specimen & crystal pages displaying natural kunzite crystals. We have a large inventory of old stock naturally terminated black tourmaline crystals.

Be sure to see photos of our natural color blue kyanite crystals.
We also have a page displaying natural color tourmaline crystals of all colors!

Ruby Crystals

Each one of our ruby crystals is completely natural, and they were mined in India. You may have noticed that some of our ruby crystals have red-purple color, some have red-pink color, and some are dark red in color. These are all natural color ruby crystals. Here at mineralminers.com, we do not have any heated or treated ruby crystals, each crystal is 100% natural! We specialize in superior quality natural ruby crystals of very rare large sizes, and also ruby in matrix specimens. We do have more ruby crystals in stock, including some very rare quality ruby crystals and some extra large natural ruby specimens.

Ruby Crystal Physical Properties

Ruby Crystal Color

We specialize in Natural Color Ruby Crystals:

Ruby occurs in nature as pinkish-red to red to purplish-red corundum. In some unusual geologic settings, a strongly colored host rock can make an attractive color contrast with its embedded ruby crystals making the ruby containing rock an attractive lapidary material for making jewelry & other collectable handcrafted items such as mineral spheres. A popular example of this is ruby in zoisite with deep red ruby crystals in a bright green zoisite matrix. Be sure to see our handcrafted ruby in zoisite jewelry! Another popular example of lapidary grade ruby containing rock is ruby in green fuchsite - see a selection of collectable ruby in fuchsite spheres.

Ruby Crystal Hardness

Ruby is a very durable mineral with a hardness of 9 on Moh's hardness scale! Due to its high hardness, ruby is often mined in alluvial geologic settings where the more durable minerals have been concentrated by erosion and watershed.

Ruby Crystal Habit

Ruby commonly forms as both tabular crystals and prismatic crystals terminated by basal pinacoids. Ruby often occurs as tapering hexagonal pyramidal crystals with a barrel-shaped form. The prismatic faces of ruby crystals frequently have deep horizontal striations.

Ruby Crystal Chemical Composition

Ruby is an aluminum oxide: Al2O3. The color in ruby is due to trace impurities of chromium.

Ruby Crystal Occurance

Ruby occurs characteristically in aluminum-rich and silica-poor rocks. Ruby occurs as an accessory mineral in metamorphic rocks derived from aluminous or carbonate sediments such as crystalline limestones and marbles, mica schists and gneisses. Ruby crystals are also found in contact zones between igneous rocks and limestones.

Ruby also appears in silica-poor light colored igneous rocks such as desilicated pegmatites, syenites and nepheline syenites.

Due to the high hardness of ruby and its chemical inertness, ruby crystals often encountered in eluvial and alluvial deposits.

Ruby Crystal Metaphysical Properties

Ruby is said to inspire love, and to enhance creativity, wisdom and spirituality. Ruby crystals are also said to give confidence, self-esteem and courage, and to stimulate leadership qualities. Ruby is also said to have been helpfull in treating heart and circulatory disease.

Ruby Crystal Historical Information

The name ruby originated from the Latin word ruber meaning red. Ruby is among the oldest gems known to man, dating back many thousands of years. The ruby has always been held in very high regard, and the ancient Sanskrit names for ruby translate as king of precious stones or leader of precious stones! Ruby was in the 'Breastplate of Judgement' of Aaron, described in the bible (Exodus: xxviii, 15-30).

Throughout history ruby crystals have been attributed with having a great variety of beneficial properties. Ruby was said to preserve health and give invulnerability from wounds, and to guarantee that one's status and posessions would never be taken. The wearing of a ruby was said to signify manhood, nobility and valor in a man, and pride & passion in a woman.

For more information about natural ruby and its history, physical properties, chemistry, occurance, and metaphysical uses be sure to see our ruby information page.

See also our page displaying genuine ruby gemstones, and our genuine ruby earrings.


Corundum Information & Ruby Products

RUBY Facts & Information:


For more information about natural ruby and its history, physical properties, chemistry, occurance, and metaphysical uses be sure to see our ruby information page.

To see photos of another mineral variety, select any link from our Mineral Inventory & Factsheet Index.


To see more natural ruby photos, just select another ruby link shown below.

Natural Ruby Products

Natural Ruby Product Images

Follow any of these linked images to see more genuine ruby products:


Ruby Crystals

Would you like us to inform you when we add more natural color ruby crystals on this page?
We have over 150 tons of gem & mineral items in stock at our mineral warehouses, so be sure to let us know if you have any natural ruby crystal special requests.

Please contact our webmaster or our 'site' geologist with any questions or comments about our genuine ruby crystals.

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Last Updated: July 27th, 2021
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