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Amethyst Information

See also our other varieties of QUARTZ: AGATE , AMETHYST, AMETRINE, Blue AVENTURINE, Green AVENTURINE,
CAT'S-EYE QUARTZ, CHRYSOPRASE, CITRINE, ELESTIAL QUARTZ, JASPER,
PHANTOM QUARTZ , ROCK CRYSTAL, ROSE QUARTZ, RUTILATED QUARTZ SKELETAL (Elestial) QUARTZ, and SMOKY QUARTZ


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Amethyst Physical Properties
Amethyst Background Information
Amethyst Occurance and Diagnostic Features
Amethyst History and Uses
Amethyst Metaphysical Properties


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AMETHYST PHYSICAL PROPERTIES

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QUARTZ (Amethyst) BACKGROUND INFORMATION

Amethyst is a macrocrystalline variety of the mineral Quartz (SiO2). Quartz is the most abundant single mineral on earth. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks.

Quartz varieties are commonly separated into two groups based on the size of the individual grains or crystals; macrocrystalline quartz in which individual crystals are distinguishable with the naked eye, and cryptocrystalline quartz in which the individual crystals are too small to be easily distinguishable under the light microscope.

Some of the macrocrystalline quartz varieties are: Amethyst, Ametrine, Cat's-eye Quartz, Citrine, Phantom Quartz , Rock Crystal, Rose Quartz, Rutilated Quartz, Smoky Quartz and Strawberry Quartz.
Blue Aventurine Quartz and Green Aventurine Quartz are actually quartzites (a rock, not a mineral) composed essentially of interlocking macrocrystalline quartz grains with disseminated grains of other color imparting minerals. Amethyst Spheres Amethyst Gemstones

The cryptocrystalline varieties of quartz may be separated into two types; fibrous and microgranular. Chalcedony is the general term applied to the fibrous cryptocrystalline varieties. Agate is an example of a fibrous cryptocystalline banded chalcedony variety of quartz. Carnelian, Chrysoprase and bloodstone are other chalcedony varieties.
Chert is the general term applied to the granular cryptocrystalline varieties of quartz, of which flint and Jasper are examples.

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AMETHYST OCCURRENCE AND DIAGNOSTIC FEATURES

Amethyst has been found in siliceous volcanics, occurring as macroscopic crystals and drusy coverings inside of agate lined amygdaloidal cavities or vugs, often forming geodes. Amethyst also occurs in quartz veins.

The purple color of amethyst is due to small amounts (approximately 40 parts per million) of iron (Fe4+) impurities at specific sites in the crystal structure of quartz. The difference between amethyst and citrine is only the oxidation state of the iron impurities present in the quartz. Upon heating, the iron impurities are reduced and amethyst's purple color fades and becomes yellow to reddish-orange (citrine), green, or colorless depending on the site and original oxidation state of the iron impurities present and the amount and duration of the heating. The amethystine color usually can be regained by irradiation which re-oxidizes the iron impurities. This irradiation can be done by synthetic means, or it can occur in nature by radioactive decay of nearby radioactive minerals. In most cases this is a reversible process, however excessive heating may change the distribution of the iron impurities at the different sites within the quartz making it impossible to convert it back to amethyst by subsequent irradiation. The heating process can occur naturally or synthetically. At the present, it is not possible to determine whether or not an amethyst or citrine was synthetically irradiated or heated.

Amethyst is recognized by its color, crystal habit, occurance, hardness, glassy luster, conchoidal fracture and lack of cleavage.

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AMETHYST HISTORy AND AMETHYST USES

Amethyst has been used as gemstones and other ornamental objects for thousands of years.

The early Greeks believed that amethyst would protect one from the effects of drunkenness when consuming alcohol. A possible explanation for this unusual virtue being given to amethyst is that when water is poured into a cup fashioned of amethyst, it would have the appearance of wine yet could be drunk without experiencing wine's normal inebriative effect.

In ancient cultures, amethyst amulets were worn as antidotes against poison, to dispell sleep, as protection against harm in battle and to sharpen one's wits.
In medieval times, amethyst was still credited with protecting one from the effects of drunkenness, both of the cup and also from the intoxicating effects of being in love.
The wearing of amethyst was also known to protect soldiers from harm and give them victory over their enemies, and assist hunters with the capture of wild animals.

Amethyst Earrings

The name amethyst comes from the Greek word amethustos which means not drunken. In the first century, Pliny wrote that amethyst was so named for its color being nearly the same as that of wine. Early Greeks believed that drinking wine from an amethyst cup would prevent intoxication.

The astrological signs of amethyst are Pisces, Virgo, Aquarius and Capricorn.
Amethyst jewelry is the traditional birthstone gift for the month of February.

Amethyst is the symbolic gemstone for the 17th wedding anniversary.


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AMETHYST METAPHYSICAL PROPERTIES

Amethyst Crystals are said to bring serenity and calm, to enhance one's ability to assimilate new ideas, and to assist during meditation. Amethyst is also said to give strength and mental stability, and to provide balance between one's physical, emotional, intellectual states. Wearing amethyst jewelry is also said to make one shrewd in business matters.

Amethyst is said to help remove toxins from the body and to help treat arthritus. It also said to be usefull in treating a number of disorders including those of the digestive system, heart, nervous system, skin and hearing and to help provide relief from pain and to strengthen the immune system.

For more in-depth metaphysical information, see our Metaphysical Books section.

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Last Updated: November 30, 2013
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