Biotite Mica Mineral Specimens
Additional Biotite Items in our Virtual Gallery

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Biotite Mica Mineral Specimens

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Biotite Mica

This unique item is sold.
Item: biom108
5.25" x 3.9" x 0.4"
(13.3cm x 9.9cm x 1.0cm)
Itinga, Brazil
Price: $13.50
This biotite mica specimen was discovered in a pegmatite at Itinga, Brazil.

Biotite Mica

This unique item is sold.
Item: biom110
7.6" x 4.7" x 0.4"
(19.3cm x 11.9cm x 1.0cm)
Itinga, Brazil
Price: $22.50
This biotite mica specimen was discovered in a pegmatite at Itinga, Brazil.
 

Large Almandine Garnet with Biotite Schist


Item: almm162_garnet-mineral-specimen
Natural garnet in matrix mineral specimen weighing 2.1 lbs
This almandine garnet mineral specimen measures 4.0" x 3.6" x 2.7"
(101 x 91 x 68mm)
Mined at Itabira, Brazil
Price: $54.50
This biotite schist matrix specimen has a single large almandine garnet (also known as almandite). This garnet weighs over one pound and measures over 3 inches across with rich reddish-purple natural color. The garnet is translucent to semi-transparent. It is partially covered with biotite mica.
 

Garnet in Biotite-Sillimanite Schist, 43.9 pounds


Item: almm155_garnet-mineral-specimen
Natural garnet in matrix mineral specimen weighing 43.9 lbs!
This almandine garnet mineral specimen measures 14" x 11" x 6"
Mined near Itabira, Brazil
Price: $562.25
This large size decorator mineral specimen has a matrix composed of black biotite mica intergrown with long blade-like chatoyant sillimanite. There are several large reddish-purple almandine garnets (also known as almandite) exposed on its surfaces, each garnet measures from 2 inches to 3 inches across! The garnets are fractured and they are translucent to semi-transparent. There is about 30% chatoyant sillimanite intergrown with the biotite mica matrix, and there also is a small amount of blue iolite as well. The photo at left was taken under daylight, see also a back-view photo of this large almandine garnet decorator mineral specimen.
 


We also carry an assortment of stands for small & medium sized minerals.

This is the end of our Biotite Mineral Specimens page.

See also our fuchsite mica mineral specimens, our lepidolite mica mineral specimens, and our seraphinite mineral specimens (also known as clinochlore mica).
To see more biotite photos, just select another item category from the table below. To see photos of another mineral variety, select any item category link in our Mineral Inventory & Factsheet Index.

Additional Biotite Item Categories in our Virtual Gallery
Go to the
BIOTITE
Factsheet &
Information Page
Select any unfollowed link to see more biotite photos
Biotite
Mineral Specimens
Biotite
Spheres
Biotite
Spectacular Decorator
& Collector Items

Would you like us to inform you when we add more natural biotite mica mineral specimens on this page?
We do have additional inventory of natural biotite mica in stock at our mineral warehouses, so be sure to let us know if you have any special requests. We also have lithium rich lepidolite mica available in volume by the drum, or by the ton! Please contact our webmaster or our 'site' geologist with any questions or comments.

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Last Updated: August 3, 2016
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