Biotite Decorator Mineral Specimens & Rare Collector Quality Items

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Biotite Decorator Mineral Specimens
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Item: Almandine Garnets in Biotite-Sillimanite Schist

Code#: almm140
Weight: 4.2 lbs
Size: 5.8" x 4.4" x 3.7"
Location: Itabira, Brazil
Price: $114.50
This biotite schist with sillimanite matrix specimen has several reddish-purple almandine garnets (also known as almandite exposed on its surfaces. Some of the garnets have sheared surfaces and some show terminations with rounded dodecahedral form that was modified due to their formation within a biotite mica schist host rock. The garnets are fractured and they are translucent to semi-transparent.

Item: Garnet in Biotite-Sillimanite Schist, 20.9 pounds!

Code#: almm141
Weight: 20.9 lbs
Size: 11.75" x 11" x 3.75"
Location: mined near Itabira, Brazil
Price: $334.50
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. The photo at left was taken under incandescent light, see also a back-view photo.

Item: Biotite Mica

This unique item is sold.

Code#: biom110
Size: 7.6" x 4.7" x 0.4"
(19.3cm x 11.9cm x 1.0cm)
Location: Itinga, Brazil
Price: $22.50
This biotite mica specimen was discovered in a pegmatite at Itinga, Brazil.

Item: 7.6 Lb Biotite, Sillimanite & Garnet Sphere

This unique item is sold.

Code#: bios102
Weight: 7.6 Lbs (3.5kg)
Size: 5" diameter (126mm)
Price: $312.25

This unusual sphere was ground and polished in the U.S.A. It consists mainly of black biotite mica and dark brown chatoyant sillimanite, and it also has a purple-red almandine garnet measuring over 2.5" exposed on the sphere's surface. The rough material that this sphere was made from was mined near Itabira in Minas Gerais, Brazil. This is a great decorator or collector sphere.

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

This is the end of our Biotite Decorator Mineral Specimens page.
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

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We do have more large decorator size biotite mineral specimens in stock at our mineral warehouses, so be sure to let us know if you have any special requests. Please contact our webmaster or our 'site' geologist with any questions or comments.

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