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Biotite Decorator Mineral Specimens
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Large Garnet in Matrix Decorator Specimen

This unique item is sold.
Item: almm164
Natural garnet in biotite-silllimanite schist matrix weighing 11.1 Lbs
Garnet in Matrix Dimensions: : 7.5" x 6.5" x 4.5"
Mined at Itabira, Brazil
Price: $168.25
This large size decorator mineral specimen has a matrix composed of black biotite mica intergrown with long radiating formations of blade-like chatoyant sillimanite. There are several large reddish-purple almandine garnets (also known as almandite) exposed on its surfaces. The garnets are fractured and they are translucent to semi-transparent. See also a back-view photo of this large garnet in matrix decorator mineral specimen.
 
43.9 pound Garnet in Biotite-Sillimanite Matrix Decorator Specimen


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: $785.00
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. See a full-view photo of this beautiful garnet in matrix decorator specimen. See also a back-view photo of this large garnet in matrix decorator mineral specimen.
 
7.6 Lb Biotite, Sillimanite & Garnet Sphere

This unique item is sold.
Item: bios102
7.6 Lbs (3.5kg)
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.
 
 

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This is the end of our Biotite Decorator Mineral Specimens page.
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Additional Biotite Mica Items in our Virtual Gallery
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Biotite
Mineral Specimens		 Biotite
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Spectacular Decorator
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Last Updated: April 29, 2020
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