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Pyroxmangite

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SNJ87023

Pyroxmangite

Description Tabs

Description
Locality: 
Sunnyside Mine Group, Bonita Peak, Gladstone, San Juan County, Colorado, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 6 × 4.5 cm
Description

For years this mineral was incorrectly thought to be rhodonite. In 1976 it was discovered to be pyroxmangite. Sulfides present are sphalerite and chalcopyrite. Some pyroxmangite from the Sunnyside is auriferous although I do not see any gold in this piece. Is a favorite of Colorado lapidarists.

Mineral Data
What's on the rock

Pyroxmangite

Formula: 
MnSiO3
Strunz: 
9.DO.05
Hardness: 
5.5 - 6.0
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