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Helvine

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UVM604022

Helvine

Classic Locality

Description Tabs

Description
Locality: 
San Juan Mine, Gordon Camp, Cochise County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.8 × 1.9 cm
Description

A rich specimen of helvine from the San Juan Mine.   This specimen features tetrahedral yellow crystals in matrix.  

Mineral Data
What's on the rock

Helvine

Formula: 
Mn2+4(Be3Si3O12)S
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Friedefürst Mine, Breitenbrunn, Breitenbrunn District, Erzgebirge, Saxony, Germany

Seller Information

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