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Helvine & Feldspar

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FRN128068

Helvine & Feldspar

Description Tabs

Description
Locality: 
Yunxiao County, Zhangzhou, Fujian Province, China (Peoples Republic)
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.5 × 2 cm
Largest Crystal: 
0.90cm
Description

Two complete, fully developed and well formed orange Helvite crystals set on a matrix of feldspar.

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

Feldspar

Group Parent: 
Feldspar Group
Oriental Minerals