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Helvine With Spessartine

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FRN101172

Helvine With Spessartine

Description Tabs

Description
Locality: 
Yunxiao County, Zhangzhou, Fujian Province, China (Peoples Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.1 × 1.4 cm
Description

Two fully developed super-colored, lustrous crystals of second generation Helvite growth from the side of the first generation Helvite crystal, associated with gemmy Spessartine crystals.

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

Spessartine

Formula: 
Mn2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.5
Streak: 
White
Type Locality: 
Sommer quarry, Wendelberg, Haibach, Aschaffenburg, Spessart, Franconia, Bavaria, Germany
Oriental Minerals