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Helvine & Spessartine

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CAM92466

Helvine & Spessartine

Description Tabs

Description
Locality: 
Tongbei, Yunxiao County, Zhangzhou Prefecture, Fujian Province, China (Peoples Republic)
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5.5 × 2 cm
Largest Crystal: 
0.90cm
Description

Several brown tetragonal helvite crystals up to 9 mm associated with sparkling orange spessartine crystals up to 4 mm on matrix.
A good example of this uncommon species.

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
Cartils Minerals

Seller Information

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