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Helvine Specularite On Quartz

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SLN729573

Helvine Specularite On Quartz

Description Tabs

Description
Locality: 
Jinlong, Lungchuan County, Guangdong Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.4 × 8.4 × 6.6 cm
Largest Crystal: 
2.00cm
Weight: 
384.00gr
Description

Nice specimen from China with a very interesting association of black helvine in some excellent tetrahedral crystals, heamatite var specularite in black lamellar crystals and pinkish quartz. The biggest helvine crystal measures 2 X 1.9 Cm

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

Specularite

Variety Of: 

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Hardness: 
5.0 - 6.0
Colour: 
Silvery

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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