Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Helvine Smoky Quartz & Muscovite

Views:
Watches:
FRN103911

Helvine Smoky Quartz & Muscovite

Description Tabs

Description
Locality: 
Yunxiao County, Zhangzhou, Fujian Province, China (Peoples Republic)
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.8 × 2.1 cm
Largest Crystal: 
1.00cm
Description

A fully developed and well formed orange helvite crystals set on the matrix covered with muscovite crystals associated with transparent smoky quartz and spessartine. There also several un-fully developed helvite crystal set on the 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

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White
Oriental Minerals