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Franklinite With Spessartine & Orthoclase

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KRM51913

Franklinite With Spessartine & Orthoclase

Description Tabs

Description
Locality: 
Koksha Valley, Badakhshan Province, Afghanistan
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 3.8 × 3 cm
Description

There is no damage to this specimen, except for natural etching & cut marking. 

 

Mineral Data
What's on the rock

Franklinite

Formula: 
Zn2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Colour: 
Black
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

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

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

Seller Information

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