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Hulsite

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CSL89615

Hulsite

Rare Mineral

Description Tabs

Description
Locality: 
Zlatý Kopec, Boží Dar, Karlovy Vary, Karlovy Vary Region, Czech Republic
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.2 × 0.9 cm
Description

Rare borate mineral hulsite, forms black, submetallic veinletsand layers in magnetite matrix

Mineral Data
What's on the rock

Hulsite

Formula: 
(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
Strunz: 
6.AB.45
Hardness: 
3.0
Colour: 
Black
Type Locality: 
Brooks Mountain, Seward Peninsula, Nome Borough, Alaska, USA
Loranth Minerals

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