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Cubanite & Harmotome

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SYA811314

Cubanite & Harmotome

Analysed
Type Locality

Description Tabs

Description
Locality: 
Samson Mine, St Andreasberg, Goslar, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6 × 5 cm
Description

Rich coverage with bronce metallic groups of analysed cubanite needles and clear white harmotome crystals on quartz.

All the visible dark dots between the harmotome are groups of cubanite crystals !

The Samson Mine is the Type Locality for harmotome

Mineral Data
What's on the rock

Cubanite

Formula: 
CuFe2S3
Strunz: 
2.CB.55a
Crystal System: 
Orthorhombic
Hardness: 
3.5
Type Locality: 
Barracanao (Baracoa), Moa-Baracoa District, Mayarí-Baracoa Belt, Holguín Province, Cuba

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Seller Information

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