Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Harmotome & Cubanite

Views:
Watches:
CR904962

Harmotome & Cubanite

Description Tabs

Description
Locality: 
Abendröthe Mine, St Andreasberg, Goslar, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.7 × 2.6 cm
Description

This is a very good and rich harmotome specimen from the very famous St. Andreasberg mining area.

Lustrous white to smoky-white harmotome crystals with grey metallic cubanite needles all over the surface of the specimen.

Ex Günter Schnorrer-Köhler collection.

Mineral Data
What's on the rock

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

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