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Ferriallanite-(Ce) Törnebohmite-(Ce) & Brochantite

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CLB654339

Ferriallanite-(Ce) Törnebohmite-(Ce) & Brochantite

Type Locality

Description Tabs

Description
Locality: 
Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 5.2 × 2.3 cm
Description

A mix of black ferriallanite-(ce), olive to gray-green  törnebohmite-(ce) (type locality) and green brochantite.

Mineral Data
What's on the rock

Ferriallanite-(Ce)

Formula: 
{CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Hardness: 
6.0 - 0.0
Colour: 
black
Streak: 
brown
Type Locality: 
Neprimetnyi pegmatite, Mount Ulyn Khuren, Khaldzan Buragtag Massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia

Törnebohmite-(Ce)

Formula: 
(Ce,La)2Al(SiO4)2(OH)
Strunz: 
9.AG.45
Hardness: 
4.5
Type Locality: 
Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

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