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Cerite-(Ce) Ferriallanite-(Ce) & Törnebohmite-(Ce)

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PJM49889

Cerite-(Ce) Ferriallanite-(Ce) & Törnebohmite-(Ce)

Type Locality

Description Tabs

Description
Locality: 
Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.8 × 4.2 × 3.6 cm
Description

A complex mixture of a number of REE minerals are scattered throughout  this specimen which consists of a combination of massive and scaly pinkish red cerite Ce (type locality)  in association with black ferriallanite Ce, olive green tornebohmite Ce (type locality)

Mineral Data
What's on the rock

Cerite-(Ce)

Formula: 
(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3
Strunz: 
9.AG.20
Hardness: 
5.5
Type Locality: 
St Görans Mine, Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden

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
Earthstones Australia

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