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Lanthanite-(Ce) & Ferriallanite-(Ce)

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SHS177830

Lanthanite-(Ce) & Ferriallanite-(Ce)

Description Tabs

Description
Locality: 
Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.7 × 4.3 cm
Description

Nice rich lanthanite ce on ferriallanite ce

Mineral Data
What's on the rock

Lanthanite-(Ce)

Formula: 
(Ce,La,Nd)2(CO3)3·8H2O
Strunz: 
5.CC.25
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
white
Type Locality: 
Britannia Mine (Snowdon Mine), Mt Snowdon, Gwynedd (Caernarvonshire), Wales, UK

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