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Allanite-(Ce)

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MEX132023

Allanite-(Ce)

with two antique labels, ex Alex Franz collection
Classic Locality

Description Tabs

Description
Locality: 
Miass, Chelyabinsk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 4.4 × 3.4 cm
Description

Massif, pitch black specimen was called orthite. Latest label, no picture, comes from Manfred Schaeffer.

Mineral Data
What's on the rock

Allanite-(Ce)

Formula: 
{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Qáqarssuatsiaq, Aluk Island, Kap Farvel, Kujalleq, Greenland