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UM1991-09-OH:AlCr

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POL918684

UM1991-09-OH:AlCr

Very Rare
Analysed

Description Tabs

Description
Locality: 
Yukspor Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1 × 0.3 cm
Description

Very nice and rich sample of extremly rare (only two locations in Russia) unnamed Cr hydroxide [ γ-(Cr,Al)O(OH) or UM1991-09-OH:AlCr ] with matrix. This mineral is also a polymorph of Bracewellite, Grimaldiite and Guyanaite. Analysed by S. Mockel.

Mineral Data
What's on the rock

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