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Phosinaite-(Ce) & Ussingite

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MNR184383

Phosinaite-(Ce) & Ussingite

Rare Mineral

Description Tabs

Description
Locality: 
Lovozero Massif, Murmansk Oblast, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.2 × 1 cm
Largest Crystal: 
0.20cm
Description

Brown phosinaite-Ce crystals in ussingite matrix.

Mineral Data
What's on the rock

Phosinaite-(Ce)

Formula: 
Na13Ca2(Ce,La,Th,Nd,Pr)(Si4O12)(PO4)4
Strunz: 
9.CF.15
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Koashva quarry, Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Ussingite

Formula: 
Na2AlSi3O8OH
Strunz: 
9.EH.20
Crystal System: 
Triclinic
Hardness: 
6.0 - 7.0
Streak: 
white
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland