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Steenstrupine-(Ce) & Vuonnemite In Ussingite

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CLB143069

Steenstrupine-(Ce) & Vuonnemite In Ussingite

ex Kristalldruse Munich
Rare Mineral

Description Tabs

Description
Locality: 
Shkatulka Pegmatite, Umbozero Mine, Alluaiv Mountain, Lovozero Massif, Murmansk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 4.8 × 3.3 cm
Description

Yellowish vuonnemite and black steenstrupine-(ce) in lavender-colored ussingite. Large, platy, ivory-colored vuonnemite crystals (fragments) in the ussingite.

Mineral Data
What's on the rock

Steenstrupine-(Ce)

Formula: 
Na14Mn2+2(Fe3+,Mn3+)2Ce6(Zr,Th)(Si6O18)2(PO4)6(HPO4)(OH)2·2H2O
Strunz: 
9.CK.20
Hardness: 
4.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

Vuonnemite

Formula: 
Na11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)
Strunz: 
9.BE.35
Crystal System: 
Triclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Vuonnemiok River Valley, 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

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