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Dorfmanite & Ussingite

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ESM637328

Dorfmanite & Ussingite

Rare Mineral

Description Tabs

Description
Locality: 
Lovozero Massif, Murmansk Oblast, Russian Federation
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.2 × 3.2 × 2.5 cm
Description

White dorfmanite on ussingite matrix

Mineral Data
What's on the rock

Dorfmanite

Formula: 
Na2HPO4·2H2O
Strunz: 
8.CJ.60
Crystal System: 
Orthorhombic
Hardness: 
1.0 - 1.5
Colour: 
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