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Ussingite & Sphalerite

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SHS98418

Ussingite & Sphalerite

ex. Dr. Wilke (Eppertshausen/Germany)

Description Tabs

Description
Locality: 
Shkatulka Pegmatite, Umbozero Mine, Alluaiv Mountain, Lovozero Massif, Murmansk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.9 × 3.8 × 2.8 cm
Description

Nice violet piece of ussingite with yellow sphalerte

Mineral Data
What's on the rock

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0