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Simpsonite

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SHS89753

Simpsonite

Description Tabs

Description
Locality: 
Voron'i Tundry, Murmansk Oblast, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.1 × 0.6 cm
Description

Sympsonite in matrix, uv short wave

Mineral Data
What's on the rock

Simpsonite

Formula: 
Al4(Ta,Nb)3O13(OH,F)
Strunz: 
4.DC.10
Crystal System: 
Hexagonal
Hardness: 
7.0 - 7.5
Streak: 
white
Type Locality: 
Tabba Tabba pegmatite, Wallareenya Station, Port Hedland Shire, Western Australia, Australia