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Leucosphenite & Tuperssuatsiaite

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GMN162568

Leucosphenite & Tuperssuatsiaite

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.5 × 3 cm
Description

Translucent, columnar leucosphenite crystals with brown hairy tuperssuatsiaite crystalaggregates.
The biggest crystal is a bit damaged, but it is still a good specimen.

Mineral Data
What's on the rock

Leucosphenite

Formula: 
BaNa4Ti2B2Si10O30
Strunz: 
9.DP.15
Hardness: 
6.0 - 6.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Tuperssuatsiaite

Formula: 
Na2Fe3Si8O20(OH)2·4H2O
Strunz: 
9.EE.20
Hardness: 
0.0
Type Locality: 
Tuperssuatsiat Bay, Tunulliarfik Fjord (Tunugdliarfik), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

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