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Ussingite & Tugtupite

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BCK703715

Ussingite & Tugtupite

Gilles Haineault collection
Classic Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1 × 0.8 cm
Description

You are bidding on a small sample with a perfect, upstanding crystal of ussingite in a vug of ussingite with a small pink, rough crystal of tugtupite at the back of the cavity. Collected by Gilles Haineault. 

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

Tugtupite

Formula: 
Na4(AlBeSi4O12)Cl
Strunz: 
9.FB.10
Hardness: 
4.0
Streak: 
white
Type Locality: 
Albitite vein, Tugtup Agtakôrfia (Tuttup Attakoorfia), Tunulliarfik Fjord (Tunugdliarfik), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

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