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Albite & Nenadkevichite

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CFL1105300

Albite & Nenadkevichite

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6.5 × 3.5 cm
Description

Classic specimen of weakly fluorescent pink albite crystals associated with ''sandwich'' crystal habit nenadkevichite, epididymite, aegirine, eudyalite group and prismatic natrolite.  The top layers of the nenadkevichite crystals may be a different species.  Collected by Gilles Haineault in 2003.  Ex-Gilles Haineault collection specimen.

Mineral Data
What's on the rock

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

Nenadkevichite

Formula: 
(Na,◻)8Nb4(Si4O12)2(O,OH)4·
Strunz: 
9.CE.30a
Hardness: 
5.0
Type Locality: 
Natrolite Stock (Pegmatite No. 61), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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