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Nenadkevichite

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CFL920508

Nenadkevichite

Fluorescent

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.5 cm
Description

Very rich specimen of ''sandwich'' nenadkevichite crystals associated with albite and gemmy natrolite.  Definitely the best specimen of its kind we had for sale.  Collected by Gilles Haineault.

Mineral Data
What's on the rock

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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