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Nenadkevichite

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SYM166918

Nenadkevichite

Rare Mineral

Description Tabs

Description
Locality: 
Demix-Varennes Quarry, Varennes & St-Amable, Montérégie, Québec, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 3 cm
Description

Sharp clear nenadkevichite crystals. One terminated on an aegirine needle.

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...