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0 item @ $0.00  

Murmanite

#PD34724

Murmanite

#PD34724
Availability
Sold
Size
4 x 3 x 2.5 cm - Miniature 
Formula
Na2Ti2(Si2O7)O2·2H2O (RRUFF)
Locality
Lovozero Massif, Kola Peninsula, Russia

Murmanite is NOT a mica but is a sorosilicate and is triclinic and contains Nb-Ti in large platy aggregates. Rare as crystals - lilac to pink ot purple in nepheline syenites and their pegmatites asccording to Bernard and Hyrsl. Looks micaceous but is not, although does posses a distinct basal cleavage.

 

Murmanite

Formula
Na2Ti2(Si2O7)O2·2H2
Crystal System
Triclinic 
Crystal Habit
Tabular, Massive 
Cleavage
Perfect, None, None 
Luster
Vitreous - Greasy 
Color
pink, bright pink, silvery, yellow, brown 
Streak
white 
Class
Triclinic - Pedial 
Fracture
Brittle - Uneven 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Murmanite
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Other Available Murmanite
WebMineral
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