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Lomonosovite with Villiaumite

#49855

Lomonosovite with Villiaumite

#49855
Availability
Sold
Size
7 x 6 x 3 cm - Sm Cabinet 
Formula
Na5Ti2(Si2O7)(PO4)O2 (RRUFF)
Locality
Mt. Rasvumchorr, Khibiny Massif, Kola Peninsula, Russia
Tagged
phosphate , pegmatite mineral

Deep purplish brown lamellar plates 4cm across with red Villiaumite and green Aegerine. Lomonosovite is a rare titanium pegmatite.

Lomonosovite

Formula
Na5Ti2(Si2O7)(PO4)O2 
Crystal System
Triclinic 
Crystal Habit
Tabular 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
dark brown, pink violet, black 
Streak
brown 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Uneven 
Hardness
3-4 

Data courtesy of Webmineral.

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