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Villiaumite Lomonosovite & Lamprophyllite

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CLB59000

Villiaumite Lomonosovite & Lamprophyllite

TU Bergakademie Freiberg
Classic Locality

Description Tabs

Description
Locality: 
Rasvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 5 × 5.7 cm
Description

Complex paragenesis of rare minerals - red villiaumite, pinkish brown lomonossovite, brown lamprophyllite, green-black aegirine and white nepheline.

Probably from the fifties or sixties.

Old typewritten label.

Mineral Data
What's on the rock

Villiaumite

Formula: 
NaF
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Rouma Island (Roume Island; Roma Island; Ruma Island), Los Archipelago (Los Islands), Guinea

Lomonosovite

Formula: 
Na5Ti2(Si2O7)(PO4)O2
Strunz: 
9.BE.32
Hardness: 
3.0 - 4.0
Type Locality: 
Pegmatite No. 65, Chinglusuai River Valley, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Lamprophyllite

Formula: 
(Sr,K,Ba)2(Na,Ti,Mn2+,Fe3+)4Ti2(Si2O7)2O(O,OH,F)
Strunz: 
9.BE.25
Hardness: 
2.5
Colour: 
Yellow
Type Locality: 
Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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