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Davinciite & Villiaumite

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SMM563425

Davinciite & Villiaumite

Rare Mineral

Description Tabs

Description
Locality: 
Koashva Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3 cm
Description

This sample of nephelinic syenites from one of the famous places of the Kola Peninsula contains the rare mineral davinciite accompanied by eudyalite crystals, which, in the largest fragment shows the isometric form. Rare and interesting sample.

Boxed with Label
Mineral Data
What's on the rock

Davinciite

Formula: 
Na12K3Ca6Fe2+3Zr3(Si26O73OH)Cl2
Hardness: 
0.0
Type Locality: 
Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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

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