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Kazakovite With Villiaumite & Hornblende

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LGM847793

Kazakovite With Villiaumite & Hornblende

Ex Ring collection, Munich, Germany
Rare Mineral

Description Tabs

Description
Locality: 
Rasvumchorr Mountain, Khibiny Massif, Murmansk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.6 × 0.9 cm
Weight: 
1.70gr
Description

Yellow-brown grains of kazakovite frozen in matrix, associated with masses of green hornblende and purple villiaumite.

Rare mineral, only described for a few localities on the Kola Pensinsula.

Mineral Data
What's on the rock

Kazakovite

Formula: 
Na6Mn2+Ti(Si6O18)
Strunz: 
9.CJ.15a
Hardness: 
4.0
Type Locality: 
Karnasurt Mt, Lovozero 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

Hornblende

Synonym Of: 

Ferro-hornblende

Formula: 
☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0

Magnesio-hornblende

Formula: 
☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0

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