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Penkvilksite & Zorite & Raite

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CHP1091842

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Description
Locality: 
Yubileinaya Pegmatite, Karnasurt Mountain, Lovozero Massif, Murmansk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.1 × 2.1 cm
Description

specimen with some very rappresentative white massive crystalline aggregates of the rare penkvilksite with tufts of colourless crystals of zorite and tufts of brownish needles of raite on matrix.

c. 9519

Mineral Data
What's on the rock

Penkvilksite

Formula: 
Na4Ti2Si8O22·4H2O
Strunz: 
9.EA.60
Hardness: 
5.0
Colour: 
White
Type Locality: 
Yubileinaya pegmatite (Yubileinoye; Jubilejnaja), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Zorite

Formula: 
Na8(Ti,Nb)5(Si6O17)2(OH,O)5·14H2O
Strunz: 
9.DG.45
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Colour: 
Rose-red
Type Locality: 
Yubileinaya pegmatite (Yubileinoye; Jubilejnaja), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Raite

Formula: 
Na4Mn2+3Ti0.25Si8O20(OH)2·10H2O
Strunz: 
9.EE.55
Hardness: 
3.0 - 0.0
Streak: 
Yellow
Type Locality: 
Yubileinaya pegmatite (Yubileinoye; Jubilejnaja), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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Start 05 Jan 18:00
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