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Girvasite & Bakhchisaraitsevite

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JYJ627863

Girvasite & Bakhchisaraitsevite

Description Tabs

Description
Locality: 
Cerro Mejillones, Mejillones Peninsula, Antofagasta Province, Antofagasta Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.1 × 1.7 cm
Description

Rich piece hosting acicular white girvasite crystsals with colourless bakchisaraitsevite. 

Very good sample.

References: Möhn, G. SEM & XRD analysed 

Mineral Data
What's on the rock

Girvasite

Formula: 
NaCa2Mg3(PO4)2(H2PO4)(CO3)(OH)2·4H2O
Strunz: 
8.DO.05
Hardness: 
3.5
Type Locality: 
Kovdor Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Bakhchisaraitsevite

Formula: 
Na2Mg5(PO4)4·7H2O
Strunz: 
8.CH.50
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Kovdor Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...