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Girvasite & Bakhchisaraitsevite

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JYJ614585

Girvasite & Bakhchisaraitsevite

Description Tabs

Description
Locality: 
Mejillones Peninsula, Mejillones, Antofagasta Province, Antofagasta Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.7 cm
Description

Colourless girvasite spheres and beautiful bakhchisaraitsevite, hollow patterns are minyulite. 

Reference: G. Möhn/J.Desor analytical work with SEM-EDS. 

XRD performed by J.Schlüter. 

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...