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Mitridatite On Variscite Over Crandallite

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PJM41047

Mitridatite On Variscite Over Crandallite

Description Tabs

Description
Locality: 
Iron Monarch Quarry, Iron Knob, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.6 × 3.3 × 5.4 cm
Description

A hausmannite matrix has a series of cavities loaded with red varcisite var ferrian variscite spheres and crystals. These are then dotted with green mitridatite spheriods. Interestingly, a number of variscite balls have been broken through showing a core which appears to be a white fibrous mineral. The mineral is most likely crandallite which occurs in a wide range of forms at Iron Monarch and has been reported with varcisite before, this is the first time I have offered it, as a seed for the variscite to grow over. The area in question has been marked with a red and white arrow

Mineral Data
What's on the rock

Mitridatite

Formula: 
Ca2Fe3+3(PO4)3O2·3H2O
Strunz: 
8.DH.30
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Kamysh-Burun Trough, Kerchenskoe deposit, Kerchenskyi (Fe)-ore basin, Kerch peninsula (Kertch peninsula), Crimea peninsula, Crimea Oblast', Ukraine...

Variscite

Formula: 
AlPO4·2H2O
Strunz: 
8.CD.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Meßbach Quarry, Meßbach, Plauen, Vogtland, Saxony, Germany

Crandallite

Formula: 
CaAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Brooklyn Mine, Silver City, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Earthstones Australia

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