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Natrodufrénite Xanthoxenite & Ushkovite

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PJM82430

Natrodufrénite Xanthoxenite & Ushkovite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Toms Phosphate Quarry, Kapunda, South Australia, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 7.3 × 4.3 cm
Description

Dark green to black crystals of natrodufrenite with green Xanthoxenite and micro snail trails of pale yellowish green ushkovite with leucophosphite and apatite. this is an extremely rich specimen of these rare phosphate species from an isolated zone at Toms Phosphate Quarry

 

Mineral Data
What's on the rock

Natrodufrénite

Formula: 
NaFe2+Fe3+5(PO4)4(OH)6·2H2O
Strunz: 
8.DK.15
Hardness: 
3.5 - 4.5
Type Locality: 
Pluherlin Castle, Rochefort-en-Terre, Morbihan, Brittany, France

Xanthoxenite

Formula: 
Ca4Fe3+2(PO4)4(OH)2·3H2O
Strunz: 
8.DH.40
Crystal System: 
Triclinic
Hardness: 
2.5
Type Locality: 
Hühnerkobel Mine (Hennenkobel Mine), Rabenstein, Zwiesel, Lower Bavaria, Bavaria, Germany

Ushkovite

Formula: 
MgFe3+2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Crystal System: 
Triclinic
Hardness: 
3.5
Type Locality: 
Pit No. 232, Bol'shoi Tatkul' Lake, Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...
Earthstones Australia

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