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Aldermanite On Fluellite With Minyulite

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GND48758

Aldermanite On Fluellite With Minyulite

Rare Mineral

Description Tabs

Description
Locality: 
Toms Phosphate Quarry, Kapunda, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4.3 × 3.8 cm
Description

Silky white aldermanite has grown on small fluellite crystals The minyulite occurs as fan shaped groups of flat bladed crystals on the orange limonitic matrix. There is no damage.

Mineral Data
What's on the rock

Aldermanite

Formula: 
Mg5Al12(PO4)8(OH)22·32H2O
Strunz: 
8.DE.35
Crystal System: 
Orthorhombic
Hardness: 
2.0
Streak: 
White
Type Locality: 
Moculta Phosphate Quarry (Klemm's Quarry), Angaston, Barossa Valley, North Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia...

Fluellite

Formula: 
Al2(PO4)F2(OH)·7H2O
Strunz: 
8.DE.10
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Stenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, St Austell District, Cornwall, England, UK

Minyulite

Formula: 
KAl2(PO4)2(OH,F)·4H2O
Strunz: 
8.DH.05
Crystal System: 
Orthorhombic
Hardness: 
3.5
Type Locality: 
Minyulo Well, Dandaragan, Dandaragan Shire, Western Australia, Australia
Gondwana Minerals