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Gorceixite On Apatite

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GND46734

Gorceixite On Apatite

Rare Mineral

Description Tabs

Description
Locality: 
Moculta Phosphate Quarry, Angaston, Barossa Valley, Mount Lofty Ranges, South Australia, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3 × 2.8 cm
Description

Superb radiating white gorceixite crystal groups occur on a crust of white botryoidal apatite. Some pseudomporphing of gorceixite by apatite also seems to have occured.

These minerals are best viewed with magnification. The Moculta quarry closed in 1985. 

Mineral Data
What's on the rock

Gorceixite

Formula: 
BaAl3(PO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Hexagonal
Hardness: 
6.0
Streak: 
White
Type Locality: 
Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil

Apatite

Synonym Of: 

Chlorapatite

Formula: 
Ca5(PO4)3Cl
Strunz: 
8.BN.05
Hardness: 
5.0

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Hardness: 
5.0

Hydroxylapatite

Formula: 
Ca5(PO4)3(OH)
Strunz: 
8.BN.05
Hardness: 
5.0
Crystal System: 
Hexagonal
Hardness: 
5
Gondwana Minerals