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Halite On Glauberite

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Halite On Glauberite

Description Tabs

Description
Locality: 
Lake Bumbunga, Lochiel, Mount Lofty Ranges, South Australia, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.3 × 3.5 cm
Description

This is unlike many of the other specimens seen from this locality where the glauberite has not been coated with a layer of white gypsum but remain clear and are covered in small cubes of grey to white halite. On the underside of the specimen, the halite forms more of a massive white crust, perhaps from being exposed to different brine conditions or water reabsorbtion. A neat little specimen.

Mineral Data
What's on the rock

Halite

Formula: 
NaCl
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
2.5
Streak: 
White

Glauberite

Formula: 
Na2Ca(SO4)2
Strunz: 
7.AD.25
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
El Castellar Mine, Villarrubia de Santiago, Ocaña, Toledo, Castile-La Mancha, Spain
Gondwana Minerals
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