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Ferroan Calcite & Gonnardite

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PJM99198

Ferroan Calcite & Gonnardite

Description Tabs

Description
Locality: 
Boral Quarry, Bundoora, Whittlesea, Victoria, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.8 × 1.8 cm
Description

An open cavity in dark grey basalt is studded with small white balls of radial gonardite crystals, white bowties of barite and is dominated by honey colour spheres of ferroan calcite crystals.

This locale has been lost to collecting for more than a decade now following revegetation and rehabiliation of the site.

Mineral Data
What's on the rock

Ferroan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Fe)CO3
Hardness: 
0.0

Gonnardite

Formula: 
(Na,Ca)2(Si,Al)5O10·3H2O
Strunz: 
9.GA.05
Hardness: 
4.0 - 5.0
Type Locality: 
La Chaux de Bergonne, Gignat, Saint-Germain-Lembron, Puy-de-Dôme, Auvergne, France
Earthstones Australia

Seller Information

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All goods must be paid for prior to shipping, all bids are binding.