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Ferroan Calcite

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GND103667

Ferroan Calcite

Description Tabs

Description
Locality: 
Tarrone Quarry, Warrnambool, Victoria, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 1.3 cm
Description

Small hemispheres of ferroan calcite occur across the dark basalt matrix. Many of these have been broken to expose their interior which shows an outer shell of ? over the ferroan calcite. In some of these the cores are empty. Very interesting under magnification.

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
Gondwana Minerals