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Calcite On Goethite

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GND60711

Calcite On Goethite

Classic Locality

Description Tabs

Description
Locality: 
Block 14 Opencut, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3 × 3.4 cm
Description

A nice miniature specimen featuring a single complete stalactite of goethite. The radiating layered structure of the goethite is evident at the base of the stalactite and has began to "onion peel". 

Almost like a waterfall to the side, are micro calcite crystals in a "nailhead" crystal form. Very nice all round.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany
Gondwana Minerals