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Goethite & Mimetite

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PJM132164

Goethite & Mimetite

Description Tabs

Description
Locality: 
Kintore Open Cut, Broken Hill, New South Wales, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 3.5 × 2.9 cm
Description

A shallow cavity in garnet sandstone is lined with pale yellow mimetite crystals which are coated with irridescent goethite, under magnification a second generation of mimetite can be seen just starting to form.

Mineral Data
What's on the rock

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

Mimetite

Formula: 
Pb5(AsO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany
Earthstones Australia

Seller Information

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Seller's terms and conditions

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