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Amethyst & Goethite

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RPL643896

Amethyst & Goethite

Description Tabs

Description
Locality: 
Royal Restormel Mine, Lostwithiel, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
5.5 × 11 × 6 cm
Largest Crystal: 
0.50cm
Weight: 
632.00gr
Description

A large and heavy specimen of shiny metallic black goethite with three vugs lined with pale euhedral amethyst crystals, some are included with tiny goethite sprays.

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0
Colour: 
Purple

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

Seller Information

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