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Argentopyrite

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JYJ574484

Argentopyrite

ex. Ahlfeld collection

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3 × 2.5 cm
Largest Crystal: 
0.50cm
Description

A very good specimen hosting argentopyrite, partly beautiful colourfull tarnished, up to 5mm! crystal size. The specimen has crystals from both sides and partly features pyrostilpnite or proustite crystals among them.

Comes with an old label of the geologist Ahlfeld, who was honoured with the rare selenium mineral ahlfeldite for his scientific journeys in Bolivia.

 

 

Mineral Data
What's on the rock

Argentopyrite

Formula: 
AgFe2S3
Strunz: 
2.CB.65
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.0
Streak: 
Grey.
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
Labels
Label Images - only: Argentopyrite