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Pyracmonite

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JYJ883518

Pyracmonite

Description Tabs

Description
Locality: 
Anna Mine, Alsdorf, Cologne, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.4 × 1.5 cm
Description

Colourless pyracmonite groups on matrix from the burning dumps of the Anna mine, Alsdorf, Aachen. 

Rare mineral.

 

Mineral Data
What's on the rock

Pyracmonite

Formula: 
(NH4)3Fe(SO4)3
Strunz: 
7.AC.08
Hardness: 
0.0
Type Locality: 
La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy