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Botryogen & Halotrichite

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TPX947495

Botryogen & Halotrichite

Rare Mineral

Description Tabs

Description
Locality: 
Alfredo Pit, Rio Tinto Mines, Huelva, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.6 × 2.4 cm
Weight: 
12.00gr
Description

Spectacular group of botryogen crystals with minor yellow copiapite and white halotrichite, from this famous Spanish deposit, these samples were collected when the well was still in operation, in 1998.

Mineral Data
What's on the rock

Botryogen

Formula: 
MgFe3+(SO4)2(OH)·7H2O
Strunz: 
7.DC.25
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Type Locality: 
Falun mine, Falun, Dalarna, Sweden

Halotrichite

Formula: 
FeAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Streak: 
White

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