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Cobaltarthurite & Arsenocrandallite

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MEX725820

Cobaltarthurite & Arsenocrandallite

Type Locality

Description Tabs

Description
Locality: 
Dolores Prospect, Pastrana, Murcia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.8 × 2.2 cm
Weight: 
24.00gr
Description

A very rich cobaltarthurite specimen. The yellow to reddish-brown area alone measures 1.8 cm in length. And is pervaded with small vugs, which contain small crystal groups. Arsenocrandallite shows small white balls and crust.

The crystals are clearly visible under a microscope with at least 40x magnification. The third local picture at mindat shows the place of found.
Our first picture has a FOV of less than 3 mm.

Mineral Data
What's on the rock

Cobaltarthurite

Formula: 
(Co,Mg)Fe3+2(AsO4)2(OH)2·4H2O
Strunz: 
8.DC.15
Hardness: 
3.5 - 4.0
Type Locality: 
La Reconquistada claim (prospect near Dolores mine), Pastrana, Mazarrón-Águilas, Murcia, Spain

Arsenocrandallite

Formula: 
CaAl3(AsO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.5
Streak: 
white
Type Locality: 
Neubulach, Calw, Black Forest, Baden-Württemberg, Germany

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Shipping Information

Postage Area Price
Germany
7
Europe
8
worldwide
$9
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