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Pharmacosiderite & Arsenocrandallite

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MEX725805

Pharmacosiderite & Arsenocrandallite

Description Tabs

Description
Locality: 
Dolores Prospect, Pastrana, Murcia, Spain
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1.4 cm
Weight: 
2.00gr
Description

Very small green cubes of pharmacosiderite together with mica like arseniosiderite and white balls of arsenocrandallite.

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 3 mm.

Mineral Data
What's on the rock

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

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

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20
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Shipping Information

Postage Area Price
Germany
7
Europe
8
worldwide
$9
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