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Natropharmacosiderite

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TPX858039

Natropharmacosiderite

Rare Mineral

Description Tabs

Description
Locality: 
María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 5 × 4.6 cm
Weight: 
130.00gr
Description

Very interesting specimen of yellow Natropharmacosiderite crystals on alunite and volcanic rock matrix, others minerals are also present. With a powerful magnifying glass I am sure that other typical minerals of this site can be observed. The specimens of this gold mine are much appreciated by the micromounts collectors.

Mineral Data
What's on the rock

Natropharmacosiderite

Formula: 
(Na,K)Fe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
3.0
Type Locality: 
Marda oxidized zone, Koolyanobbing, Yilgarn Shire, Western Australia, Australia

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