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Natropharmacosiderite & Arseniosiderite

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PFK637456

Natropharmacosiderite & Arseniosiderite

Classic Locality

Description Tabs

Description
Locality: 
Christiana Mine, Kamariza, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 3.6 × 2.1 cm
Description

That's the best piece that I have from the find and I was keeping it but finally decided to offer it here. Both minerals are very rare and this is a fantastic combo example of both of them. There are hundreds of sparkling green to brown crystals of natropharmacosiderite associated with spherical arseniosiderite. An amazing rarity combo specimen!

As with all specimens from this fixed-price page, there is a video of this specimen available so please contact me to send you the link.

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

Arseniosiderite

Formula: 
Ca2Fe3+3(AsO4)3O2·3H2O
Strunz: 
8.DH.30
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Burgundy, France

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450
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Shipping Information

Postage Area Price
Greece
5
Europe
13
Rest of the World
15