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Scorodite & Pharmacosiderite

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PAV854707

Scorodite & Pharmacosiderite

Analysed

Description Tabs

Description
Locality: 
Mostardeira Mine, Glória, Estremoz, Évora District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.9 × 2.3 cm
Description

Group of very nice intense blue scorodite crystals (excelent for the locality!). In the back of the bspecimen, also orange pharmacosiderite crystals, sometimes coated by a greenish goethite film. A rarity for Mostardeira Mine.

Analyzed.

 

Collected: 
2014
Boxed with Label
Mineral Data
What's on the rock

Scorodite

Formula: 
Fe3+AsO4·2H2O
Strunz: 
8.CD.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.0
Type Locality: 
Stamm Asser Mine, Graul, Langenberg, Schwarzenberg District, Erzgebirge, Saxony, 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