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Yukonite & Pharmacosiderite & Scorodite

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ESM541653

Yukonite & Pharmacosiderite & Scorodite

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3.3 × 2.4 cm
Description

Brown botryoidal yukonite crystals with lustrous transparent brown pharmacosiderite and transparent pale blue scorodite crystals

Mineral Data
What's on the rock

Yukonite

Formula: 
Ca3Fe3+(AsO4)2(OH)3·5H2O
Strunz: 
8.DM.25
Hardness: 
2.0 - 3.0
Streak: 
brown
Type Locality: 
Daulton Mine, Windy Arm, Tagish Lake, Carcross, Whitehorse Mining District, Yukon Territory, Canada

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

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