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Hydroxylhedyphane

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JYJ721495

Hydroxylhedyphane

Description Tabs

Description
Locality: 
Långban, Filipstad, Värmland County, Sweden
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.3 × 1.3 cm
Description

Intense green hydroxylhedyphane with minor Cl content on the position (Cl<4-5At%). For hedyphane and mimetite the position is fully occupied by Cl giving a net At% of  ~11-12. A reference mimetite from Theba/USA was used to normalize the Cl content in good accordance with the expected Cl occupation of 11-12 At%. Raman and XRD match with the hedyphane group structure. 

The origin and influence of OH substitution in mimetite/hedyphane on the emerald green colour of these crystals remain unclear. 

Mineral Data
What's on the rock

Hydroxylhedyphane

Formula: 
Ca2Pb3(AsO4)3(OH)
Crystal System: 
Trigonal
Type Locality: 
Långban, Filipstad, Värmland, Sweden
Analysis
Analysis Report - only: Hydroxylhedyphane
Analysis Report - only: Hydroxylhedyphane
Analysis Report - only: Hydroxylhedyphane
Analysis Report - only: Hydroxylhedyphane
Analysis Report - only: Hydroxylhedyphane