WPAN-08/103
- Siderite, marcasite and calcite
Barroca Grande Mine,
Panasqueira, near Silvares (Fundao, Portugal)
Cluster of tan colored
rhombic crystals of siderite with a coating of white crystals of calcite
to 5 mm. across on the top face. Associated at bottom are silvery crystals
of muscovite and lustrous golden crystals of marcasite to about 1 cm.
across, these partly epitactically overgrown on arsenopyrite. The smaller
siderite crystal at bottom back has some cleaving which allows to appreciate
the darker color of the core as is typical in siderites from Panasqueira,
otherwise undamaged.
7.3x4.5x4.3 - 30
€
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