Arsenopyrite with Sphalerite, Siderite
specimen number:
80311425
location:
Panasqueira mine, Covilha, Castelo Branco, Portugal
description:
Bright lustrous crystal of arsenopyrite 2.6 cm across standing up nicely from a lustrous black crystal of sphalerite. Very slight and sparse micro-chipping on the left back edge of the arsenopyrite termination, from the front this is perfect. Even with the slight micro-chipping, I think this in very good condition all around. Naturally crystallized with no points of attachment. Minor siderite present.
Size: 4.5 x 4.0 x 2.5 cm (miniature)
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