Calcite with Marcasite
specimen number:
3801694
location:
Blackstone mine, Shullsburg, Lafayette Co., Wisconsin, USA
description:
Wonderful large cabinet classic Wisconsin specimen with glassy mostly gemmy rhombohedral crystals of calcite, the prominent crystal 9.5 cm in size, on a thin shell like crystallized grouping of marcasite. This is in very good condition. Minor sphalerite present as well. Crystallized naturally all around.
Size: 22.0 x 15.0 x 9.0 cm (large-cabinet)
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