Sherrill Street quarry, New Britain, Hartford Co., Connecticut, USA
8.5cm x 7.5cm x 5.5cm
Photo added to mindat.org
Band of columnar calcite lining fault mineralization. This is a very rare habit here that looks like gypsum variety satin spar, but fizzes in acid and shows rhombohedral cleavage.
- 22nd March 2016
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