DESCRIPTION: | No. 79821
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Mineral: | Sphalerite on Prehnite and Calcite
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Locality: | Millington Quarry, Bernards Township, Somerset County, New Jersey |
Description: | Rare 12 mm(!) sphalerite crystal on lustrous transparent green prehnite crystals to 2 mm in fan-shaped aggregates with a colorless 14 mm calcite crystal. The sphalerite crystal appears black, but exhibits dark yellow transparency when side-illuminated. Collected in 1990s by Prof. Martin Becker, author of Recent Mineral Finds at the Millington Quarry in Rocks and Minerals v.73 #5 |
Overall Size: | 5x3.5x3 cm |
Crystals: | 1-14 mm |
Archived: | For reference only |