Millerite
Gap Mine, Bart Township, Lancaster County, Pennsylvania, USA
1.9 x 1.4 x 1.2 cm. A beautiful specimen of classic bronze colored semi-acicular millerite from this famous locality in Lancaster County, Pennsylvania. Up close, you can really appreciate the sharp, "needle"-like crystals in radial aggregates. The Gap Nickel Mine was discovered in 1732, and was worked to some extent for copper. Nickel was ...
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