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Dolomite, Calcite, Barite on Quartz<br />Monroe Reservoir spillway, Monroe County, Indiana, USA<br />see ruler for scale; the larger example is 23 cm with a 13 cm cavity<br /> (Author: Bob Harman)

Dolomite, Calcite, Barite on Quartz
Monroe Reservoir spillway, Monroe County, Indiana, USA
see ruler for scale; the larger example is 23 cm with a 13 cm cavity
(Author: Bob Harman)

Dimensions: 1507 x 1224
File size: 316.89 kbytes
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