Dolomite, Calcite, Barite on Quartz
Canales de desagüe, Condado Monroe, Indiana, USA
see ruler for scale; the larger example is 23 cm with a 13 cm cavity
(Author: Bob Harman)
| Dimensiones: | 1507 x 1224 |
| Tamaño fichero: | 316.89 kbytes |
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