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Calcite, Aragonite and Dolomite (variety ferroan) on Quartz
Keokuk, Lee County, Iowa, USA
geode is about 3.3 cm, calcite is 0.7 cm, aragonite spray is 1.3 cm
(Author: Bob Harman)
| Dimensions: | 1229 x 1224 |
| File size: | 340.39 kbytes |
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