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Calcite and Barite on Quartz
calcites up to 4.0 cm barite up to 2.5 cm
(Autor: Bob Harman)

Monroe Reservoir spillway, Monroe County, Indiana, USA
Calcite and Barite on Quartz
calcites up to 4.0 cm barite up to 2.5 cm
(Autor: Bob Harman)

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