El Molino is a village at the foot of Cerro Huanaquino. The name "El Molino", and the misnomer "Molino mine", have appeared on labels for the apatite and magnetite specimens from Cerro Huañaquino (qv).
The only items of geological interest from El Molino itself are fossils of the Cretaceous Miraflores Formation, including the stromatolite produced commercially for lapidary uses.
The river here is full of dredge tailings from large-scale placer operations for alluvial cassiterite washed down from Cerro Rico.
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Map Reference: 19°30'52"S , 65°48'42"W
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Mineral List: |
Almandine  | | | | Reference: | [Alfredo Petrov observation (alluvial - old placer operations for tin)] |
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Alum-(K) | | | | Reference: | [Salomon Rivas & Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)] |
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Calcite | | | | Description: | Drusy crystals lining vugs in Cretaceous stromatolite. | | Reference: | [Alfredo Petrov observation] |
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Cassiterite | | | | Reference: | [Alfredo Petrov observation (alluvial - old placer operations for tin)] |
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Gypsum | | | | Description: | "Selenite" in clays of the Cretaceous Miraflores Formation. | | Reference: | [Alfredo Petrov observation] |
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Pyrite | | | | Reference: | [Alfredo Petrov observation (alluvial - old placer operations for tin)] |
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Quartz | | | | Reference: | [Alfredo Petrov observation (alluvial - old placer operations for tin)] |
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7 entries listed. 7 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
