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Mineralpedia Details for Ernstite

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Ernstite

Ernstite

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Ernstite from Linopolis, Divino das Larajeiras, Minas Gerais, Brazil

Ernstite
            from Linopolis, Divino das Larajeiras, Minas Gerais, Brazil

Large crystals of Ernstite replacement of Eosphorite. The green is possibly Mitridatite. Ernstite usually occurs in just pegmatites, but it also occurs at the Big Fish phosphorite deposits in the Yukon of Canada.

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Ernstite from White Cap mine, Pennington Co., South Dakota, United States

Ernstite
            from White Cap mine, Pennington Co., South Dakota, United States

The White Cap mine is a zoned pegmatite in the Keystone district. A boulder there produced several secondary phosphates of which this is one of them. Ernstite had never been found in the Black Hills prior to this. It was verified by Andy Roberts, The amber brown spray on this specimen is about 1mm and there are a few smaller. These crystals show good terminations, are translucent, and look much like Eosphorite, however they are not bladed but rather prismatic.

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Ernstite from Linopolis, Divino das Larajeiras, Minas Gerais, Brazil

Ernstite
            from Linopolis, Divino das Larajeiras, Minas Gerais, Brazil

Solid replacement of former Eosphorite. Large crystals, terminated.

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