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Esperite, Willemite, Calcite


Esperite : PbCa3Zn4[SiO4]4, Willemite : Zn2[SiO4], Calcite : CaCO3

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Locality: Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
A fine 3-color fluorescent specimen featuring bright yellow fluorescent esperite with willemite (green) and calcite (red) (Short wave UV). Specimen is 10.2 x 9.5 x 5.75 cm. Ex: Ralph Thomas collection and now in the Mark Boyer collection. Photograph compliments of the Franklin Mineral Museum.

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