Another Long Lake combo

The Parham combos are top material for the fluorophile collectors. Calcite = red, diopside = greenish blue, chondrodite = orange, aragonite/hydrozincite = blue.

Locality: Long Lake Zinc Mine, Olden Township, Frontenac Co., Ontario, Canada.

There was some doubt if the greenish fluorescence was diopside. It appears that it is! I compared it's fluorescence to a reference diopside specimen and the spectra match up pretty nicely.

Source: Fluorescent Minerals Workgroup MKA

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