Köttigite under shortwave UV Light

Kottigite crystal sprays on willemite, calcite and franklinite ore from Sterling Hill Mine, NJ under shortwave UV light. The willemite fluoresces green, the kottigite, calcite and franklinite are non-fluorescent. From the collection of, and photo by JVF.

Kottigite crystal sprays on willemite, calcite and franklinite ore from Sterling Hill Mine, NJ under shortwave UV Light

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