Manganberzeliite under shortwave UV Light

Manganberzeliite, willemite and franklinite from Franklin, NJ under shortwave UV light. The willemite fluoresces green, the franklinite and manganberzeliite are non-fluorescent. From the collection of, and photo by Robert A. Boymistruk.

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Manganberzeliite, willemite and franklinite from Franklin, NJ under shortwave UV Light

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