Fluorescent barite, calcite, willemite, hardystonite under shortwave UV light

Barite (white and gray), calcite (orange), willemite (green) and hardystonite (violet) from Franklin, NJ under shortwave UV light. Photo by Alex Kerstanski.
Fluorescent barite, calcite, willemite, hardystonite under shortwave UV light

Fluorescent barite, calcite, willemite, hardystonite under shortwave UV light

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