Fluorapatite, grape willemite, calcite and franklinite from Franklin, NJ under shortwave UV light. The fluorapatite fluoresces orange, willemite green, calcite orange-red, the franklinite is non-fluorescent. 4" x 1 1/2". From the collection of, and photo by WP.
Franklin-Ogdensburg Mineralogical Society Inc - FOMS, Franklin, NJ |
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