| Country of Origin | United States |
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Check the listing for details. Fluorescent Margarosanite Mineral Specimen *Franklin Mine, New Jersey*. Condition: Used, Made in United States. Listed at 75.00 USD. Fluorescent minerals use either a Shortwave, Midwave, or Longwave Ultraviolet light. These are NOT black lights. Location: Franklin Mine, Sussex County, New Jersey (type locality). Perky boxes are 1.25" in height, so you can get an idea of the size of these minerals.