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SC438 - Zincite, Calcite, Franklinite, Willemite


Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA (MINDAT)
Size: 11 x 8 x 5 cm - Large cabinet (10-15 cm)
Weight: 740 g
minID: 9XK-UT1

White calcite and red zincite, with good sized black franklinite crystals up to 7mm. On the back side some of the zincite is covered by willemite dust. Under shortwave UV light the calcite and willemite fluoresce the typical red and green.

Left: Fluorescence under 254nm UVC (shortwave) Hg light. Right: normal light.
Left: Fluorescence under 254nm UVC (shortwave) Hg light. Right: normal light.
Last update: 01 October 2021