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SC468 - Willemite var Troostite & Calcite


Locality: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA (MINDAT)
Size: 10 x 10 x 5 cm - Cabinet (6-10 cm)
Weight: 420 g
minID: 7GU-9UY

Willemite, probably var troostite, and calcite, with a little franklinite. Under shortwave UV light the willemite and calcite fluoresce the typical bright green and red.

Left: Fluorescence under 254nm UVC (shortwave) Hg light. Right: normal light.
Last update: 04 December 2021