Fluorescent Mineral Database

Calcite, Willemite and Hydrozincite - Sterling Hill, New Jersey

Contributed by: FMS Admin
minID: GTG-5JA
Date: May 12th, 2026
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA (See on Mindat)
Size: 6.4 x 3.2 x 9.7 cm

Description:
Nice cabinet-sized specimen of calcite (red fluorescence), willemite (green fluorescence), franklinite (non-fluorescent), with a coating of hydrozincite (blue fluorescence), from Sterling Hill.

Originally posted by Frédéric Messier Leroux on Nature's Rainbows in 2022.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (255nm LED) UV light: Red
Hydrozincite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (255nm LED) UV light: Blue
Willemite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (255nm LED) UV light: Green

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