Fluorescent Mineral Database

A new secret project! Trying to create a nice Fluorescent Mineral Database (FMDB), which would be searchable by mineral, locality, and luminescence properties. Also making it easy for people to contribute with their own specimens!

Wollastonite and Calcite - Sterling Mine, Sterling Hill, New Jersey

Contributed by: Chris Clemens
Date: Apr 28th, 2026
Locality: Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA (See on Mindat)
Size: 28 x 16 x 53 mm

Description:
This is a light-colored, granite-like rock that predominantly contains wollastonite crystals in a calcite groundmass, with other unidentified mineral components. It was collected from the Sterling Mine, Sterling Hill, Ogdensburg, New Jersey. Under shortwave UV the wollastonite fluoresces a bright warm yellow color, and the calcite responds with dim red/orange glow. This specimen is not significantly fluorescent under longwave UV.

Originally posted by Chris Clemens on Nature's Rainbows in 2017.

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

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Wollastonite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow

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