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!

Chondrodite, Calcite, Diopside, Aragonite - Long Lake Zinc Mine, Ontario, Canada

Contributed by: FMS Admin
minID: 95D-5T3
Date: Feb 22nd, 2026
Locality: Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), Olden Township, Frontenac County, Ontario, Canada (See on Mindat)
Size: 7 x 4.8 x 7 cm

Description:
Classic combo from LLZ. In SW, the chondrodite fluoresces yellow, the calcite pink, the diopside aqua blue, and the aragonite blue.

Originally posted by Dennis Michael on Nature's Rainbows.

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

Summary of luminescence responses:

Aragonite (Mindat) (RRUFF)

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue
Calcite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
Chondrodite (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
Diopside (Mindat) (RRUFF)
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue

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