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!

Aragonite and chondrodite from the Long Lake Zinc Mine

Contributed by: Axel Emmermann
minID:
Date: Jan 23rd, 2025
Locality: Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), Olden Township, Frontenac County, Ontario, Canada (See on Mindat)

Description:
The locality yields specimens that are stunning. Sometimes I wonder if the chondrodite is correctly identified... Fe2+ is a notorious fluorescence quencher. Let\'s call it a humite-group mineral. Also, the so-called aragonite is very blue... almost like hydrozincite. Someone should take out the spectrometer. It\'s very easy for aragonite and hydrozincite to become intergrown.

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

Summary of luminescence responses:

Chondrodite

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
Aragonite
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue

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