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!

Hyalite from Gallatin Co., Montana, USA

Contributed by: Simone Conti
minID: D38-GAA
Date: Dec 03rd, 2024
Locality: Gallatin County, Montana, USA (See on Mindat)
Size: 5 x 4 x 7 x cm
Weight: 85 g

Description:
Green fluorescent hyalite on basalt matrix. The best fluorescence is under shortwave UV light, weaker under longwave. I have been told it was collected in the summer of 2019 or 2020, from a locality close to the Hyalite Canyon, near Bozeman in Gallatin County, Montana. The exact locality is currently being kept confidential.

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

Summary of luminescence responses:

Hyalite

  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

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