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!

Big Powellite Crystal. India

Contributed by: FMS Admin
Date: Feb 28th, 2026
Locality: Maharashtra, India (See on Mindat)
Size: 33 x 28 x 37 mm
Weight: 41 g

Description:
Good example of a Powellite Crystal from India.
Directly bought from an Indian collector at the International Mineralogical Exhibition in Turin (2017).

Originally posted by Stefano Buzzoni on Nature's Rainbows.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Normal light.
Normal light.
Fluorescence under shortwave UV light. Side 2
Fluorescence under shortwave UV light. Side 2
Comparison of the powellite crystal with a 10-euro banknote (67x127mm)
Comparison of the powellite crystal with a 10-euro banknote (67x127mm)

Summary of luminescence responses:

Powellite (Mindat) (RRUFF)

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

FMDB Home Page
Submit a new specimen!
My Collection