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!

Eucryptite and Scheelite - Xianghualing Mine, China

Contributed by: Mark Cole
Date: Apr 10th, 2026
Locality: Xianghualing Mine, Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou, Hunan, China (See on Mindat)
Size: 3.5 x 1.5 x 3.5
Weight: 12.9 oz

Description:
At the Tucson show one year a friend and I purchased a couple of small specimens of hsianghualite. It was fluorescent, a beautiful saturated red - almost like tugtupite. The mine was given as the Xianghualing Mine in Hunan. After a few attempts I finally made contact with a mineral collector over there who was interested in learning about fluorescent minerals and willing to travel. I taught him how to prospect with a UV light (even sent him one), told him where to go and what to look for - even funded his explorations (we explored many places in China). I sent him to prospect for some of this material from the Xianghualing mine. He found a few pieces and sent them over to me, I promptly began marketing them as hsianghualite. As time went on, we grew suspicious. I sent some pieces out for IDs and G. Waychunas finally confirmed what we suspected - it was eucryptite. I offered everyone who had purchased it as hsianghualite a refund, but nobody took me up on it. The combination of bright eucryptite and scheelite was just too beautiful to send back. I got a few more shipments, then sadly, things didn’t work out and I lost my contact.

These pieces have wonderfully bright red eucryptite (at first thought to be Hsianghualite) along with bright blue scheelite. Eucryptite is fluorescent a vibrant red under shortwave UV - slightly darker hue when compared to tugtupite.

Originally posted by Mark Cole on Nature's Rainbows in 2017.

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

Summary of luminescence responses:

Eucryptite (Mindat) (RRUFF)

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