Fluorescent Phlogopite and Diopside - Papineau RCM, Outaouais, Quebec, Canada
Contributed by: FMS Admin
Date: May 17th, 2026
Locality: Papineau RCM, Outaouais, Québec, Canada (See on Mindat)
Size: 10.5 x 6.2 x 11.5 cm
Description:
Shown here is one of the best pieces of fluorescent phlogopite and diopside I found, during visits in a new occurrence with one of my partners, in October and November 2020. As mentioned in a previous post, we found lots of phlogopite and diopside, as well as a few scapolite specimens on this property. I mention only the general area and not the exact location, since we were asked not to tell other collectors the exact locality, as it is located on private land.
Originally posted by Frédéric Messier Leroux on Nature's Rainbows in 2021.
Summary of luminescence responses:
Diopside (Mindat) (RRUFF)
- Fluorescence under Shortwave (255nm LED) UV light: Blue
- Fluorescence under Shortwave (255nm LED) UV light: Yellow