Sodalite on Feldspar - Sagasen Quarry, Norway
Contributed by: Mark Cole
Date: Mar 31st, 2026
Locality: Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway (See on Mindat)
Description:
The feldspar on these pieces is quite fluorescent. The sodalite is dim shortwave UV but bright longwave UV - best displayed under both wavelengths.
Originally posted by Mark Cole on Nature's Rainbows in 2016.
Summary of luminescence responses:
Feldspar (Mindat) (RRUFF)
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
- Fluorescence under Longwave (365nm LED) UV light: Orange
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Orange