Spodumene from the Haapaluoma Mine, Finland

Contributed by: Mark Cole
Date: May 18th, 2026
Locality: Haapaluoma pegmatite, Peräseinäjoki, Seinäjoki, South Ostrobothnia, Finland (See on Mindat)
Size: 5 x 3 x 5 inches
Weight: 2.24 lb

Description:
The fluorescent mineral is spodumene, but the piece has all kinds of other minerals - quite pretty under white light. I find MW fluorescence very unusual. SW and LW are pretty much the same (brighter under LW) but MW shifts to blue, and more of it. Strange. Fluorescent pictures were taken at ISO-100, f/14.8 for 8 seconds.

Originally posted by Mark Cole on Nature's Rainbows in 2016.

Fluorescence under midwave UV light.

Fluorescence under longwave UV light.

Fluorescence under shortwave UV light.

Normal light.

Summary of luminescence responses:

Spodumene (Mindat) (RRUFF)

• Fluorescence under Longwave (365nm LED) UV light: Orange
• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Blue
• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Orange