Wollastonite, Miserite, Aegirine - Arkansas

Contributed by: FMS Admin
Date: May 25th, 2026
Locality: Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA (See on Mindat)

Description:
Not known for fluorescents, Arkansas delivered with this piece of wollastonite, miserite, and aegirine from the Union Carbide Vanadium Mine in Potash Sulphur Springs, Garland County, Arkansas. The mine is the type locality for miserite, the bright yellow fluorescing material that is dusty rose colored in daylight. The wollastonite is a dull brownish color in shortwave, but surprisingly explodes under midwave, fluorescing a bright burnt orange. The aegirine is the black, non-fluorescent mineral. A combination of both MW and SW really shows off the rock well.

Originally posted by Fire Viper on Nature's Rainbows in 2017.

Fluorescence under midwave and shortwave UV light.

Fluorescence under midwave UV light.

Fluorescence under shortwave UV light.

Normal light.

Summary of luminescence responses:

Miserite (Mindat) (RRUFF)

• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Orange
• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow

• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Orange