Calcite, Sphalerite, Hydrozincite - Columbia Mine, Marion, Kentucky

Contributed by: Mark Cole
Date: Mar 28th, 2026
Locality: Columbia mine, Marion, Crittenden County, Kentucky, USA (See on Mindat)
Size: 13 x 13 cm

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.

Fluorescence under shortwave UV light.

Normal light. Image added by Michael Crawford who now owns this specimen.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: White

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

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue