Fluorite - Bluffton Quarry, Ohio

Contributed by: FMS Admin
minID: QFH-P3T
Date: Feb 21st, 2026
Locality: Bluffton Stone Company Quarry, Bluffton, Richland Township, Allen County, Ohio, USA (See on Mindat)
Size: 44 x 30 x 50 mm

Description:
Macro photos of translucent brown fluorite crystals up to 7mm on matrix. Microcrystals of pyrite are also visible in white light. The fluorite fluoresces bright white in LW, with a greenish phosphorescence (also shown, but from a different angle). FOV 30mm.

Originally posted by Dennis Michael on Nature's Rainbows.

Fluorescence under longwave UV light.

Afterglow after exposure to longwave UV light.

Normal light.

Summary of luminescence responses:

Fluorite (Mindat) (RRUFF)

• Fluorescence under Longwave (365nm LED) UV light: White
• Afterglow after exposure to Longwave (365nm LED) UV light: Green