Cuspidine from the Franklin Mine, NJ, USA

Contributed by: Howie Green
Date: Dec 17th, 2024
Locality: Franklin Mine, Franklin, Sussex County, New Jersey, USA (See on Mindat)

Description:
Cuspidine (yellow), calcite (red), and willemite (green) fluorescence under shortwave UV light.

Fluorescence under shortwave UV light.

Normal light.

Summary of luminescence responses:

Cuspidine (Mindat) (RRUFF)

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

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

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