Apatite Crystal in a large Feldspar Crystal - Pakistan

Contributed by: Mark Cole
Date: Apr 2nd, 2026
Locality: Pakistan (See on Mindat)

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

Fluorescence under shortwave UV light.

Normal light.

Normal light. Image shows the specimen compared to a US dollar bill.

Summary of luminescence responses:

Feldspar (Mindat) (RRUFF)

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

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