Gem Ruby from Pakistan

Contributed by: Mark Cole
Date: Apr 7th, 2026
Locality: Nagar District, Gilgit-Baltistan, Pakistan (See on Mindat)

Description:
Ruby is really always best under longwave UV, and this piece is no exception. The marble(?) matrix is also nicely fluorescent...

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

Fluorescence under longwave UV light.

Normal light.

Normal light. Closeup

Normal light. Specimen size image compared to a US dollar bill.

Summary of luminescence responses:

Corundum var. Ruby (Mindat) (RRUFF)

• Fluorescence under Longwave (365nm LED) UV light: Red