Fluorescent Mineral Database

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Quartz Crystals with Petroleum Inclusions - Pakistan

Contributed by: Chris Clemens
Date: Apr 29th, 2026
Locality: Balochistan, Pakistan (See on Mindat)

Description:
These are double terminated, Herkimer diamond-like, quartz crystals from Pakistan that contain petroleum (oil) inclusions. When viewed under visible light the petroleum inclusions look like little wispy yellow/brown blobs inside the crystals. When seen under UV the petroleum fluoresces bright blue/white, making the inclusions look like beautiful sparkling stars in the night sky. The largest crystal is 26mm in length.

Originally posted by Chris Clemens on Nature's Rainbows in 2017.

Fluorescence under shortwave UV light.
Fluorescence under shortwave UV light.
Fluorescence under longwave UV light.
Fluorescence under longwave UV light.
Normal light.
Normal light.

Summary of luminescence responses:

Quartz (Mindat) (RRUFF)

  • Fluorescence under Longwave (365nm LED) UV light: Blue
  • Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue

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