Creedite sphere

Contributed by: Axel Emmermann
Date: Jan 24th, 2025
Locality: Durango, Mexico (See on Mindat)

Description:
Creedite, Durango, Mexico. Probably but not confirmed from the Navidad Mine. This specimen cost me the princely sum of US$ 3.00. It\'s a perfectly undamaged creedite sphere of about 6 mm in diameter. The creedite, sitting on quartz, fluoresces a beautiful blue in SW and MW UV. The photo\'s are stacks of 40 images, taken in halogen light and MW-UV.

Fluorescence under midwave UV light.

Normal light.

Summary of luminescence responses:

Creedite (Mindat) (RRUFF)

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue
• Fluorescence under Midwave (305nm Lamp/Mercury) UV light: Blue