Spectacular Fluorescent Specimen from the Long Lake Zinc Mine, Ontario, Canada

Contributed by: Chris Clemens
Date: Apr 26th, 2026
Locality: Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), Olden Township, Frontenac County, Ontario, Canada (See on Mindat)
Size: 10.8 x 6.1 x 12.9 cm
Weight: 890 g

Description:
This is a beautiful multi-colored fluorescent specimen from the Long Lake Zinc Mine, near Parham, Frontenac Co., Ontario, Canada. Under shortwave UV, the specimen is dominated by red fluorescing calcite with blue/white bolts of aragonite, blue hydrozincite, and yellow dots of chondrodite.

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

Fluorescence under shortwave UV light.

Fluorescence under longwave UV light.

Normal light.

Normal light. Side 2.

Fluorescence under shortwave UV light. Side 2

Fluorescence under longwave UV light. Side 2.

Summary of luminescence responses:

Aragonite (Mindat) (RRUFF)

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

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

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