Chondrodite, Calcite, Diopside, Aragonite - Long Lake Zinc Mine "Layer Cake"

Contributed by: Mark Cole
Date: Mar 29th, 2026
Locality: Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), Olden Township, Frontenac County, Ontario, Canada (See on Mindat)

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.

Fluorescence under shortwave UV light.

Summary of luminescence responses:

Calcite (Mindat) (RRUFF)

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

Chondrodite (Mindat) (RRUFF)

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

Diopside (Mindat) (RRUFF)

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

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