Chondrodite, Calcite, Diopside from Long Lake Zinc Mine, Canada
Contributed by: Mark Cole
Date: Mar 11th, 2026
Locality: Long Lake Zinc Mine (Richardson Zinc Mine; Lynx Mine), Olden Township, Frontenac County, Ontario, Canada (See on Mindat)
Size: 4.5 x 3 x 6.5 inches
Weight: 3.54 lb
Description:
Long Lake Zinc (LLZ) Mine – there is some really good pieces to be found in that mine, especially if you are willing to camp out for a few days and do some serious rock bustin'. This is a 3-color piece with chondrodite, calcite, diopside, with lots of hues in between. LLZ rocks do not come small though.
SW fluorescent pictures were taken at ISO-100, f/18.6 for 6 seconds.
Originally posted by Mark Cole on Nature's Rainbows.
Summary of luminescence responses:
Calcite (Mindat) (RRUFF)
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Blue