Clinohedrite, Hardystonite, Willemite, and Calcite - Franklin Mine, Franklin, New Jersey

Contributed by: Chris Clemens
minID: 0NY-Q6H
Date: May 23rd, 2026
Locality: Franklin Mine, Franklin, Sussex County, New Jersey, USA (See on Mindat)
Size: 5.8 x 5.1 x 6.9 cm
Weight: 230 g

Description:
This spectacular, 4-colored, fluorescent specimen is from the famous Franklin Mine, Franklin, Sussex County, New Jersey. Under shortwave UV clinohedrite shows an orange response, hardystonite purple/blue, willemite bright green, and minor amounts of calcite fluoresce red. Under visible light, pink-colored, non-fluorescent bustamite is the dominant mineral. This specimen was acquired from the collection of notable former Franklin miner and mineral dealer Nick Zipco.

Originally posted by Chris Clemens on Nature's Rainbows in 2022.