4 - Color Combination, Franklin, New Jersey

4-Color Combination. Esperite, Hardystonite, Willemite and Calcite Franklin Mine, Franklin New Jersey

Normal light	Shortwave ultraviolet

This is a beauty. There are six different minerals in one specimen.
Four are fluorescent and two non-fluorescent.

Here are four minerals fluorescing under shortwave UV:

Willemite - Green
Calcite - Red
Esperite - Yellow
Hardystonite - Blue-violet

Two non-fluorescent minerals are franklinite and zincite.

The size of this specimen is 3" long X 2 3/4" wide x 1 5/8" thick.