Turneaureite on Calcite - Franklin, New Jersey
Contributed by: Howie Green
Date: Mar 9th, 2026
Locality: Franklin Mine, Franklin, Sussex County, New Jersey, USA (See on Mindat)
Description:
We have a bunch of folks attending the Franklin "SuperDigg" this April (2017). Many of them are carrying the new Convoy 365nm LW flashlight so I thought it would be nice to give folks an idea of what many of the minerals they hope to find would look like under the Convoy. This light is very powerful and puts out a pinpoint beam which causes fluorescence in minerals not thought to really be LW fluorescent. In some cases, you have to hold the light right up against the rock but it gives a great hint about what it is and what it might look like under shortwave. This is a piece of turneaureite with calcite. The first picture is SW while the 2nd picture is LW 365nm Convoy. The turneaureite is nicely fluorescent under the Convoy light.
Originally posted by Howie Green on Nature's Rainbows in March 2017.
Summary of luminescence responses:
Turneaureite (Mindat) (RRUFF)
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Yellow
- Fluorescence under Longwave (365nm LED) UV light: Orange
- Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red