Australian UV Fluorescent Halite

Found this a the Bloomington, Indiana fossil and mineral show 2011.  CLICK HERE for more details.

Fun With Fluorescents

Smiley face made with uranium marbles under longwave ultraviolet (UV) light.

Two types of uranium marbles with a UV LED light for sale on eBay with FREE shipping: CLICK HERE

Franklin, New Jersey mineral with calcite glowing red-orange and the small specks of green (willemite) while being illuminated with longwave UV light.

Thunder egg from Oregon with quartz and agate(?) under white light and longwave UV light.

Calcite geode from Durango, Mexico under white light and shortwave UV light.

UV Light Fluorescent Calcite

This very fluorescent mineral specimen was found in Franklin, New Jersey.  When exposed to shortwave ultraviolet light it turns a reddish-orange (calcite areas).  The green specks are willemite.

Fluorescent Troostite and Calcite

Fluorescent troostite (green) and calcite (red) found in Franklin, New Jersey.  Thanks to Milt for letting me use his UV light.

Fluorescent Troostite

Pictures of the mineral troostite (variety of willemite) found in Franklin, New Jersey.  Thanks to Milt for showing me this specimen.

Fluorescent Wernerite (Scapolite)

This mineral produces a strong yellow color when exposed to longwave ultraviolet (UV) light. It is called wernerite a variation of scapolite. The label for this mineral lists it as being from Otter Bay, Canada. I could not find any reference to this locality but did find that scapolite was found at Otter Lake, Québec, Canada.


Specimen is approximately 4 cm x 4 cm x 3 cm in size.


H.C. Dake 1953 book The Uranium and Fluorescent Minerals describes wernerite 'is generally regarded as one of the strongest of all long wave mineral "fluorescents."'.


According to mindat.org this mineral was named in 1800 from Abraham Gottlob Werner (1749-1817) who was a German mineralogy professor.


It is for sale on eBay CLICK HERE

Fluorescent Fluorite from Rogerly Mine, England

The Rogerly Mine of England produces amazing UV fluorescent fluorite.  It is normal a green fluorite in visible light but take it outside in bright sunlight and it starts turning blue.  Longwave ultraviolet (UV) light turns this fluorite blue/purple.

Hardystonite - Franklin, New Jersey

This specimen was bought from the Franklin Museum at Franklin, New Jersey.  It was obtained October 10, 1970.  It has a great orange glow under ultraviolet light.

UV Fluorescent Calcite from Illinois

This is a nice piece of calcite that is almost cabinet size.  It has fluorescent activated sections almost entirely around the mineral when exposed to longwave ultraviolet (UV) light.

UV Fluorescent Fluorite from Illinois

Most minerals that I find that fluoresce under longwave ultraviolet (UV) light tend to be white calcite.  This mineral is an exception being yellow fluorite found in southern Illinois.  One side of reacts to the light by producing a yellowish lemon colored glow.

Fluorescent Calcite from Illinois

Fluorescent Willemite

Willemite Turned Green by UV Light

Fluorescent Willemite

Willemite mineral from New Jersey that turns green in ultraviolet light.

Orange Calcite

Orange calcite from Arizona that turns orange when exposed to ultraviolet light (254 nm).

Fluorescent Green Fluorite

Green fluorite from England that turns purple when exposed to ultraviolet light (254 nm).

Fluorescent Blue Calcite in UV

Calcite from Mexico that turns blue when exposed to shortwave ultraviolet light (254 nm)

New Jersey Calcite

Example of fluorescent calcite from Franklin, New Jersey.  A pink or red glow appears once specimen is illuminated with shortwave ultraviolet light (254 nm).

Willemite Mineral

Example of a fluorescent mineral from the famous Franklin, New Jersey locale.  This mineral is Willemite photographed under two different lights.  The fluorescence shows up under shortwave ultraviolet light (254 nm).

A picture of a piece of fluorite found during a mineral dig at The Ben E. Clement Mineral Museum.  The piece in everyday light is rather plain but expose it to ultraviolet (UV) light (395 nm).  UV light makes part of the mineral glow a whitish-yellow.