Tuesday, May 31, 2011
Monday, May 30, 2011
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.
Sunday, May 29, 2011
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.
Saturday, May 28, 2011
Fluorescent Troostite
Pictures of the mineral troostite (variety of willemite) found in Franklin, New Jersey. Thanks to Milt for showing me this specimen.
Friday, May 27, 2011
Thursday, May 26, 2011
Wednesday, May 25, 2011
Tuesday, May 24, 2011
Monday, May 23, 2011
Friday, May 20, 2011
Thursday, May 19, 2011
Wednesday, May 18, 2011
Tuesday, May 17, 2011
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
