Monday, May 30, 2011
Sunday, May 29, 2011
Saturday, May 28, 2011
Tuesday, May 17, 2011
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.
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.
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Monday, May 16, 2011
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.
Sunday, May 15, 2011
Friday, May 06, 2011
Since this is Kentucky Derby weekend, it seemed like a good idea to post pictures of hats on display at the Louisville Science Center. These hats were carefully selected from the larger apparel collection stored at the Louisville Science Center. It is part of an exhibit entitled "Hats! Reflections in Time". All the hats have labels describing the specimen and listing the donor.
Since the Louisville's star attraction, The Kentucky Derby is on Saturday, May 7, 2011, the Louisville Science Center is closed so for visitors still in town on Sunday or beyond visit the science center and view this classy exhibit in the Discovery Gallery on the second floor.
Learn more that the Louisville Science Center web site.