Large Fluorescent Calcite And Willemite, Franklin Mine, Franklin, Jersey
Item History & Price
| Reference Number: Avaluer:15858473 | Country/Region of Manufacture: United States |
| Fluorescent Minerals: Willemite, Calcite | Location: Franklin, New Jersey |
This high-end, brightly fluorescent specimen was recently acquired from thecollection of Marv and Kitty Starbuck, and consists of large crystals of red-tanwillemite and smaller black franklinite crystals in a light tan coloredgroundmass of calcite. This piece is atits best under short wave UV, with the willemite showing bright greenfluorescence with bright and lasting phosphorescence, and the calcite glows asubdued magenta color. The frankliniteis not fluorescent. Thi...s piece alsoshows a dimmer response under long wave UV. This specimen measures approximately 8 x 4.5 x 2 inches, and weighs 3.9pounds. The fluorescent photographs wastaken using 18 watt short wave (254nm) and long wave (365nm) UV lamps.
As is the case with all fluorescent mineral specimens, a good quality UV lamp of adequate output and appropriate wavelength (short wave vs. long wave) is required to see the fluorescent response depicted in the photographs. An ordinary "black light" will not work for these minerals.By request, I will combine shipping on multiple items and for multiple winning bids within 7 days. If you wish to combine shipping, please let me know and do not submit payment until you receive a combined invoice with the shipping discount.E-54
As is the case with all fluorescent mineral specimens, a good quality UV lamp of adequate output and appropriate wavelength (short wave vs. long wave) is required to see the fluorescent response depicted in the photographs. An ordinary "black light" will not work for these minerals.By request, I will combine shipping on multiple items and for multiple winning bids within 7 days. If you wish to combine shipping, please let me know and do not submit payment until you receive a combined invoice with the shipping discount.E-54
