Bb: Vintage Fluorite From Bluffton Quarry, Ohio - 3 - Color Fluorescence
Item History & Price
| Reference Number: Avaluer:44891258 |
NOTE: Postal delays caused by the pandemic are affecting delivery of parcels. In the USA, most delays are minimal. Shipping to other countries is currently taking at least several days to a week longer than usual. Please keep this in mind while bidding.Species: FluoriteLocality: Bluffton Stone Company Quarry, Bluffton, Allen Co., OhioSize: Miniature - 4.0 x 1.7 x 1.7 cmWeight: 11.9 gNumber: 2110
Details: This little killer specimen is a prize. The fluorite cubes... look pale to medium brown but when observed closely with a light, they are actually phantoms with central zones of brown surrounded by a clear outer layer. The effect shows up much better under longwave UV; the cores show various shades of warm white to cream color, while the outer layers fluoresce blue (unusual in Ohio fluorites). The massive fluorite layer under the crystals glows bright butter-yellow to white under all UV wavelengths, . This connoisseur's classic Midwestern locality has been closed to collecting for nearly 20 years.
NOTES ON ULTRAVIOLET:The higher quality the UV source, the better fluorescent minerals look. Key factors include lamp wattage, UV spectrum and filtration, as well as distance from lamp to specimen. For best results with any UV source, observe against a dark, non-fluorescent, non-reflective background, in complete darkness with eyes adapted. For extended viewing, use protective UV-absorbing goggles. The photos here are taken using UV Systems SuperBright II (shortwave-254, midwave-312, longwave-351), Convoy/Nichia (longwave-365) and Philips BLB (longwave-368) lamps, metered and exposed to show fluorescent response to best advantage. ° ° ° ° ° Please read before bidding! ° ° ° ° °* For combined shipping of Auction Items, send a message! I will hold auction items up to 2 weeks. Please WAIT for invoice before paying. Once paid, I must ship quickly or my rating suffers.* For combined shipping of Buy It Now items, please Add items to Cart and Request Total for a quote. * Payment is due within 7 days of invoice unless other arrangements are made. PayPal is preferred. * Send a message for details, especially for shipments outside the USA.
International customers: * US Post Office policy makes economical shipping a challenge. Price increments for packages are as follows: First class up to 225 g, then 225-900 g, then 900-1350 g (Canada only). Higher weights require Priority Mail. I always try to make shipping as cost-effective as possible. Please send a message so we can work things out.* Please note that import duties, taxes or charges are not included in the item price or shipping fees and are the buyer’s responsibility. While most countries do not charge duty on mineral specimens, you should check in your own country to be sure before bidding.
Details: This little killer specimen is a prize. The fluorite cubes... look pale to medium brown but when observed closely with a light, they are actually phantoms with central zones of brown surrounded by a clear outer layer. The effect shows up much better under longwave UV; the cores show various shades of warm white to cream color, while the outer layers fluoresce blue (unusual in Ohio fluorites). The massive fluorite layer under the crystals glows bright butter-yellow to white under all UV wavelengths, . This connoisseur's classic Midwestern locality has been closed to collecting for nearly 20 years.
NOTES ON ULTRAVIOLET:The higher quality the UV source, the better fluorescent minerals look. Key factors include lamp wattage, UV spectrum and filtration, as well as distance from lamp to specimen. For best results with any UV source, observe against a dark, non-fluorescent, non-reflective background, in complete darkness with eyes adapted. For extended viewing, use protective UV-absorbing goggles. The photos here are taken using UV Systems SuperBright II (shortwave-254, midwave-312, longwave-351), Convoy/Nichia (longwave-365) and Philips BLB (longwave-368) lamps, metered and exposed to show fluorescent response to best advantage. ° ° ° ° ° Please read before bidding! ° ° ° ° °* For combined shipping of Auction Items, send a message! I will hold auction items up to 2 weeks. Please WAIT for invoice before paying. Once paid, I must ship quickly or my rating suffers.* For combined shipping of Buy It Now items, please Add items to Cart and Request Total for a quote. * Payment is due within 7 days of invoice unless other arrangements are made. PayPal is preferred. * Send a message for details, especially for shipments outside the USA.
International customers: * US Post Office policy makes economical shipping a challenge. Price increments for packages are as follows: First class up to 225 g, then 225-900 g, then 900-1350 g (Canada only). Higher weights require Priority Mail. I always try to make shipping as cost-effective as possible. Please send a message so we can work things out.* Please note that import duties, taxes or charges are not included in the item price or shipping fees and are the buyer’s responsibility. While most countries do not charge duty on mineral specimens, you should check in your own country to be sure before bidding.
