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Fluorescent Cabochons - cabs made from minerals that fluoresce in either short-wave (SW) or long-wave (LW) ultraviolet light. Some pieces are free-form and suitable for wire-wrap jewelry or simply for collecting; others (where indicated) are standard sizes for mounting in various jewelry findings. To see the fluorescent colors, you need a special ultraviolet lamp. For most pieces you will need a Short-Wave (SW) unit, which puts out a wavelength of 254 nanometers. Item in picture is the same one that's for sale. Each cabochon or piece of jewelry is a unique item. Stones are natural in origin; in a few cases (where noted) stone may be treated with epoxy to fill small pits or strengthen it. Normally, however, we prefer not to treat stones.
Bustamite & Willemite with Andradite, etc. - Franklin, NJ. In SW only the willemite responds (bright green). However, LW (350 nm) gives a pleasant surprise: the bustamite glows bubble-gum pink, with the willemite responding green. The color combination is reminiscent of watermelon. Photo shows piece in LW. We do not have a daylight photo available. The piece appears ivory- or marble-white in daylight, with dark honey-brown spots (andradite) and some black veining This is one of only 4 or 5 cabs that came from a single rock. We haven't seen material quite like it before or since. Large oval cabochon, max. dimensions 40 mm x 30 mm #CT1106 ... $35.00
Hardystonite & Calcite with minor Willemite - Franklin, NJ. Tapered freeform. Beautiful SW 3-color. Size: approx. 20 x 35 mm. #CT1114 ... $32.00
![]() Willemite & Calcite - Franklin, NJ. Angular freeform. This willemite is green in natural sunlight due to FL response caused by the sun's UV. Perhaps not coincidentally, it is also FL in LW to a considerable extent, though it is brighter and more vivid in SW. FL photo shows piece in SW. Size: about 33 mm (widest) x about 40 mm (tallest) #CT1112.... $18.00
Willemite & Calcite - Franklin, NJ. Tapered symmetrical. This willemite is green in natural sunlight due to FL caused by sun's UV. FL in LW but better in SW. Size: about 45 mm (widest) x about 37 mm (tallest). #CT1113... $20.00
Willemite & Calcite with Glaucochroite, etc. - Franklin, NJ. Freeform. This is primarily a SW-piece, with willemite (green in SW) and calcite (red-orange in SW). There are beautiful daylight colors in here as well, thanks to the willemite ("grape" red-purple) and rhodonite (pink). The glaucochroite also appears either pale lilac-purple or blue-gray, depending on whether it's viewed under incandescent or white fluorescent light. Size: about 20 mm wide x about 33 mm long. #CT1092.....$20.00 Browse our selection of additional cabochons: Agate and Jasper cabochons Exotic Mineral cabs Fluorescent cabochons (you are on that page now) Various - other ornamental and semi-precious cabs Jewelry made from unusual cabochons Please note: Minimum Credit Card order is $20.00
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