446G Blue Window Fluorite, Quartz Fluorescent Combination Mineral Specimen #305

Description: YGX Blue Window Fluorite Clear Quartz Chalcopyrite 446 Gram Combination Fluorescent Crystal Mineral Specimen Yaogangxian Mine Hunan China with Shungite Slab Stand Locality: Yaogangxian Mine Hunan Province, China Weight: approx. 446.95 Grams Measures: 4.50'' (114.30mm) x 3.25'' (82.55mm) x 2.25'' (57.22mm) Yet another remarkable combination High Grade specimen from the World famous Yaogangxian Mine! This striking Cabinet specimen has pleasing accents of contrasting Blue Phantom Window Fluorite cubes with purple zoning and White Quartz. The lustrous glassy Cubes are so clear, you can see the landscape of the matrix behind them including purple Cubes within the blue cubes! The large quartz termination apparently broke off before mining, as there are 4 small well terminated Quartz points and matrix crystals that formed at that break point. On the glistening Drusy matrix crystals there are Chalcopyrite crystals, Chlorite, and an unknown orange mineral...possibly Wulfenite. As with most Fluorite, this specimen really shines under LW UV light, as it fluoresces a brilliant electric blue and also looks exquisite in daylight. It has a partially cut base, so it displays nicely on it's own. This piece has no visible damage accept one non-terminated small quartz point short of perfection! *** Also included with this specimen is a Shungite slab stand to display this fine specimen. Note: Be aware that being able to view fluorescent minerals requires an ultraviolet (UV) lamp. A LW UV 365nm was used for this specimen. A black light is not a UV light and in most cases fluorescent minerals will not fluoresce with a black light. ***I photographed this piece in a completely dark room using a Sony Alpha 7III DSLR Mirror-less Camera, a Sony FE-90mm Macro G Lens, and 3 - LW UV 365nm flashlights with included ZWB2 black filter glass. This gives me complete UV light coverage of the specimens I photograph for my listings. FYI...If you aren't using quality UV lights with filters to fluoresce any UV reactive specimens that you purchase from my shop, your results will vary. In short, you need a quality UV flashlight that emits a high-intensity ultra violet wavelength and the correct wavelength for the specific mineral you wish to fluoresce to result in a response. (LWUV 365nm Long Wave Ultra Violet Light or UVA, MWUV 310nm or UVB, & SWUV 255nm or UVC) Also the light needs to have a high quality ZWB2 or Hoya glass filter to allow the transmission of pure UV light through the filter while restricting natural light absorption. A dark room is also necessary for the best UV reaction. (Be aware that lower quality filters will eventually burn out due to the heat emitted by UV light, ultimately rendering the light useless and requiring replacement.) What makes minerals fluorescent? Ultraviolet light is a form of electromagnetic radiation. Fluorescence occurs when electrons in certain atoms of a crystallized mineral absorb the radiated energy from a UV light (Photons). The incoming photons bump the electrons into higher energy states, and they respond to the ultraviolet light. The remaining light energy is out of balance and remitted and can be seen as a visible color. The reason for the fluorescent remitted colors is due to impurities in the mineral, or activators; which become part of the mineral?s chemistry by taking the place of atoms in the host mineral, basically occupying the crystal lattice structure. A majority of activators are atoms of certain Rare-earth elements, transition metal elements (such as Chromium, Manganese, Iron, and Zinc) and alkaline elements (Sodium or Potassium) that cause the resulting fluorescence in a mineral. The level of fluorescence depends on the percentage of the impurities in relationship to the host atoms. Too much/little, results in low or no fluorescent response. Fluorite, is also known as Fluorspar, and is named for its fluorescence under ultraviolet (LW UV 365nm) and cathode-ray irradiation. Since pure Fluorite is colorless, the existence and specific levels of these impurities determine the color of Fluorite in natural light, but also lead to the fluorescent color and phosphorescence it remits. Thanks for looking! ~McGarnickel~ SKU:

Price: 3475 USD

Location: Vineland, New Jersey

End Time: 2024-09-06T18:56:04.000Z

Shipping Cost: N/A USD