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<<Back to Main Gemstones Carvings Gemstones Carvings  |  Agate Agate  |  Amethyst Amethyst  |  Apatite Apatite  |  Beryl Beryl  |  Chalcedony Chalcedony  |  Chrysoberyl Chrysoberyl  |  Danburite Danburite  |  Diopside Diopside  |  Enstatite Enstatite  |  Fluorite Fluorite  |  Hackmanite Hackmanite  |  Inclusion Gemstones Inclusion Gemstones  |  Jade Jade  |  Maw sit sit Maw sit sit  |  Moonstone Moonstone  |  Peridot Peridot  |  Ruby Ruby  |  Sapphire Sapphire  |  Scapolite Scapolite  |  Spinel Spinel  |  Topaz Topaz  |  Tourmaline Tourmaline  |  Zircon Zircon  |  Other Burmese Gems Other Burmese Gems  |  Garnet Garnet
Our Top  Hackmanite  Highlight Hackmanite
Hackmanite Cabochon, Mogok, Burma
 
GWA0527
Hackmanite Cabochon
$ 3.00
1 pcs   9.75 cts
Hackmanite Cabochon, Mogok, Burma
 
FC0264
Hackmanite Cabochon
$ 5.00
1 pcs   11.90 cts
Hackmanite Cabochon, Mogok, Burma
 
GWA0535
Hackmanite Cabochon
$ 5.00
1 pcs   12.05 cts
Hackmanite is a very special and rare variety of sodalite. This amazing mineral possesses the ability to change color when exposed to ultraviolet radiation (both UV from a UV lamp and UV from the direct sun). This phenomenon, known as tenebrescence, is a reversible photochroism. In other words, the color change is not permanent and can be repeated indefinitely. However if the stones is heated, its ability to change color is destroyed. Typical color changes for rare Burmese hackmanites specimens are from colorless, light pink, blue or purple to intense blue or deep purple. According to the quality - i.e. purity - of the hackmanite specimen, the color change is naked eye visible in few seconds, whereas the return of the initial color may take between hours and one week when stored in a complete dark area. The most sought after specimens are those with a color change from colorless or very light color to intense deep purple.
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Sapphire, Ruby, Burma Gems, jewelry, tourmaline, spinel,topaz, emerald, jade, apatite, gemstones, agate,amethyst, crystals, cabochon, mogok, gem carvings,moonstone, tourmaline, zircon, aquamarine, namya, mong shu, burma, Myanmar, Burmese,cut, matrix, colored stone, precious, mineral, gemstones, unusual gemstones, unheated ,Pearl, Onyx, Diamond Earrings, Cabochon Tourmaline