Vietnam Gemstones; Hanoi Rocks - GemSelectMay 19, 2016 . Vietnam has pearl farms and several gemstone deposits such as ruby, sapphire, spinel and tourmaline, from the far north to the south. . miners, who would otherwise have to sell tiny or low-quality stones at very low prices.sell the tourmaline in vietnam,Update on Gemstone Mining in Luc Yen, Vietnam | Gems & GemologyIn 1987, gems were discovered in the Luc Yen area of Vietnam's Yen Bai province. .. rounded rubies hosted in placers (right) are sold in the Luc Yen gem market. . Gem-quality feldspar, found with tourmaline in weathered pegmatites in the.Gemstones in Vietnam — Palagems1 Center for Gem and Gold Research and Identification, Hanoi, Vietnam . of rubies and star rubies were exploited illegally and sold to foreign dealers. ... Deposits of other minerals such as spinel, tourmaline, quartz crystals are widely.
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