 | | Journal (issue) | | Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam Le Thi-Thu Huong, Wolfgang Hofmeister...quartz • Indian scapolite • Spinel from northern Vietnam • Gem zektzerite • “Coral Sea” agate • Dendritic...from Tanzania • Scapolite from Afghanistan • Tourmaline from Mt. Marie, Maine • Imitations of trapiche...30. Mocquet B., Lulzac Y., Rondeau B., Fritsch E., Le Quéré J., Mohamady B., Crenn G., Lamiraud C., Scalie...grenats démantoïdes d’Ambanja, Province d’Antsiranana, Madagascar. Le Règne Minéral, Vol. 90, pp. 41–46 |  | | Journal (issue) | | the Tan Huong–Truc Lau Area, Yen Bai Province, Northern Vietnam Nguyen Ngoc Khoi, Chakkaphan Sutthirat...Nhung Although not as well known as the Luc Yen district, this area is an important source of ruby and...Afghanistan • Ammonite from Madagascar • Aquamarine from Vietnam • Chalcedony from Peru • Afghan emerald mining...characteristics of r uby and sapphire from Yen Ba i Province, in nor thern V ietnam. There is an ar ticle by...THE TAN HUONG–TRUC LAU AREA, YEN BAI PROVINCE, NORTHERN VIETNAM Nguyen Ngoc Khoi, Chakkaphan Sutthirat |  | | Journal (issue) | | Alice S. Keller Rubies and Fancy Sapphires from Vietnam Robert E. Kane, Shane F. McClure, Robert C. Kammerling...have emerged from new deposits in Tanzania and Vietnam that closely resemble Burmese stones and probably...sapphires illustrated here, all reported to be from Vietnam, are representative of some of the fine material...changing economic outlook of countries such as Vietnam and Tanzania, promises both new markets and new...to the discovery of a new ruby occurrence. In Vietnam, we are seeing the identification of major deposits |  | | Journal (issue) | | Collection no. 32510; and (8) a 13.94 cuprian elbaite tourmaline from Mozambique, courtesy of Pala International...instrumentation such as LA-ICPMS—once primarily the province of academia—became a fixture in many gemological...were combined under the jurisdiction of the U.S. District Court of New Jersey 168 PRODUCTION AND MARKETS...(Mayerson and Laurs, 2004), as well as cuprian tourmaline (from Africa), thanks to the discovery of new...in world markets, red spinel and pink-to-red tourmaline became sought-after alternatives. In GEMS & |  | | Journal (issue) | | 4.82 ct purple sapphire, (10) 5.32 ct Paraíba tourmaline, (11) 2.16 ct demantoid, (12) 1.05 ct emerald...included: Southeast Asia (Myanmar, Thailand, and Vietnam), Africa (Tanzania, Kenya, Zimbabwe, Nigeria, and...peridot, quartz, spinel, tanzanite, topaz, and tourmaline). Locality information is both summarized in...and southern Asia (Thailand, Cambodia, Myanmar, Vietnam, and Sri Lanka; again, see figure 1). Although...example. Tourmaline—Pink. For a period, pink was popular. In the early 1990s, prices of pink tourmaline rose |  | | Book | | Zealand Bibliography-New Zealand 384 N igeria Vietnam 385 Characteristics of Nigerian sapphire Bibliography-...(Bu Khang District) 475 Other Vietnam corundu.n1 localities 478 Mining methods in Vietnam 480 Characteristics...industry: Thoughts on the future Bibliography- Vietnam 48 1 385 Norway 385 Pakistan 385 Zaire (formerly...above the cab and so Tclimbed up to stretch ouc. le was there chat I completed the journey, amidst the...bigger Mac head than I. • Philippe Braudeau, RSA Le Rubis SA, France, for donations of synthetic corundums |
|
