共 2 条
UPDATE ON GEMSTONE MINING IN LUC YEN, VIETNAM
被引:13
|作者:
Pham Van Long
[1
]
Pardieu, Vincent
[2
]
Giuliani, Gaston
[3
]
机构:
[1] Ctr Gems & Gold Res & Identificat Vietnam, Hanoi, Vietnam
[2] GIAs Bangkok Lab, Bangkok, Thailand
[3] Inst Res Dev Toulouse, Toulouse, France
来源:
GEMS & GEMOLOGY
|
2013年
/
49卷
/
04期
关键词:
HOSTED RUBY DEPOSITS;
AR-AR;
AGES;
D O I:
10.5741/GEMS.49.4.233
中图分类号:
P57 [矿物学];
学科分类号:
070901 ;
摘要:
In 1987, gems were discovered in the Luc Yen area of Vietnam's Yen Bai province. Ruby, sapphire, and spinel from primary and secondary deposits are the most valuable of these; tourmaline, gem-quality feldspar, pargasite, and humite are also mined there. As a result of this discovery, the Luc Yen district has become Vietnam's most important gemstone-trading center over the past 30 years. The markets of Yen The, the capital of Luc Yen, offer an additional assortment of natural gems from Vietnam and elsewhere (including peridot, beryl, aquamarine, topaz, and quartz); synthetic gems are also found in these markets.
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页码:233 / 245
页数:13
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