Some pre­cious stones found in Asia

Asian Geographic - - SCIENCE -

PAK­ISTAN

Ruby (Dir re­gion), emer­ald (Swat Val­ley), aqua­ma­rine, topaz, tour­ma­line (Gil­git Baltistan)

MYAN­MAR

Ruby, sap­phire, spinel (Mo­gok), jadeite, jade (Hpakan), am­ber (Tanai)

THAI­LAND

Sap­phire, spinel, di­a­mond, corun­dum

VIET­NAM

Ruby, sap­phire, spinel, tour­ma­line all from Luc Yen, near the north­ern bor­der with China

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