The top documents tagged [sapphire deposits]

VAMIN_VOL17_NO01

VAMIN_VOL17_NO01

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THAILAND’S RUBY AND SAPPHIRE DEPOSITS In lateritic soils atop Plio-Pliestocene basalt, or in gem gravels derived from basalt. Deposits are about 6-20'

THAILAND’S RUBY AND SAPPHIRE DEPOSITS In lateritic soils atop Plio-Pliestocene basalt, or in gem gravels derived from basalt. Deposits are about 6-20'

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