Khao Phloi Waen, Chanthaburi Province, Thailand

In 1850 corundum was first discovered in the cone-like top of what became "Gem Mountain" in Khao Ploi Waen, 8 km SE of Chanthaburi.

Ref: E.Ya. Kievlenko (2003) Geology of gems, p. 44

Gemstone List

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