Bo Phloi, Bo Phloi District, Kanchanaburi Province, Thailand

The centre of sapphire-bearing region. It is 44 km north of Kanchanaburi, where the production of sapphire began in 1921.

The sapphire-bearing placer deposits occupy an area exceeding 70 sq km, occur in layers of sand and gravel 10 to 15 cm thick at depths of 5 to 15 m from the surface. Spinel, pyroxene and garnet are common.

Ref: E.Ya. Kievlenko (2003) Geology of gems, pp. 45, 66

Gemstone List

Gem list contains entries from all listed localities in region.

Corundum
var: Sapphire
Garnet Group
Spinel
Spinel
var: Pleonaste

Localities in this Region

Thailand
  • Kanchanaburi Province
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