People following the kanase tradition, which allows women and children to search a mines tailings and to take any gems that have escaped the machines...
Following the old kanase tradition, which allows women and children to search a mines tailings and to take any gems that have escaped the machines...
Woman from Baw-lon-gyi village washes leftover marble rocks to gravel to extract the very last pieces of ruby and spinel.
Woman from Baw-lon-gyi village reduces leftover marble rocks to gravel to extract the very last pieces of ruby and spinel.
Miner, who has fixed incense sticks dedicated to the spirits on the wall behind him, waits for his colleagues to be pulled up to the main gallery.
Water flows from a pulsating jig which uses the differences in density to separate gems from other material in byon .
Pipe moves byon to a pulsating jig, which uses the differences in density to separate gems from other material.
Workers remove stones from a pulsating jig, which uses the differences in density to separate gems from other material in the byon .
Metalwork spectacles with a single lens for a watchmaker or gemologist from the early 1900s. 20th century.
The hand of a General Electric scientist is pouring manmade diamonds into a container for presentation to the Smithsonian Institution. The plaque...科學家
Dr. Herbert Strong and J.E. Cheney, scientists at the General Electric Research Laboratory, use a 1,000 ton press capable of delivering pressures...實驗室
Plate from Treaty of Crystallography, by Rene-Just Hauy edition published in Paris, France. Milan, Museo Civico Di Storia Naturale
