History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c20.s3.t3.24

v1.c20.s3.t3.24

Metals like gold and silver were also used as colouring materials. The method of preparing gold pigment is mentioned. Gold ore should be pounded well on a stone and adding water to it in a glass container or in a bronze one, it should be shaken slowly again and again. While shaking, the water should be removed by stages until all the dusty particles are removed.