History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c20.s4.t3.3

v1.c20.s4.t3.3

Kāsisa (sulphate of iron) is of two kinds vālukā and puspa. The former is of green variety and used in dyes, particularly in hair dyes. Manahśilā (Realgar) is of three kinds śyāmala of dark red colour, karavīraka of golden colour, manda in the form of powder of deep red colour. Sasyaka is a mineral found in five varieties of colours and is said to impart colour to minerals.²⁰