jana,—these are the eight mahārasas." [Vide p. 79 and "Explanatory Notes on Minerals."] VII. 2-3
Copper from the pyrities.
"Mākshika, repeatedly soaked in honey, oil of ricinus communis, urine of the cow, clarified butter and the extract of the bulbous root of musa sapientum, and heated in a crucible, yields an essence in the shape of copper." VII. 12-13
"Vimala, digested with alum, green vitriol, borax and the watery liquid expressed from moringa pter., musa s., and finally roasted in a covered crucible in combination with the ashes of schrebera swiet, yields an essence in the shape of chandrārka[1] (lit. copper of gold-like lustre.)"
Chapala: [See under r. r. s. Bk. ii.] VII. 20-21
Brass from Calamine and Copper Mistaken for Gold.
"Rasaka: There are three, kinds of it; namely of yellow colour, of the appearance of treacle, and
- ↑ r. r. s. has borrowed this description and added some more characteristics of the mineral, from which it would appear that "Vimala" is also a variety of pyrites. [Vide r. r. s. Bk. ii.]
