History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c27.s1.2

c27.s1.2

Mica, the layers of which can be easily detached, is preferred. Mica, which is as bright as the moon and which has the lustre of the rust of iron, does not take up or combine with (lit. swallow) mercury. That which has taken up mercury can alone be used with the metals and administered in medicine. Mica, which has been killed, is prescribed in the treatment of various diseases. The variety, which has the lustre of the moon, if taken internally, brings on dyspepsia and urinary disorders.