Ointment of Calamine.
Take of olive oil, a pint and a half; white wax, and calamine stone, levigated, of each half a pound. Let the calamine stone, reduced into a fine powder, be rubbed with some part of the oil, and afterwards added to the rest of the oil and wax, previously melted together, continually stirring them till quite cold.
This ointment, which is commonly known by the name of Turner's Cerate, is an exceeding good application in burns and excoriations, from whatever cause.
William Buchan
Domestic Medicine 2nd edition 1785