Emeralds of Brissac
I took minium, 26 ℥, crystal […] and ground on marble 12 ℥, verdigris 3 |ʒ|. Incorporated all together. Put in a crucible covered by another well luted crucible with a hole on top. Melting: 7 hours without blowing. The mass came out a fine green.
I took minium, 12 ℥, crystal, 6 ℥, verdigris, 2 grains. Melting: moderate, vi hours, baked 24 hours. The mass came out green, yellow and red.