The Natural History of Pliny, Volume 6 (of 6) by the Elder Pliny

[932] The colour now known by painters as Emerald green. [933] As a “trigarius.” See B. xxviii. c. 72, and B. xxix. c. 5. From Suetonius, c. 18, we learn that the Emperor Caligula, also, had the Circus sanded with minium and chrysocolla. Ajasson is of opinion that the chrysocolla thus employed was a kind of yellow mica or talc. [934] “Arenosam.” He alludes, probably, to the kind previously mentioned as “aspera” or “rough chrysocolla.” [935] For its identification, see B. xxxiv. cc. 26, 32. [936] See B. xxxv. cc. 12, 18. [937] Making a spurious kind of “lomentum,” possibly, a pigment mentioned in c. 57 of this Book. This passage seems to throw some light, upon the words “in lomentum,” commented upon in Note 929 above. [938] As to durability, probably. [939] It was the mineral, probably, in an unprepared state. [940] Gold-glue or gold-solder. [941] See B. xxxi. c. 46, as to the “nitrum” of Pliny. Galen, in describing the manufacture of “santerna,” omits the nitre as an ingredient. [942] “Argentosum.” The “electrum,” probably, mentioned in c. 23. [943] As to the “cadmia” of Pliny, see B. xxxiv. c. 22. [944] “Plumbum album.” Tin, most probably. See B. xxxiv. cc. 47, 48,