442 TALC GENUS. Obfcrvation• On one fide it (by reafon of its fibrous fradure), borders on amianth, on the other on meerfchaum. SECOND SUBSPECIES. Amianth. Amianth.—Werner. Afbeftus matures. Wall. t. i. p. 4 ic._Ami 2 nth U s, II p. 408—Amianth, Wid. f. 464. Id. Kirvo. vol 1 p. 161. EJlner.b. 2. f. 368. Id. Emm. b. 1. f. 402—Amian- t«o Nap. P . ^6.—Lam. t . 2. p. 365.—.L'amianthe brock, t. 1. p. 49 j. External Characters. Its rncfl: common colour is greeni/h white, of dif ferent degrees of mtenfity, paffng into greeriilh grey and light olive green ; l'oinetimes Jalood red, particu larly when it occui 3 venigtnous in ferpentine. Generally