EARTHS. TALCOSE. 2. Serpentinus. 
65 
' micaceous particles : does not diffufe itfelf in water, but gra- 
dually crumbles to pieces : is brittle and too hard tor writing, 
but is made into utenfils for holding water : contains lilica 
38. magnefia 38. alumina 7. iron 5. carbonate of lime 
i- fluoric acid 1. Weiglib. 
‘‘bittosum. Shining, fomewhat flexile, lamellous, breaking into flates. 
Slorr". Alfenr, Z- p 285—289. 
Found in the country of the Gryfons among the Alpr. colour 
white, or greenifli white, greenifli, or gre^ ifh-green, blood, 
red, or dull red. It is ufed for covering houfes. 
2. SERPENTINUS. Confifting of carbonate of 
magnefia, oxyde of iron, and filica, with fre- 
quently a mixture of alumina, rarely of calcare- 
ous earth: dry and harlh to the touch, receiv- 
apolilh; hardening in the fire; neither effer- 
vefeing with nitric acid nor abforbing oil. 
^^phriticHs, Leek-green, femipellucid, a little greafy to the touch. 
Talcum prtepoliendnm viride. S’-//, nut. xn. 53 ’ 7 * 
Jade. Nephric, Kirwan. mineral, I. p, 17** 
Nephrite. Jade. Schmeijfer, i.p. 200. Thompt 3./. 581. 
Found in Egypt, America, Snxieaen, Saxony, Bo/jemia, and the 
Siberian and Hungarian mountains; fometiines adhering to 
rock.', and fometimes in detached rounded pieces i colour 
dark leek-green, with olten a blueilh calt: is very hard, and 
does not melt in the ftrongcll fire: contains lilica 47, car- 
bonate of magnefia 38. iron 9 alumina 4. carbonate of 
lime 2. The inhabitants of Nenu Zealand ufe them for hatch- 
ets and other cutting inllruments. 
&nuinus, Opake, without luftre, of fplintery fradure, becoming 
w'hiter in the fire. 
Talcum prxpol. viride-maculat. Syjl, nat, xii. 3. p, 52. «. 6. 
Serpentine. Ki'nioan mineral. 1. p. 156. Schmei£er. l,p, 1 99* 
’Thomf. themift, 3. p 580. 
Found ir^moft European mountains, generally in large amorphous 
mafles: colour blackilh, leek, olive or canary green, yellow, 
red, grey, brown, white, or blue; one fpecimen generally 
exhibiting a mixture of leveral colours like the Ikin of a ler- 
pent: when breathed upon frequently emits an earthy fmell: 
contains magnelia 34, 5. lilica 28, o. alumina 23, o. oxyde 
of iron 4, 5. lime 0,5. water 10,5. Chenevix. 
Green, of a flaty texture. 
Chloritlhiftus. SchmciJJer mineral, 'x, p, 
VOL. VU. — I 
