EARTHS, argillaceous. 31. Argilb. 11.7 
Cimolia. Pearl-grey, becoming reddifli when expofed to the air, 
adhering (Irongly to the tongue, not itaining, becom- 
ing white before the blow-pipe. 
Cimolittf. Ihomfcn chem. 3. p. 556. 
Found in the ifto of Ar.er^tiers, in the Archipelago, where it ir 
' ufed for whi'eninj; ftiiffs: texture earthy, tfaduie uneven, 
opake, foft, freaking wijh difficulty : fpecific gravity 2,occ. 
contains filica 63,00. alumina 23,00. iron 1,25. water 
12,00. Klaproth. 
cininsii. Rather meagre to the touch, rufous variegated w'ith ocliya- 
ceoiiS dots and fpots, fofteniiig in water. 
Argilla fltvcfcens. S^ll. nat. xn. 3 .s. 201.?;. 4. 
Poiiershitf. r. Themiov chem 3. /’•537 '^ 
Found near Montma' te it: France, and in China, where it conlli- 
tuies the f’il upon which cotton, rice and indig'-' are cidii- 
vatcc! ; it is ufed in the making pf bricks which etc iiitcn. ed 
to be under w.tter. 
^tcirica. Soft, Paining, adhering to the longtie, red, brittle, do:? 
not become duftile in water, of an earthy texture. 
Talcum lubliffile. SyU, nat. xii 3. a. 3. 
Ochra fern rubra. Wall. fill. min. z. p. 2&0. a. 22. c. 
Red. Reddle. Kiravan miner'll 1 .^- 193- 
pound in Sil'eria, Dalccarlia, Bohemia, Portugal, and France, 
generally among iron ore, with whicn it cu.ruuonly abouiu.s . 
colour dark cochinelie red, or intermediate betw'ecn brick ai.d 
blood-red: fraclure earthy, lometunes cgnchqidal: leeis 
rough, aflumes a polifh from the nail, flrongly ftains the lin-^ 
gers, adheres to the tongue, falls immediately to^ powder in 
water, does not effervefee nor eafily d flolve in acids, crack.es 
and grows black when hc.sted 19 rcdnels, and raells at Lil into 
a dark gresnifh-yellow frothy enamel. 
(“tea Very foft, Paining the fingers, adhering to ilie tongue, 
ochreyellow.' 
Gelbe erde. Hcjfmann Berg. 'Journ, 1788, p. 521. 
Yellow ochre. Kirnann mineral . i. p. ig4- 
Found near IPehrau: feels Imooth or iomewhat greafy' . Ir.n .ure 
earthy, or inclinmg to the conch ddal t aoheie.s llrnngly to 
the tongue, takes a high polilh from the nail, and liroiiglv 
ftains the fingers: falls immediately to piece.s in water, with 
fome hifling, afterw-irds to powder, but does not diftuic it- 
felf thiough it: does not cffrrvefce with acid-, or calily dif- 
folye in them : heated to redr.efs it crackles, hardens, ac- 
quires a red colour, and gives a reddifh llreak, and melts at 
laft into 3 liver-brown porcelain mafs: contains alumina 
50. oxyde of iron 40. water acidulated by lulphuiic acid 
10, 
