EARTHS. SILICEOUS, 42. Gemma. 
145 
fiUj* 
Scar!, 
litesi 
Hard pellucid, lamellar, green, in 4-fided oblique pnfms 
wlmfe edges are varioully truncate and whole faces are 
Euckfius. La Metherie Journ.Phyf. 1792. P- > 55 * 
Euclafe. Thomjonchem. , „ . . Or-ch 
Found \nPeru; is very brittle and fufficiently hard to icratc 
quartz- texture foliated: fradure conchoidal : caufes dou- 
ble reftaaion : is fufible by the blowpipe info a white ena- 
J.o6ys. co...i«r.i.» 36. .!»».» .3. 
glucina 1 5. oxyde of iron 5. 
Hardilh, fomewhat ponderous, diaphanous, of a 
or yehowilh-whL colour which is not altered by the 
fire, not fufible per fe. 
Schoerlit. Klaproth chem. annal. 1704- 2 *A 39 '* 
Shorlite. Kirraian miner, i . p. 286. 
Shorlite. 1 homfon chem. Z- P- ^ In 
Found in and Saxony, with mica or . 
oblong maffes, which when 
frafttue uneven, and feem.ngly fomewhat f°bated . fpecific 
gravity 3,530, contains alumina so. filica 50. Klaproth. 
Hard, of a blue-green colotrf, not altering Its colour or 
fufible by heat, of a conchaceous texture which is 
fo iated iicn broken tranfverfcly, _ in 6-iided pnfms 
which are ufually longitudinally Itriate. 
Beryllus. Cromto nun- 42- 2, 
Beryil, Kirnvan mintr- i. /*• 24^* _ 
Beryll. Scbme'JJer i.p.Gb. rhomfon dem. 3. p. 557 - 
Found in the mountains of Saxony, Stberta, &c. 
GrLie Wolfram, and other matrices : its cryftals are of 
various magnitude, fometimes diaphanous Pf/'|: 
cic rarely folitary or in pairs, generally aggregate or fofci- 
e'ed • eSur apprWhing to green or blue, rarely to yellow; 
foedfic graiitffrom 2,25°- ^ 
proportion of alumina, lime, and iron. 
^hfoberyl. Hard, pellucid, green, highly (hining internallyy of a 
'*'■ conchaceous texture. 
Chryfolitnns. Wall. fyit. min. i.p. «• o. c. 
Chryfoberyll. Kirwan mineral, i.p. 261. 
Chryloberyl. Rhomfon chem. 3. p - r 
Found in Bralil and Ceylon, in round “^ffes about he fiz.e of 
nea or mftallized; the form of its cryBals being a g lided 
rca’an-uUr prifm, the molf common variety of which is an 
S-hded prifm terminated by 6-fxded fommits; 
lowifli-gLn, with a iparkling forface : 
with the foliations parallel to the faces of the prifm . caules 
VOL. Vlf, — T 
