3^7 
METALS. 96. Magiicfium. 
maF be obtained fram an ounce of sbe osyde : it 
from ao to 45 per cent, of oxyde of roanganefe, from 3 
nate of liinej barytes and mica. 
"rjra. Soft, ftaining the fingers, Wact whh hardly any lufire. 
Magnelw fcoriaeea. Cronfi 116 2. a. 
Magnefia fcoriacea. ^ 
Black or brown roanganefe. Kryaan^cr ■ P- 9 * 
Biack calciform manganefc. Z<hmcr£^^n. *- /■■ *> 3 - 
Black ore of inaneanefe. Thomfan them. 4. ?- « »*• 
Found commonly in 
,bc (»rfK.. c.««ie «>i.hr. f'r.S'E^Sra 
rKoidal • in its compofuion K refembles the laft, but conta. 
more L. : L cry^als are ufually 8-fided pnfms wnh them 
faces finoath. 
HardiOi, fiaining the fingers, blackiOi, flfintng internally, 
becoming red when heated. 
Magnefia compaAa. Wail Jyfi. i . p- ZIO. n. 
Pei iaord done. Kimuan mineral. Z. p. 2 ^^- 
Found at Perigor^ in Fr««'e, fold's, ofa eompaft 
brownifti-black colour: when heated u hardens and becomes 
reddifh-brown, bat not magnetic, and gives a red or viole. 
tinge to boux: befides manganefe it contains alumina and 
iron. 
Pale rofy red, foliated, not fiaimng the fingeis, eafily 
melting with effervefcence. 
Red ore of manaanefe. Kirwan mtntra .Z. p. 297. 
Reddifti-white ox' dated manganefe. &hmeijjer 2. p. 254. 
Red ore of manganefe. ThinJ^ chem. i,.p. wz. 
Found in the Hagyag mines of 7 ranphvama, where it is the uia- 
^ trix of eold, and near Kapnik in Hmigaiy, inafuve, loofe, 
difl'eminated, or imitative, fometimes cryllaliized in rhom- 
Sal prifms or needles: texture foliated in thin incurved 
kvers. with the fragments often fplmtery cdoor pak rofy 
red mixed with white, powder whitifll : it cfFervelces with 
nitric and muriatic acids, becomes reddifh-brown when 
heated to rediiefs, and ttngrs borax red : fpecihe B^^ity 
Vz-t: contains, filica 55. oxyde of manganefe 35, oxyde 
ti\ iron 7, about z of alumina. Rupreebr^ 
Qjl 2 
