268 MiJ-TALS. 8j- Ferrua). 
Cuprum facie Carbonaria. Wall.fyji, z. p. 28-. «, 1-, 
C ’mbuftible Copper ore. Kir-wan miner. 2. p. i 
Biiuminous Copper. Uchmeifer mintral. Z. 14^. 
Pitch ore. ThomJ'''n them. 4. p. 45. 
Found in Dalecuriia in 'Sweden and in Siberia, and rcrcrnbies * 
piece of coal nr bituminous ihift: it confiHs of bituminou- 
coal or (hale impregnated with oxyde of copper : the oie 
extrafted from the a(hes with conlideraUe difficulty. 
85. FERRUM. Bluifh-grey, eafiiy ruling in the 
ail, very hard, tenacious and elaftic, ionorous. 
exceedingly malleable, dtiftile, atcrafted bv d-<^ 
magnet and itfelf convertible into the magnet, 
fpeclfic gravity 7,778: becoming white in the 
fire, then emitting brilliant I'parks, and at laft 
melting, forming a red oxvde when its filings 
are kept red hot in an open velfel and fiirred : 
foluble in all acids, giving them an allringent 
tafte and a black colour when mixed with vege- 
table aftringents, precipitating a green powder 
when diffolved in fiilphuric acid and mixed with 
potafs, with the pruffic acid producing a rich 
azure- blue. 
nati’vum, Uncombined, malleable. 
Ferruni nudum. Syft.nat. xii. 3./. 136. n. 1. 
Ferrum nativum. Wall. fist. 2. p. 233. ». 1. 
Native Iron. Kirwan miner, z. p 156. 
Nxtivelron. Sehmefier miner. 2. p.^2. 
Native Iron ‘Thomjon them. t. 50. 
This moft ufeful of all metals, the continual attendant on inaH 
in all his Hates of focial exillence, which to the labourer and 
the mechanic gives his tools, to the foldier his arms, to the 
fail 'r his comp fs, and to the fcholar his penknife and ink, 
is very rarely if ever found in a native uncombined (late: 
moll of thofe mafl'es which have been found in ..4meri(‘t, 
Siberia, Sec. feem more properly to belong to the mct.orii; 
kind, as they all contain a portion of nickel ; though Mr* 
Kirwan thinks that it has, beyond doubt, been deleted 3C 
Bibenfiock in Sweden, and in the mountain of Grand Gilbert ib 
Pauphinp. 
