METALS. 85. Ferrum. 273 



Found in Bohetniay tranconia^ Sec. generally in large ftrata, 

 confining of columns which are eafi'y feparable, fonr'times 

 jointed, and with their furface rough: it (lightly ftains the 

 fingers f'^els dry, adheres to the tongue, founds hollow 

 when ftruck, blackens before the blowpipe, ffFervefces with 

 borax and gives it an olive-greeft and blackiih ting?. 



micaceum. Not magnetic, iron-grey, fhining, of a lamellar tex- 

 ture. 

 Ferrum micaceum. Sy/i, not, xii. 3. /. 139. «, 18. 

 Ferrum minera micacea. Wall. f\Jl- 2, p, 242, «. 8, 

 Micaceous iron ore. Kirtuan min 2. p. 184. 

 Micaceous iron ore. Schmeijfjer mineral 2. p. 87, 

 Brown fcaly iron ore. Thom/on chem. 4. p 57. 

 Foliated oxide ot iron. Soiverby Brit min. t 64, 



Found in Wales ^ Scotland y Cornnvall^ Sec. in Sjl>e*-iaf Lapland, 

 Siveden, Hungary^ and other part> ot Europe^ malTive or dif- 

 feminated, varioufly grouped, or cryftali'zed in fmall 6- 

 iided tables : colour bright iron grey, bluifh, or approaching 

 to black : the foliations are brittle, Itraight or incurved, and 

 rarely prcJent a granular concretion : it feels fomewhat 

 greify, and does not ilain the fingers: fpeciiic gravity fron> 

 4,500, to 5,070, 



speculare. Not magnetic, compa6l, of a fteel-grey colour and luftre, 

 with a red (treak, internally fpecular. 

 Ferrum minera grifea. Wall fy/i. 2. p. 239. n. 6. 

 Specular iron ore, Kirivan miner. 2. ^ 162. 

 Specular iron ore, or mi;ror or'». Schmei/ser 2. p, 86. 

 Specular iron ore. T homfon chem. 4 ^ (;4. 

 Cryftallized oxide of iron. Soiuerby Brit min. /, 66. 



2. Reddifh, flriking fire with fleel, folid, llriatc in a rhombic 



manner, 

 Ferrum rubricans. Syfi^ nat. xii. 3, p, 140. n. 20. 



3. Reddifh, with creft cryllallized foliations in the hollow in- 



terllices. 

 Ferrum cellulofum. Syft.nat. xii. 3.;). 140. «. 21. 

 Cryftallized oxide of iron. Sonjoerhy Br, min. t- 66. 



Found in the mines of Lancajhire^ in the ifleof ^Z^^, Germany, 

 Frame, RuJJia, Sec. mafTive, difTcminated, or cryftallized: 

 colour dark grey or inclining to brown, the furface oft. n 

 tarnifhed an' exhibiting various iridefcent colour*: cryftals 

 cuSic or rhombic, or in flat 6 or S-fided ta Mes, or in prifms 

 and pyramids, often cellularly difpofed in thin ere6l angular 

 plates: it gives a dark-red ftrek, and blackifh-red powder } 



VOL. VII. — Mm 



