A glossary of mineralogy . h ;North Roskear; and Polgooth Mine, Beerai-ston, in Devonshire. Coniston United Mine,Lancashire. — Scotch. Strontian, Argyll--shire. Glen Tilt, Perthshire. Assynt,Sutherland .— Irish. Co. Wicklow; at Glen-dalough and Lugganure lead mines. Kil-kenny. Carlow. Kildare.— Foreign. Konigs-berg, in Norway. Bergrun, near Schwar-zenberg, in Saxony. Brit. Mus., Case 45. Slaty Coal. See Slate Coal. Slaty Copper Ore, Kirwan. Kupfer-schieffer. Sloanite, Ileneghini §* Beehi. Occursin white and opaque radiated masses, witha pearly lustre, and frequently a fracturetransverse to the
A glossary of mineralogy . h ;North Roskear; and Polgooth Mine, Beerai-ston, in Devonshire. Coniston United Mine,Lancashire. — Scotch. Strontian, Argyll--shire. Glen Tilt, Perthshire. Assynt,Sutherland .— Irish. Co. Wicklow; at Glen-dalough and Lugganure lead mines. Kil-kenny. Carlow. Kildare.— Foreign. Konigs-berg, in Norway. Bergrun, near Schwar-zenberg, in Saxony. Brit. Mus., Case 45. Slaty Coal. See Slate Coal. Slaty Copper Ore, Kirwan. Kupfer-schieffer. Sloanite, Ileneghini §* Beehi. Occursin white and opaque radiated masses, witha pearly lustre, and frequently a fracturetransverse to the radiations. H. 4-5. Camp. (CaMg)5 Si2 + 5 Ai Si + 9H. tAnalysiSi by Bechi: Silica 42-19 Alumina .... SoOOLime . . . 812Magnesia .... 267 Soda 0-25 Potash 0-30 Water ..... 12-50 101-03 BB swells up and fuses to a white enamel. Soluble in acids, forming a jelly of silica. Locality. Tuscany, in gabbro rosso. Name. After Mr. Henry Sloane, pro-prietor of the mine of Monte Catini, in Tus-cany. SMALTINE. 349. Fig. 390. Fig. 391. Fig. 392. Smaltine, Beudant, Haidinger, Nicol. Cubical, with a cleavage parallel to the facesboth of the octahedron and cube. Occursin octahedrons, cubes, and their modifica-tons; also in reticulated, arborescent, botry-oidal reniform and amorphous masses. Colourtin-white inclining to steel-grey when mas-sive, and sometimes with a superficial grey-ish or iridescent tarnish. Opaque. Lustremetallic. Yields to the knife with greyish-black. Brittle. Fracturefine-grained and uneven. H. o5 to 6. to 7-7. Comp. Arsenide of cobalt, or (Co,Fe,Ni)As = cobalt 94, iron 9-0, nickel 9-5, arsenic72-1 = 100. Analysis, from Joachimsthal, by F. Ma-rian : Arsenic 74*52 Cobalt 11-72 Iron 5-26 Nickel 1-81 Copper 1-00 Sulphur . . 1-81 96-12 BB on charcoal gives oflF copious arsenicalfumes, and fuses to a white, brittle, metallicglobule, which after being roasted impartsa blue colour to glass. Soluble in hot nitric acid, with separationof
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectmineral, bookyear1861
