A glossary of mineralogy . ly lustre. Comp. F^e2is5 + 18H. Analysis of foliated specimen, by H, Rose: 94 acidPeroxide of iron .AluminaMagnesia Silica ....Water .... 39-60 26-11 1-95 2-64 1-37 29-67 101-34 Locality. Incrusting Coquimbite in thedistrict of Copiapo, in Chili. Copper-black, Jameson. See BlackCopper. coppkrdiaspore. see kupferdiaspore. Copper Emerald, Jameson. See Diop- TASE. Copper Froth, Dana. See Tyrolite. Copper Glance, Jameson. Ehombic:Occurs crystallized in regular six - sidedprisms, mostly modified on the terminaledges, sometimes on the lateral; and in


A glossary of mineralogy . ly lustre. Comp. F^e2is5 + 18H. Analysis of foliated specimen, by H, Rose: 94 acidPeroxide of iron .AluminaMagnesia Silica ....Water .... 39-60 26-11 1-95 2-64 1-37 29-67 101-34 Locality. Incrusting Coquimbite in thedistrict of Copiapo, in Chili. Copper-black, Jameson. See BlackCopper. coppkrdiaspore. see kupferdiaspore. Copper Emerald, Jameson. See Diop- TASE. Copper Froth, Dana. See Tyrolite. Copper Glance, Jameson. Ehombic:Occurs crystallized in regular six - sidedprisms, mostly modified on the terminaledges, sometimes on the lateral; and inacute and obtuse double six-sided pyramids,with triangular planes; massive, and occa-sionally in pseudomorphous crjstals. Colourand streak blackish lead-grey, often tar-nished black, and occasionally metallic. Structure perfectly lamel-lar, sometimes sectile and soft. Eractureconchoidal. Slightly malleable, and muchmore easily fusible than copper. H. 2-5 to 5-5 to 5-8. See 2Sail-headed Coppek- Fig. 128 Fig. 129. Comp. Bisulphide of copper or -G-u S =sulphur 20, copper 80 = 100. Analysis from the United Mines of Corn-wall, by Thomson: Copper 77-16 Sulf)hur .... 20-62Iron 1-45 99-23BB on charcoal melts very easily afterthe sulphur is driven off, and yields a glo-bule of copper covered with a blackishscoria. Forms a blue solution in in Cornwall, the finest specimensin the neighbourhood of St. Just; also inAyrshire; in the porphyritic district of Bar-rack Mountain, in Ulster, and massive atKenmare Mines, Kerry. The compact andmassive varieties occur in Siberia, Hessia,Saxon}^, and the Bannat, and at the minesnear Angina, in Tuscany, Copper Glance is met with in veins and I COPPER accompanied by other ores of copper,and is highly prized by the miner; but itis rather a scarce ore of copper, and does notoccur in very great abundance, although itis found in many different places. It may be distinguished from Red Silver-ore (Pjn-a


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectmineral, bookyear1861