A glossary of mineralogy . Fig. 99. Fig. 100,. Comp. (Ca, Na, K) Si + SAl Si2 + 6H. Analysis from Faroe, by Berzelius;Potash . . .0-4-1Soda . . . 2-75 Lime 8-85 Magnesia . . .0 40Alumina .... 2000 Silica 48-00 Water 19-30 99-21BB shrinks up and fuses easily to a blis-tered slightly translucent white in the state of powder in muriaticacid. Chabazite is met with in fissures andcavities of some basaltic rocks, or withingeodes of Quartz and Agate disseminated inthose rocks. CHALCEDONY. 71 Localities. In large and very beautifulcrjstals in the amygdaloids of Faroe, Ice-land and Green


A glossary of mineralogy . Fig. 99. Fig. 100,. Comp. (Ca, Na, K) Si + SAl Si2 + 6H. Analysis from Faroe, by Berzelius;Potash . . .0-4-1Soda . . . 2-75 Lime 8-85 Magnesia . . .0 40Alumina .... 2000 Silica 48-00 Water 19-30 99-21BB shrinks up and fuses easily to a blis-tered slightly translucent white in the state of powder in muriaticacid. Chabazite is met with in fissures andcavities of some basaltic rocks, or withingeodes of Quartz and Agate disseminated inthose rocks. CHALCEDONY. 71 Localities. In large and very beautifulcrjstals in the amygdaloids of Faroe, Ice-land and Greenland, often associated withStilbite and Green Earth. The GiantsCauseway, in Basalt; Portrush, in fine trans-parent crystals. — Scotch. In Trap at Kil-malcolm ; Graingers Quarry, 2-h miles Kilmalcolm; Glen Farg in Fifeshire; Eigon the coast of Argyleshire; the Islands ofMull and Skye, &c. Splendid specimensoccur in a kind of Greenstone (the Grau-stein of Werner) at Aussig in Bohemia;Aunerode near Giessen, of a wine-yellowc


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectmineral, bookyear1861