A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . ANDALUSITE Delaware Co.,- DANBURITE Russel, N. Y. Bement Collection, American Museum of Natural History DEVELOPMENT OF MINERALOGY 231 of symmetry, by which a modification of one part of a crystalimposes a similar modification upon similar parts. Hauy success-fully applied his crystallography to the determination of species,and his correction of previous errors of identification was sus-tained by chemical analysis. The zircons of No
A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . ANDALUSITE Delaware Co.,- DANBURITE Russel, N. Y. Bement Collection, American Museum of Natural History DEVELOPMENT OF MINERALOGY 231 of symmetry, by which a modification of one part of a crystalimposes a similar modification upon similar parts. Hauy success-fully applied his crystallography to the determination of species,and his correction of previous errors of identification was sus-tained by chemical analysis. The zircons of Norway, regarded as vesuvianite, were deter-mined by Hauy; he showed the specific character of euclase, sep-arated meionite from hyacinth (zircon), separated the mineralscompounded under the name of schorl, united the various forms ofspecular iron, and divided the isometric (pyrite) from the ortho-rhombic (marcasite) form of iron sulphide. Hauys views and system were not received without opposition,even by well experienced crystallographers, but his new and ex-act results stimulated students, and there were published severalsystems of crystals differing from his. Weiss, who undertook t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
