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 . r of separation uponchemical composition; dependence of order of separation uponmolecular volume; Vogts theory of the retardation of silicate-formation through an excess of silicate of aluminium. Further sections discuss, the volcanic magma; formation ofcrystalline schists; metamorphism of sediments through pressure;sublimation (pneumatolytic mineralization); zeolites and hydrates;water solution; growth of crystals; solutions of mineral
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 . r of separation uponchemical composition; dependence of order of separation uponmolecular volume; Vogts theory of the retardation of silicate-formation through an excess of silicate of aluminium. Further sections discuss, the volcanic magma; formation ofcrystalline schists; metamorphism of sediments through pressure;sublimation (pneumatolytic mineralization); zeolites and hydrates;water solution; growth of crystals; solutions of minerals in nature;solubility and formation of minerals. One of the very important contributions to MineralogicalPhysico-chemical speculations in recent years has been A. L. Daysand E. T. Allens examination and discussion of the Isomorphismand Thermal properties of the Feldspars. This was practically ademonstration of the validity of Tschermaks theory that the feld-spars, excepting the potash feldspars, (orthoclase and microcline),represented isomorphous mixtures of the soda, (Albite), and thelime, (Anorthite) feldspars, with the pure molecule of albite at one. CHABAZITE (Phacolite) Melbourne, Australia Bement Collection, x^merican Museum of Natural History
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912
