A System of Mineralogy: Comprising the Most Recent DiscoveriesWiley & Putnam, 1844 - 633 Seiten |
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A System of Mineralogy: Comprising the Most Recent Discoveries James Dwight Dana Keine Leseprobe verfügbar - 2015 |
Häufige Begriffe und Wortgruppen
according Alumina angles Antimony apatite Arsenic axes blowpipe blue borax Brittle brown carbonate Chabazite Cleavage parallel cobalt Color white colorless Composition Compound crystals conchoidal copper crystalline cube earthy faces feldspar fibrous flame Fracture fuses garnet Genus glass globule gneiss granular gray green heat hexagonal hornblende Imperfect crystallizations intumescence Klaproth lateral edges lime limestone Lustre Lustre vitreous magnesia magnetic manganese masses massive metallic mica mineral molecules muriatic acid nitric acid oblique rhombic occurs octahedron opaque oxyd oxyd of iron p'rly pearly perf peroxyd of iron Pogg potash Prim Primary form Prismatic protoxyd of iron pyrites pyroxene quartz rhombic rhombohedron rhomboidal right rhombic prism rocks scapolite Secondary form Sectile Silica silver soda solid solid angles species specimens steel-gy Streak white sulphate Thomson tourmaline translucent transparent Trp-sbtrl Trp-trl varieties yellow
Beliebte Passagen
Seite 113 - ... is the weight of a volume of water equal to that of the mineral.
Seite 108 - Rubicon on a certain occasion, and it is a contingent general truth that the sine of the angle of incidence bears a constant ratio to the sine...
Seite 550 - Antimony Sb Argon A Arsenic As Barium Ba Bismuth Bi Boron B Bromine Br Cadmium Cd Calcium Ca Carbon C Cerium Ce...
Seite 75 - Let a mass of matter be supposed to consist of spherical particles all of the same size, but of two different kinds in equal numbers, represented by black and white balls; and let it be required that, in their perfect intermixture, every black ball shall be equally distant from all surrounding white balls, and that all adjacent balls of the same denomination shall also be equidistant from each other.
Seite 112 - The specific gravity of a mineral is its weight compared with that of another substance of equal volume, whose gravity is taken at unity.
Seite 290 - In the matrass it loses its water, and becomes yellowishgreen and friable. When heated to a certain point upon charcoal, it is reduced in an instant with a kind of deflagration, leaving a globule of malleable copper, with white metallic particles dispersed throughout it, which are entirely volatile at a continued blast.
Seite 609 - CARPENTER, GEORGE W. On the Mineralogy of Chester County, with an account of some of the Minerals of Delaware, Maryland and other Localities.
Seite 115 - If the file abrades the mineral under trial with the same ease as No. 4, and produces an equal...
Seite 107 - AE, is farther from the same perpendicular than if it had proceeded in the original direction DE. We have therefore this important principle : Light, in passing from a rarer to a denser medium, is refracted TOWARDS the perpendicular ; if from a denser to a rarer, it is refracted FROM the perpendicular.
Seite 26 - An edge is beveled, when replaced by two planes, which are respectively inclined at equal angles to the adjacent faces, (fig.