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 affords Alumina angles antimony apatite Arsenic Berzelius Bismuth blowpipe blue borax Brittle brown carbonate Chabazite Cleavage parallel cobalt Color white colorless Composition Compound crystals conchoidal copper crystalline cube earthy feldspar fibrous flame fumes fuses garnet Genus glass globule gneiss granular gray green heated hexagonal hornblende Imperfect crystallizations intumescence Klaproth lateral edges lead lime limestone Lustre Lustre metallic Lustre vitreous magnesia magnetic manganese masses massive mica mineral molecules muriatic acid nitric acid occurs octahedron odor opaque oxyd oxyd of iron p'rly pearly perf peroxyd of iron planes Pogg Potash Prim Primary form Prismatic protoxyd of iron pyrites pyroxene quartz resinous rhombohedron rhomboidal right rhombic prism rocks salt scapolite Secondary form Sectile Silica silver soda spar species specimens Streak white subconchoidal Thomson tourmaline translucent transparent Trp-trl variety veins 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 613 - An Account of an Earthy Substance found near the Falls of Niagara, and vulgarly called the " Spray of the Falls ;" together with some Remarks on the Falls...
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 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 401 - Pitt or regent diamond is of less size, it weighing but 136-25 carats or 419} grains, but on account of its unblemished transparency and color, it is considered the most splendid of Indian diamonds. It was sold to the Duke of Orleans, by Mr. Pitt, an English gentleman, who was governor of Bencoleo, in Sumatra, for £130,000.
Seite 517 - Lake is one and a half miles in circumference ; the bitumen is solid and cold near the shores, but gradually increases in temperature and softness towards the centre, where it is boiling. The solidified bitumen appears as if it had cooled, as the surface boiled, in large bubbles. The ascent to the lake from the sea, a distance of threequarters of a -mile, is covered with a hardened pitch, on which trees and vegetables flourish ; and...