Elements of Mineralogy: Adapted to the Use of Seminaries and Private StudentsS.G. Goodrich, 1827 - 338 pagine |
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Elements of Mineralogy: Adapted to the Use of Seminaries and Private Students John Lee Comstock Anteprima non disponibile - 2016 |
Elements of Mineralogy, Adapted to the Use of Seminaries and Private Students J L 1789-1858 Comstock Anteprima non disponibile - 2015 |
Elements of Mineralogy, Adapted to the Use of Seminaries and Private Students J. L. (John Lee) Comstock Anteprima non disponibile - 2012 |
Parole e frasi comuni
acid alumine angles appearance arsenic beautiful becomes Bismuth blowpipe blue bluish borax brittle brown brownish carbonate carbonate of lime Char Char.—Color characters Chem cleavage color common Comp compact composed conchoidal contains copper County crystals cube dark direction Dist distinguish earthy easily edges effervescence employed faces fibrous foliated four-sided fracture Fusible gives globule grains green greenish grey greyish hardness heat Infusible Italy knife lamellar lead less light lime limestone Local lustre magnesia manganese marble masses melts metallic mineral muriatic native nearly occurs massive octohedron odor opake oxide of iron parallel passing pieces places planes polished present primitive prism Prismatic pyramids quantities quartz reddish resembles rhombic rhomboid rocks salt shining sides Silex silver six-sided soda soft sometimes Species specimens stone structure substance sulphur Sulphuret surface term terminated translucent transparent truncated variety various yellow yellowish yields
Brani popolari
Pagina ii - In conformity to the act of the Congress of the United States, entitled, " An Act for the Encouragement of Learning, by securing the copies of Maps, Chart*. and Books, to the authors and proprietors of such copies, during the times therein mentioned." And also to the act, entitled, " An Act supplementary to an Act, entitled " An Act for the Encouragement of Learning, by securing the copies of Maps, Charts, and Books, to the authors and proprietors of such copies during the time* therein mentioned,"...
Pagina ii - BBOWN, of the said district, hath deposited in this office the title of a book, the right whereof he claims as author, in the words following, to wit : " Sertorius : or, the Roman Patriot.
Pagina 146 - It colors glass of borax green. It is soluble with difficulty in nitric acid, particularly if not reduced to powder. On being exposed to the air, it is gradually decomposed: first the color of' the surface becomes brown or black ; afterwards, also, the streak is changed into red or brown ; hardness and specific gravity are diminished; and even the chemical constitution is altered, the whole being converted into hydrate of iron. It frequently occurs, along with carbonate of lime, in veins and beds,...
Pagina 169 - Batavia tried to purchase it, and offered in exchange one hundred and fifty thousand dollars, two large brigs of war, with their guns and ammunition, and other cannon, with powder and shot. But the rajah refused to part with a jewel, to which the Malays attach miraculous powers, and which they imagine to be connected with the fate of his family. This diamond is mentioned in the memoirs of the Batavian society.
Pagina 104 - Carolina one may easily trace its boundaries, so far as they have been hitherto observed. From a point taken eight miles west by south of the mouth of the...
Pagina liii - Toughness relates to internal texture. Those minerals which are bruised, or suffer depression, by repeated blows in the attempt to fracture them, are esteemed to be tough. Translucent. A mineral through which an object cannot be seen, but which transmits some light, is termed translucent. Rock salt, sometimes quartz, flint, and fluor, &c. are , translucent : many minerals are translucent on the edges, as common marble, &c.
Pagina 89 - ... years) was brought chiefly from Thibet, where it is procured from a lake which is entirely supplied by springs, and is fifteen days journey from Tisoolumbo, the capital. The water contains both borax and common salt, and being in a very high situation, is frozen during the greater part of the year. The edges and shallows of the lake are covered with a stratum of borax, which is dug up in considerable masses; and the holes thus made are gradually filled up by a fresh deposition. Its colour is...
Pagina lii - Huor, the cube is a secondary crystal. Sectile. The term sectile is derived from the Latin, seco, to cut. Those minerals are termed sectile which are midway between the brittle and the malleable. A slice or portion cut from a sectile mineral, is fragile, and the new surface on the mass is smooth and shining. Plumbago and the soapstone are both sectile. Semi-transparent. A mineral is said to be semi-transparent when an object is not distinctly seen through it.
Pagina xliv - Aggregated. A mineral rock is said to be aggregated, when the several component parts only adhere together, and may be separated by mechanical means : the felspar, quartz, and mica, constituting granite, may be separated mechanically. Granite is an aggregated rock.
Pagina 57 - ... consequence, probably, of its unfitness, from its shaky texture, for ornamental purposes on a large scale, though for ornaments of the smaller kind, such as boxes, vases, and plates, it has been pronounced unrivalled. " At Zoblitz, in Upper Saxony," says Professor Jamieson, " several hundred people are employed in quarrying, cutting, turning, and polishing the serpentine which occurs in that neighbourhood ; and the various articles into which it is manufactured are carried all over Germany. The...