An Introduction to the Study of Mineralogy for Australian ReadersGeorge Robertson, 1896 - 352 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
An Introduction to the Study of Mineralogy for Australian Readers Ferdinand M. Krause Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2019 |
An Introduction to the Study of Mineralogy for Australian Readers (Classic ... Ferdinand M. Krausé Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
An Introduction to the Study of Mineralogy for Australian Readers Ferdinand M. Krausé Δεν υπάρχει διαθέσιμη προεπισκόπηση - 1896 |
Συχνά εμφανιζόμενοι όροι και φράσεις
acid alumina antimony arsenic assay Ballarat Barrier Range basal planes BB fuses bismuth blue Brittle Broken Hill brown brownish calcite carbonate cassiterite cerussite Cleavage basal closed tube cobalt Colour and streak Colour white colourless Comp contains copper Creek crystalline crystals cube earthy edges faces felspar fibrous flame fluorite Fracture uneven galena gold gossan granite granular green greenish grey greyish Group H₂O Hexagonal Hydrous silicate iron Isometric lateral axes lime Lustre metallic Lustre vitreous magnesia magnetite manganese massive mineral Monoclinic native nickel occurs octahedral octahedron orthoclase oxide parallel perfect platinum prisms pseudomorphous pyramids pyrite quartz quartz veins reddish resinous Rhombic rhombohedron River rocks schist serpentine siderite silicate silicate of alumina silver six-sided soda on charcoal solid angles soluble solution sphalerite Streak white sulphate sulphide sulphur Transparent to translucent triclinic twin usually vertical volcanic yellow yellowish yields zinc
Δημοφιλή αποσπάσματα
Σελίδα 85 - It is defined by 10 fairly common minerals ranked from the softest to the hardest: talc (1), gypsum (2), calcite (3), fluorite (4), apatite (5), orthoclase (6), quartz (7), topaz (8), corundum (9), and diamond (10).
Σελίδα 89 - ... the ratio between the sine of the angle of incidence and the sine of the angle of refraction is a constant, depending only upon the nature of the two media.
Σελίδα 328 - ... silver 59.8$. BB on charcoal, fuses with spurting to a globule, gives off antimonous fumes, and coats the coal white; with soda on charcoal, in the OF, or by prolonged heating without fluxes in the RF, gives a globule of silver. In the closed tube, gives a reddish sublimate of antimonous sulphide; in the open tube, gives sulphurous fumes and a white sublimate of antimonous oxide. In some varieties arsenic is present, in which case it can be recognized by its garlic odor when the pulverized mineral...
Σελίδα 125 - ... making the supposed seller liable to the supposed buyer as on an executory contract, giving the buyer the right to exact performance or collect damages. As a general rule, one cannot own that which is not in existence, and, therefore, things not in existence cannot be the subject of a present sale. An exception to this general rule is made in the case of growing products. Things which are the natural product or expected increase of things in existence have a potential existence, and if they are...
Σελίδα 220 - Bischofl appears always to be associated with cassiterite. Professor Krause, alluding to these dykes, says : ' The white porphyry composing the summit of Mt. Bischoff contains in a felsitic base crystals of quartz and an abundance of fine-grained amorphous topaz, with here and there a cavity lined with groups of radiating acicular crystals of topaz. Pseudomorphs of topaz after quartz are also not uncommon.
Σελίδα 84 - Cleavage (Ger. Spaltbarkeit ; Fr. Clivage). — As applied to minerals and metals, is the property possessed by crystals and crystal grains of separating along certain planes. These cleavage planes are usually parallel to one or more of the faces of the crystal forms, but have not necessarily any relation to the faces of the crystal grains.
Σελίδα 95 - It consists of two plates of tourmaline, cut parallel to the optic axis of the crystal, and mounted in cells arranged to turn in eyes formed at the extremities of the looped wire.
Σελίδα 130 - „ New South Wales. Vic. „ „ Victoria. SA „ „ South Australia. Tas. „ „ Tasmania. WA „
Σελίδα 261 - All copper compounds color the borax bead in the oxidizing flame, green while hot, and blue when cold ; in the reducing flame the bead becomes red and opaque.
Σελίδα 87 - By dividing the absolute weight of the sample, observed in the first operation, by the weight of an equal volume of water we obtain the specific gravity of the mineral.