A Glossary of MineralogyLongman, Green, Longman, and Roberts, 1861 - Всего страниц: 420 |
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Стр. xiv
... pearly reflection is displayed from the in- terior of a mineral , as is the case in some kinds of Opal and Cat's - Eye . Tarnish signifies that the colour of the mineral is different from that ex- hibited by a newly fractured surface ...
... pearly reflection is displayed from the in- terior of a mineral , as is the case in some kinds of Opal and Cat's - Eye . Tarnish signifies that the colour of the mineral is different from that ex- hibited by a newly fractured surface ...
Стр. xv
... pearly is used to denote when the pearly and sub- metallic lustre are displayed in the same mineral , as in Hypersthene . 5. Silky , or like silk . It is generally the result of a fibrous structure , as is apparent in fibrous Gypsum and ...
... pearly is used to denote when the pearly and sub- metallic lustre are displayed in the same mineral , as in Hypersthene . 5. Silky , or like silk . It is generally the result of a fibrous structure , as is apparent in fibrous Gypsum and ...
Стр. xxvi
... pearly . The cleavage of Felspar is highly characteristic : one face of cleavage is perfectly smooth , and another , nearly at right angles to it , is somewhat less perfect . Orthoclase may be recognised from the other varieties of ...
... pearly . The cleavage of Felspar is highly characteristic : one face of cleavage is perfectly smooth , and another , nearly at right angles to it , is somewhat less perfect . Orthoclase may be recognised from the other varieties of ...
Стр. 2
... pearly lustre . The crystals are long slen- der prisms , which are easily broken . The fibrous crystallizations of a green or greenish- grey colour , disposed in wedge - shaped masses or in radii , sometimes promiscuously aggre- gated ...
... pearly lustre . The crystals are long slen- der prisms , which are easily broken . The fibrous crystallizations of a green or greenish- grey colour , disposed in wedge - shaped masses or in radii , sometimes promiscuously aggre- gated ...
Стр. 6
... pearly on cleavage planes . Streak white . Brittle . Fracture uneven . H. 6. S.G. 2:59 to 2.65 . Fig . 5 . Comp . Na Si + Al Si3 = silica 68 · 7 , alu- mina 19.5 , soda 11.8 = 100 . Analysis by Abich , from Miask : Silica . Alumina ...
... pearly on cleavage planes . Streak white . Brittle . Fracture uneven . H. 6. S.G. 2:59 to 2.65 . Fig . 5 . Comp . Na Si + Al Si3 = silica 68 · 7 , alu- mina 19.5 , soda 11.8 = 100 . Analysis by Abich , from Miask : Silica . Alumina ...
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Часто встречающиеся слова и выражения
Alumina Analysis antimony arsenic Barytes BB fuses BB on charcoal Beudant blue Bohemia borax Breithaupt Brit Brittle Brochant brown carbonate cerium cleavage Coal cobalt colourless Comp conchoidal Cornwall Crown 8vo crystals Dana Dufrénoy earthy Felspar fibrous flame Fracture conchoidal Fracture uneven Garnet glass globule granular green grey Haidinger Harz Hausmann Haüy Hornblende Huel intumescence Jameson Kirwan Kobell lead Lime Magnesia Localities Lustre Lustre vitreous M. P. G. Horse-shoe M. P. G. Principal Floor Magnesia manganese masses mineral Mohs muriatic acid name given nickel Nicol nitric acid octahedrons opaque Oxide Oxide of copper pearly Peroxide of iron Phillips Phosphoric acid Potash primary form Protoxide of iron Protoxide of manganese Pyrites Quartz resembling resinous rhombic prism RHOMBOHEDRAL rocks Saxony Silica Silica Alumina Peroxide silver Soda Soluble sometimes SPAR stone Streak white sulphate sulphuric acid Tellurium Titanic acid Topaz translucent transparent variety Wall-case Water Werner yellow yellowish
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