A Glossary of MineralogyLongman, Green, Longman, and Roberts, 1861 - 420 páginas |
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Página 2
... uneven to conchoidal . H. 6. S.G. 2.575 . Analysis by Abich , from St. Gotthard : Silica Alumina Peroxide of iron Analysis by Bonsdorff , from Taberg : Potash Silica 59.75 • Lime Lime 14.25 Soda Magnesia 21.10 Protoxide of iron ...
... uneven to conchoidal . H. 6. S.G. 2.575 . Analysis by Abich , from St. Gotthard : Silica Alumina Peroxide of iron Analysis by Bonsdorff , from Taberg : Potash Silica 59.75 • Lime Lime 14.25 Soda Magnesia 21.10 Protoxide of iron ...
Página 6
... 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 Peroxide of iron • Soda Potash Lime Magnesia Protoxide of ...
... 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 Peroxide of iron • Soda Potash Lime Magnesia Protoxide of ...
Página 7
... Opaque ; feebly translucent and of a yellowish - brown colour in thin splin- ters . Lustre submetallic , inclining to vi- treous or resinous . Streak greenish - grey . 8 ALLEMONTITE . Brittle . Fracture uneven , passing into B 4.
... Opaque ; feebly translucent and of a yellowish - brown colour in thin splin- ters . Lustre submetallic , inclining to vi- treous or resinous . Streak greenish - grey . 8 ALLEMONTITE . Brittle . Fracture uneven , passing into B 4.
Página 8
... uneven . H. not so hard as Quartz , but strikes fire with steel . S.G. 3-7 to 4-21 . BB behaves like Melanite . Protoxide of iron Lime . Carbonic acid Water 20.50 • 31.34 0.31 1.92 2.73 42.91 99.71 BB soon loses colour , and becomes ...
... uneven . H. not so hard as Quartz , but strikes fire with steel . S.G. 3-7 to 4-21 . BB behaves like Melanite . Protoxide of iron Lime . Carbonic acid Water 20.50 • 31.34 0.31 1.92 2.73 42.91 99.71 BB soon loses colour , and becomes ...
Página 9
... uneven . H. 6.5 to 7.5 . S.G. 3-7 to 4.21 . Analysis by Hisinger , from Fahlun : Silica Alumina Protoxide of iron . Protoxide of manganese 39.66 19.66 39.68 1.80 100.80 BB fuses rather readily to a black magnetic globule with borax more ...
... uneven . H. 6.5 to 7.5 . S.G. 3-7 to 4.21 . Analysis by Hisinger , from Fahlun : Silica Alumina Protoxide of iron . Protoxide of manganese 39.66 19.66 39.68 1.80 100.80 BB fuses rather readily to a black magnetic globule with borax more ...
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Términos y frases comunes
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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