A Glossary of MineralogyLongman, Green, Longman, and Roberts, 1861 - 420 páginas |
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Página xiv
... light is transmitted , and objects are not seen , as in Oriental Alabaster . 4. Subtranslucent : when light is only transmitted at the edges . 5. Opaque : when no light is transmittted . Lustre . The kinds of Lustre depending upon the ...
... light is transmitted , and objects are not seen , as in Oriental Alabaster . 4. Subtranslucent : when light is only transmitted at the edges . 5. Opaque : when no light is transmittted . Lustre . The kinds of Lustre depending upon the ...
Página xv
... light , but without pro- ducing an image , as in Talc , Copper Pyrites , & c . ( 4. ) Glimmering : when the reflection of the light is imperfect , and appa- rently proceeding from points on the surface , as in Flint , Chalcedony , & c ...
... light , but without pro- ducing an image , as in Talc , Copper Pyrites , & c . ( 4. ) Glimmering : when the reflection of the light is imperfect , and appa- rently proceeding from points on the surface , as in Flint , Chalcedony , & c ...
Página xvi
... light in two different directions , of which examples are afforded by Iolite and Mica . Pleochroism is when the above property is exhibited in more than two directions . Phosphorescence . When minerals appear more or less luminous they ...
... light in two different directions , of which examples are afforded by Iolite and Mica . Pleochroism is when the above property is exhibited in more than two directions . Phosphorescence . When minerals appear more or less luminous they ...
Página xxi
... light , is caused by the full combustion of the gases derived from the oil , wax , or tallow which rises into the wick , and is called the reducing flame , because , when concentrated upon the substance to be tested , it tends to ...
... light , is caused by the full combustion of the gases derived from the oil , wax , or tallow which rises into the wick , and is called the reducing flame , because , when concentrated upon the substance to be tested , it tends to ...
Página xxvi
... light , and are rendered alkaline by being converted into quick lime , when the carbonic acid is expelled by heat . When not compact massive , the cleavage is very perfect rhombohedral , and the specific gravity does not exceed 2.8 ...
... light , and are rendered alkaline by being converted into quick lime , when the carbonic acid is expelled by heat . When not compact massive , the cleavage is very perfect rhombohedral , and the specific gravity does not exceed 2.8 ...
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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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