A Glossary of Mineralogy |
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Page xii
... sometimes complex varieties of crystals may be reduced to some five or six simple types , of which the others are only modifications or variations and even that the complicated forms of crystals may be sometimes actually converted into ...
... sometimes complex varieties of crystals may be reduced to some five or six simple types , of which the others are only modifications or variations and even that the complicated forms of crystals may be sometimes actually converted into ...
Page xxvi
... sometimes bluish - green and brown , and have a vitreous lustre , which , in some instances , inclines to pearly . The cleavage of Felspar is highly characteristic : one face of cleavage is perfectly smooth , and another , nearly at ...
... sometimes bluish - green and brown , and have a vitreous lustre , which , in some instances , inclines to pearly . The cleavage of Felspar is highly characteristic : one face of cleavage is perfectly smooth , and another , nearly at ...
Page 2
... sometimes applied to Sapphire of a ACICULAR - ORE , Jameson . See AIKENITE . hair - brown colour . ACICULAR STONE , Jameson . See SCOLE- CITE . ACICULITE , Nicol . See AIKENITE . ADELPHOLITE , Nordenskiöld . A niobate or tantalate of ...
... sometimes applied to Sapphire of a ACICULAR - ORE , Jameson . See AIKENITE . hair - brown colour . ACICULAR STONE , Jameson . See SCOLE- CITE . ACICULITE , Nicol . See AIKENITE . ADELPHOLITE , Nordenskiöld . A niobate or tantalate of ...
Page 11
... sometimes brown . It is brittle , yields readily to the knife , affording a white streak , and breaks with a fracture which is more or less perfectly conchoidal . It varies from perfect transparency to com- plete opacity , sometimes ...
... sometimes brown . It is brittle , yields readily to the knife , affording a white streak , and breaks with a fracture which is more or less perfectly conchoidal . It varies from perfect transparency to com- plete opacity , sometimes ...
Page 16
... sometimes mis- taken for Diamonds . Tavatsch in the Ty- rol . The Grisons in mica - slate . Slidre in Norway . The Ural . Spain . Name . From avatars , extension , in allusion to the height of the pyramids of the octahe dral crystals ...
... sometimes mis- taken for Diamonds . Tavatsch in the Ty- rol . The Grisons in mica - slate . Slidre in Norway . The Ural . Spain . Name . From avatars , extension , in allusion to the height of the pyramids of the octahe dral crystals ...
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Common terms and phrases
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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