Rocks Classified and Described: A Treatise on LithologyLongmans, Green, and Company, 1866 - 425 páginas |
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Página 2
... frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ORES . The number of the accessory ingredients is very much greater , and indeed almost unlimited ...
... frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ORES . The number of the accessory ingredients is very much greater , and indeed almost unlimited ...
Página 3
... frequently denotes the neighbourhood of another , and , vice versâ , that the presence of some minerals forbids the ... frequent occurrence ; otherwise , the arrangement adopted will be found to correspond in several respects with Dana's ...
... frequently denotes the neighbourhood of another , and , vice versâ , that the presence of some minerals forbids the ... frequent occurrence ; otherwise , the arrangement adopted will be found to correspond in several respects with Dana's ...
Página 6
... frequently in the form of transparent crystals ( rock crystal ) , or in greyish- brown to black crystals ( smoky quartz , false topaz ) . ( 8 ) As principal ingredient of many fragmental rocks ( sandstones , conglomerates ) . As sand ...
... frequently in the form of transparent crystals ( rock crystal ) , or in greyish- brown to black crystals ( smoky quartz , false topaz ) . ( 8 ) As principal ingredient of many fragmental rocks ( sandstones , conglomerates ) . As sand ...
Página 7
... frequently furnishes the material of fossils , especially of fossil wood ( woodstone ) . There are at least three ... frequent occurrence as a secondary product , furnishing the interior of small OPAL .
... frequently furnishes the material of fossils , especially of fossil wood ( woodstone ) . There are at least three ... frequent occurrence as a secondary product , furnishing the interior of small OPAL .
Página 9
... frequently coloured , especially reddish , yellowish , rarely green ( amazon stone coloured by copper ) . Lustre vitreous , frequently with mother - of - pearl lustre on the most perfect cleavage surfaces . Possesses every degree of ...
... frequently coloured , especially reddish , yellowish , rarely green ( amazon stone coloured by copper ) . Lustre vitreous , frequently with mother - of - pearl lustre on the most perfect cleavage surfaces . Possesses every degree of ...
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Términos y frases comunes
aggregates Alps amygdaloidal aphanite appear argillaceous augite basalt beds bitumen brown Browncoal calcareous calcspar carbonate character chemical chlorite clay clay-slate Cleavage coal colour Colourless columnar compact composition compound conchoidal to uneven consists contains Crown 8vo crystalline schists crystals decomposed deposits diabase diorite dolerite dolomite earth Edition felsitic felspar fibrous fine-grained foliated formation fossils Fracture conchoidal frequently fuses garnet geodes geol geological Germ gneiss grains granite granular grav greenstones grey gypsum hornblende igneous rocks imbedded iron Jahrb labradorite lavas leucite lime limestone Lustre vitreous magnesia magnetic iron-ore marl mass massive matrass matrix melaphyre metamorphic mica mica-schist mineral muriatic acid occurs oligoclase opaque origin orthoclase oxide plutonic porphyritic pyrites pyroxene quartz quartz-porphyry resinous rock-salt sandstone Saxony schists sedimentary rocks serpentine shale silica slaty soluble sometimes strata sulphuric surface syenite texture trachyte transition translucent transmutation Transparent tufa usually varieties veins vesicular cavities volcanic Woodcuts
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