Rocks Classified and Described: A Treatise on LithologyLongmans, Green, and Company, 1866 - 425 páginas |
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Página ix
... Augite Section c . Mica Section d . Hydrous Magnesian Silicates ( Talc Section ) e . Zeolite Section ( Non - Magnesian Hydrous Silicates ) 151 ∞ ∞ 8 9 10 14 16 22 24 28 The Monometric Zeolites Hexagonal Zeolites 29 30 Trimetric ...
... Augite Section c . Mica Section d . Hydrous Magnesian Silicates ( Talc Section ) e . Zeolite Section ( Non - Magnesian Hydrous Silicates ) 151 ∞ ∞ 8 9 10 14 16 22 24 28 The Monometric Zeolites Hexagonal Zeolites 29 30 Trimetric ...
Página 2
... ( Augite ) , CALCSPAR , and DOLOMITE . The following occur less frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ORES . The number of the accessory ...
... ( Augite ) , CALCSPAR , and DOLOMITE . The following occur less frequently : -CHLORITE , TALC , LEUCITE , NEPHELINE , OLIVINE , TOURMALINE , GARNET , GYPSUM , COAL , some SULPHURETS , and some IRON ORES . The number of the accessory ...
Página 3
... augite ; orthoclase or oligoclase and hornblende ; hornblende and epidote . 2. On the other hand , quartz and augite appear each to exclude the presence of each other ; also ( according to Roth ) labradorite and hornblende ( ? ) . We ...
... augite ; orthoclase or oligoclase and hornblende ; hornblende and epidote . 2. On the other hand , quartz and augite appear each to exclude the presence of each other ; also ( according to Roth ) labradorite and hornblende ( ? ) . We ...
Página 16
... AUGITE SECTION . 15. Hornblende ( Amphibole ) .- Monoclinic . Crystallised or massive , in stalklike or granular aggregates . Cleavage pris- matic , very perfect ; in other directions imperfect . 16 MINERALS . b Augite Section.
... AUGITE SECTION . 15. Hornblende ( Amphibole ) .- Monoclinic . Crystallised or massive , in stalklike or granular aggregates . Cleavage pris- matic , very perfect ; in other directions imperfect . 16 MINERALS . b Augite Section.
Página 17
... crystals , imbedded in basaltic and trachytic rocks . A variety of the mineral is termed gamsigradite , and forms an essential constituent of the rock timazite . C ( d ) Uralite has the same cleavage , structure LEUCITE GROUP - AUGITE . 17.
... crystals , imbedded in basaltic and trachytic rocks . A variety of the mineral is termed gamsigradite , and forms an essential constituent of the rock timazite . C ( d ) Uralite has the same cleavage , structure LEUCITE GROUP - AUGITE . 17.
Outras edições - Ver tudo
Rocks Classified and Described: A Treatise on Lithology Bernhard von Cotta Visualização integral - 1878 |
Rocks Classified and Described: A Treatise on Lithology Bernhard von Cotta Visualização integral - 1866 |
Rocks Classified and Described: A Treatise on Lithology Bernhard von Cotta Visualização integral - 1865 |
Palavras e frases frequentes
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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