A Handy-book of Rock Names, with Brief Descriptions of the Rocks |
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Page 1
... crystalline or homogeneous ; or they may be scoriaceous , vesicular , hyaline , & c . & c . Rocks may be chemically , mechanically , or organically formed , or two or more of these com- bined ; they may be stratified or unstratified ...
... crystalline or homogeneous ; or they may be scoriaceous , vesicular , hyaline , & c . & c . Rocks may be chemically , mechanically , or organically formed , or two or more of these com- bined ; they may be stratified or unstratified ...
Page 23
... Crystalline limestone . c . Marble . d . Oolyte . Subvar . a . Pisolyte . b . Dolomitic oolyte . e . Chalk . Subvar . a . Indurated chalk . b . Chalk rock . c . Pisolitic chalk . d . Glauconitic chalk . e . Ferruginous chalk . f ...
... Crystalline limestone . c . Marble . d . Oolyte . Subvar . a . Pisolyte . b . Dolomitic oolyte . e . Chalk . Subvar . a . Indurated chalk . b . Chalk rock . c . Pisolitic chalk . d . Glauconitic chalk . e . Ferruginous chalk . f ...
Page 26
... crystalline aggregate of quartz , felspars , and micas , nearly universally known as granite or granyte [ Celtic gran , Lat . granum , a grain . ] * There are , however , rocks called granite in which part of the mica is replaced by ...
... crystalline aggregate of quartz , felspars , and micas , nearly universally known as granite or granyte [ Celtic gran , Lat . granum , a grain . ] * There are , however , rocks called granite in which part of the mica is replaced by ...
Page 28
... crystalline . These latter peculiarities may , however , be due to the final rapid cooling when in the veins . NOTE . - M'Farlane thus writes on the cooling of siliceous rocks " The scoria of iron - furnaces are usually very acid , con ...
... crystalline . These latter peculiarities may , however , be due to the final rapid cooling when in the veins . NOTE . - M'Farlane thus writes on the cooling of siliceous rocks " The scoria of iron - furnaces are usually very acid , con ...
Page 29
... crystalline rock , usually purplish or red- dish purple in colour . An aggregate of felspar ( orthoclase ) , quartz , and mica . Black and white mica seem always to be present , but often in such minute flakes as to be only microsco ...
... crystalline rock , usually purplish or red- dish purple in colour . An aggregate of felspar ( orthoclase ) , quartz , and mica . Black and white mica seem always to be present , but often in such minute flakes as to be only microsco ...
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A Handy Book of Rock Names: With Brief Descriptions of the Rocks (1873) G. Henry Kinahan No preview available - 2008 |
Common terms and phrases
aggregate of quartz amphibole Amygdaloidal appear Arenaceous Argillous Augyte basic beds Bituminous Breccia Calcareous called Carbonaceous Chloritic classed clay coal colour compact Concretionary conglomerate Conglomeritic constituents containing Cotta crystalline crystals Cupriferous deposited Derivate rocks Diabase Dioryte Dolomitic drift dykes earth elvanyte Euryte felsitic felspar felspathic felstone Ferruginous Fibrous fissile foliation formed gneiss Gneissoid gneissyte granite granitoid granityte granular grit Group Hematitic Hornblendic igneous rocks ingenite rocks intrusive granite Ireland Jukes labradorite lamination latter layers less Lignyte limestone marcasite marl mass matrix metamorphic metamorphosed mica Micaceous minerals Nodular occur oligoclase oligoclase granite Ophyte orthoclase passage-rock Plutonic rocks Porphyritic Protogene pyrite pyroxene quartz Quartzose quartzyte reddish Ribaned ripidolite sand sandstone schist schistose sedimentary rocks shale siliceous slate slaty sometimes Spheroidal Steatyte Structural Varieties Subgroup Subvar Subvarieties surface Syenyte talc Talcose texture Trachyte tuff Tuffose turf usually Varieties in Composition veins of segregation Vesicular Volcanic weather Whinstone