A Handy-book of Rock Names, with Brief Descriptions of the Rocks |
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Page 50
... systems of joint - lines , that the rock breaks up into rubble or angular shingle , and is incapable of being quarried in large pieces . I. CLEAVED or SLATY FELSTONE . - With cleavage- planes 50 HANDY - BOOK OF ROCK NAMES .
... systems of joint - lines , that the rock breaks up into rubble or angular shingle , and is incapable of being quarried in large pieces . I. CLEAVED or SLATY FELSTONE . - With cleavage- planes 50 HANDY - BOOK OF ROCK NAMES .
Page 51
George Henry Kinahan. I. CLEAVED or SLATY FELSTONE . - With cleavage- planes , sometimes so distinct that the rock splits into slates , but rarely into " Roofing slate . " J. FOLIATED or SCHISTOID FELSTONE ; SCHISTOSE FELSTONE . - A ...
George Henry Kinahan. I. CLEAVED or SLATY FELSTONE . - With cleavage- planes , sometimes so distinct that the rock splits into slates , but rarely into " Roofing slate . " J. FOLIATED or SCHISTOID FELSTONE ; SCHISTOSE FELSTONE . - A ...
Page 72
... cleavage - surfaces of felspar ; usually dark greenish - grey . Often platy in texture , and rings when struck with a hammer . Weathers with a whitish crust , similarly to many of the felstones . Phonolyte may be compact , vesicular ...
... cleavage - surfaces of felspar ; usually dark greenish - grey . Often platy in texture , and rings when struck with a hammer . Weathers with a whitish crust , similarly to many of the felstones . Phonolyte may be compact , vesicular ...
Page 82
... cleavage - planes . B. QUARTZYTE , or QUARTZITE , Quartz - schist . — Chiefly consists of quartz with some mica ; the latter being most conspicuous on the planes of foliation . Varieties in Composition . a . Itacolumyte ( Eschwege ) ...
... cleavage - planes . B. QUARTZYTE , or QUARTZITE , Quartz - schist . — Chiefly consists of quartz with some mica ; the latter being most conspicuous on the planes of foliation . Varieties in Composition . a . Itacolumyte ( Eschwege ) ...
Page 89
... cleavage has been introduced . Some slates are said to belong to the Metamor- phic series . The slaty structure , however , seems more connected with Sedimentary than with Inge- nite rocks . Slates often occur associated with ...
... cleavage has been introduced . Some slates are said to belong to the Metamor- phic series . The slaty structure , however , seems more connected with Sedimentary than with Inge- nite rocks . Slates often occur associated with ...
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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