A Handy-book of Rock Names, with Brief Descriptions of the Rocks |
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Results 1-5 of 32
Page
... Felstone ... Group F. Whinstone ... Group G. Rocks due to pseudomorphic action Group H. Tuff Class 3. Volcanic Rocks Group I. Trachytic Group J. Augitic ... ... ... Group K. Tufa and Peperino Class 4. Transition Rocks Group L. Gneiss ...
... Felstone ... Group F. Whinstone ... Group G. Rocks due to pseudomorphic action Group H. Tuff Class 3. Volcanic Rocks Group I. Trachytic Group J. Augitic ... ... ... Group K. Tufa and Peperino Class 4. Transition Rocks Group L. Gneiss ...
Page 4
... Felstone . From these facts it would appear that Elvanyte is a connecting link between Granite and the Plu- tonic ... Felstone , and on the other into Whinstone . These basic felstones are the HYBRID ROCKS of Durocher , and they in ...
... Felstone . From these facts it would appear that Elvanyte is a connecting link between Granite and the Plu- tonic ... Felstone , and on the other into Whinstone . These basic felstones are the HYBRID ROCKS of Durocher , and they in ...
Page 5
... Felstones proper con- tain over 68 per cent . of silica ; Durocher's Hybrid rocks between 65 and 55 per cent .; while the Whinstones contain a large percentage of pyroxene or amphibole , or such minerals . Any of the Plutonic rocks may ...
... Felstones proper con- tain over 68 per cent . of silica ; Durocher's Hybrid rocks between 65 and 55 per cent .; while the Whinstones contain a large percentage of pyroxene or amphibole , or such minerals . Any of the Plutonic rocks may ...
Page 10
... FELSTONE , or FELSYTE . Subgroup A. Petrosilex . Var . a . Felstone glass . b . Ribaned petrosilex . B. Quartzitic felstone . Var . a . Oligoclasic quartzitic felstone . b . Micaceous . c . Hornblendic . d . Chloritic . e . Pyritous . f ...
... FELSTONE , or FELSYTE . Subgroup A. Petrosilex . Var . a . Felstone glass . b . Ribaned petrosilex . B. Quartzitic felstone . Var . a . Oligoclasic quartzitic felstone . b . Micaceous . c . Hornblendic . d . Chloritic . e . Pyritous . f ...
Page 11
... felstone . F. Granular felstone . G. Friable felstone . H. Rubbly felstone . I. Cleaved felstone . J. Foliated felstone . K. Granulyte . L. Felstone porphyry . Var . a . Amygdaloidal felstone . b . Vesicular felstone . M. Gneissyte ...
... felstone . F. Granular felstone . G. Friable felstone . H. Rubbly felstone . I. Cleaved felstone . J. Foliated felstone . K. Granulyte . L. Felstone porphyry . Var . a . Amygdaloidal felstone . b . Vesicular felstone . M. Gneissyte ...
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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