A Handy-book of Rock Names, with Brief Descriptions of the Rocks |
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Page 14
... Trachyte . Var . a . Sanidine trachyte . b . Drachenfels trachyte . c . Domyte . d . Andesyte . e . Trachydoleryte . f . Granular trachyte . g . Compact trachyte . h . Trachyte porphyry . i . Trachyte lava . j . Alumstone . Group J ...
... Trachyte . Var . a . Sanidine trachyte . b . Drachenfels trachyte . c . Domyte . d . Andesyte . e . Trachydoleryte . f . Granular trachyte . g . Compact trachyte . h . Trachyte porphyry . i . Trachyte lava . j . Alumstone . Group J ...
Page 15
... Trachyte . b . Pumiceous . c . Phonolyte . d . Pozzuolana . B. Peperino . Var . a . Augyte . b . Leucityte . c . Palagonyte . C. Volcanic conglomerate . Var . a . Volcanic breccia . b . Volcanic agglomerate . Class IV . - TRANSITION OR ...
... Trachyte . b . Pumiceous . c . Phonolyte . d . Pozzuolana . B. Peperino . Var . a . Augyte . b . Leucityte . c . Palagonyte . C. Volcanic conglomerate . Var . a . Volcanic breccia . b . Volcanic agglomerate . Class IV . - TRANSITION OR ...
Page 70
... Trachyte ; while it contains no amphibole or pyroxene , or at least , those minerals are rarely found in it . From this it is apparent that Rhyolyte is highly siliceous or felsitic Trachyte . a . Liparyte , or Liparite ; Trachyte ...
... Trachyte ; while it contains no amphibole or pyroxene , or at least , those minerals are rarely found in it . From this it is apparent that Rhyolyte is highly siliceous or felsitic Trachyte . a . Liparyte , or Liparite ; Trachyte ...
Page 72
... Trachyte . - An aggregate of sanidine crystals , with some amphibole or mica . From coarse to fine , and from porphyritic to compact . b . Drachenfels Trachyte . - Containing oligoclase in addition to the sanidine , with some mag- nesia ...
... Trachyte . - An aggregate of sanidine crystals , with some amphibole or mica . From coarse to fine , and from porphyritic to compact . b . Drachenfels Trachyte . - Containing oligoclase in addition to the sanidine , with some mag- nesia ...
Page 73
... Trachytes and Augytes . Varieties in Texture . f . Granular Trachyte ; g . Compact ; h . Porphyry ; i . Trachyte - lava or Vesicular Trachyte ; and j . Alum - stone . The last does not appear to be a normal rock , but to be due to ...
... Trachytes and Augytes . Varieties in Texture . f . Granular Trachyte ; g . Compact ; h . Porphyry ; i . Trachyte - lava or Vesicular Trachyte ; and j . Alum - stone . The last does not appear to be a normal rock , but to be due to ...
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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