A Handy-book of Rock Names, with Brief Descriptions of the Rocks |
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Page 5
... pyroxene or amphibole , or such minerals . Any of the Plutonic rocks may be contempo- raneous , i.e. interstratified with the sedimentary rocks . Under such circumstances they are often associated with beds of tuff . Tuff also on some ...
... pyroxene or amphibole , or such minerals . Any of the Plutonic rocks may be contempo- raneous , i.e. interstratified with the sedimentary rocks . Under such circumstances they are often associated with beds of tuff . Tuff also on some ...
Page 55
... pyroxene , amphibole , or uralite . With these minerals , in forming subgroups and varieties , are associated ripidolite , mica , pyrite , marcasite . Under the group of Whinstone are * The term Whinstone has been adopted in place of ...
... pyroxene , amphibole , or uralite . With these minerals , in forming subgroups and varieties , are associated ripidolite , mica , pyrite , marcasite . Under the group of Whinstone are * The term Whinstone has been adopted in place of ...
Page 56
... pyroxene . Nearly always of a dark colour . a . White - rock ( Jukes ) . A doleryte of a nearly white colour , found associated with coal in Staffordshire and elsewhere . The dykes of " white - rock " can be traced into masses of ...
... pyroxene . Nearly always of a dark colour . a . White - rock ( Jukes ) . A doleryte of a nearly white colour , found associated with coal in Staffordshire and elsewhere . The dykes of " white - rock " can be traced into masses of ...
Page 57
... pyroxene and orthoclase . D. DIABASE . — A crystalline granular aggregate of felspar , pyroxene , and ripidolite ; colour usually greenish or purplish . The felspar is either oligoclase or labradorite , and frequently the latter . The ...
... pyroxene and orthoclase . D. DIABASE . — A crystalline granular aggregate of felspar , pyroxene , and ripidolite ; colour usually greenish or purplish . The felspar is either oligoclase or labradorite , and frequently the latter . The ...
Page 64
... pyroxene or amphibole . C. EKLOGYTE , or EKLOGITE . - An aggregate of green smaragdite and red garnets . The smaragdite forms a finely crystalline matrix , in which the crystals of garnet are disseminated . It is often micaceous . Some ...
... pyroxene or amphibole . C. EKLOGYTE , or EKLOGITE . - An aggregate of green smaragdite and red garnets . The smaragdite forms a finely crystalline matrix , in which the crystals of garnet are disseminated . It is often micaceous . Some ...
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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