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- Bostonite abstract "Bostonite, in petrology, is a fine-grained, pale-colored, grey or pinkish intrusive rock, which consists essentially of alkali-feldspar (orthoclase, perthite, anorthoclase, and albite). Some samples may contain a small amount of interstitial quartz and others may have a small percentage of calcium present in a sodic plagioclase feldspar. Accessory minerals include apatite, zircon and magnetite, with rare biotite, hornblende or pyroxene. They have compositions very similar to the trachytes and are usually grouped with them. The texture common in these rocks include clusters of divergent or radiating irregular feldspar laths in a fine grained matrix.Typically they occur as dikes or as thin sills, often in association with nepheline syenite; and they seem to bear a complementary relationship to certain types of lamprophyre dikes. Though nowhere very common they have a wide distribution with occurrences in Scotland, Wales, Massachusetts, Ontario, Portugal, Bohemia, and other places.The term was widely used in the geologic literature of the late 19th and early 20th centuries, but is currently being discouraged in petrologic usage.".
- Bostonite wikiPageExternalLink index.html.
- Bostonite wikiPageExternalLink 1up.
- Bostonite wikiPageID "1798552".
- Bostonite wikiPageLength "1806".
- Bostonite wikiPageOutDegree "30".
- Bostonite wikiPageRevisionID "675751130".
- Bostonite wikiPageWikiLink Albite.
- Bostonite wikiPageWikiLink Anorthoclase.
- Bostonite wikiPageWikiLink Apatite.
- Bostonite wikiPageWikiLink Biotite.
- Bostonite wikiPageWikiLink Bohemia.
- Bostonite wikiPageWikiLink Calcium.
- Bostonite wikiPageWikiLink Category:Subvolcanic_rocks.
- Bostonite wikiPageWikiLink Dike_(geology).
- Bostonite wikiPageWikiLink Feldspar.
- Bostonite wikiPageWikiLink Hornblende.
- Bostonite wikiPageWikiLink Intrusion.
- Bostonite wikiPageWikiLink Intrusive.
- Bostonite wikiPageWikiLink Lamprophyre.
- Bostonite wikiPageWikiLink Magnetite.
- Bostonite wikiPageWikiLink Massachusetts.
- Bostonite wikiPageWikiLink Matrix_(geology).
- Bostonite wikiPageWikiLink Nepheline_syenite.
- Bostonite wikiPageWikiLink Ontario.
- Bostonite wikiPageWikiLink Orthoclase.
- Bostonite wikiPageWikiLink Perthite.
- Bostonite wikiPageWikiLink Petrology.
- Bostonite wikiPageWikiLink Plagioclase.
- Bostonite wikiPageWikiLink Portugal.
- Bostonite wikiPageWikiLink Pyroxene.
- Bostonite wikiPageWikiLink Quartz.
- Bostonite wikiPageWikiLink Rock_(geology).
- Bostonite wikiPageWikiLink Scotland.
- Bostonite wikiPageWikiLink Sill_(geology).
- Bostonite wikiPageWikiLink Trachyte.
- Bostonite wikiPageWikiLink Wales.
- Bostonite wikiPageWikiLink Zircon.
- Bostonite hasPhotoCollection Bostonite.
- Bostonite page "297".
- Bostonite title "Bostonite".
- Bostonite url 1up.
- Bostonite volume "4".
- Bostonite wikiPageUsesTemplate Template:EB1911.
- Bostonite wikiPageUsesTemplate Template:Orphan.
- Bostonite wikiPageUsesTemplate Template:Petrology-stub.
- Bostonite subject Category:Subvolcanic_rocks.
- Bostonite hypernym Grey.
- Bostonite type Article.
- Bostonite type River.
- Bostonite type Article.
- Bostonite comment "Bostonite, in petrology, is a fine-grained, pale-colored, grey or pinkish intrusive rock, which consists essentially of alkali-feldspar (orthoclase, perthite, anorthoclase, and albite). Some samples may contain a small amount of interstitial quartz and others may have a small percentage of calcium present in a sodic plagioclase feldspar. Accessory minerals include apatite, zircon and magnetite, with rare biotite, hornblende or pyroxene.".
- Bostonite label "Bostonite".
- Bostonite sameAs Bostonitt.
- Bostonite sameAs m.05xx44.
- Bostonite sameAs Q4948267.
- Bostonite sameAs Q4948267.
- Bostonite wasDerivedFrom Bostonite?oldid=675751130.
- Bostonite isPrimaryTopicOf Bostonite.