perthite वाक्य
उदाहरण वाक्य
मोबाइल
- The resulting intergrowth of the two feldspars is called perthite.
- The intergrowths in perthite have a great variety of shapes.
- Perthite feldspar within a pegmatite often shows gigantic perthitic texture visible to the naked eye.
- Alkali feldspar dominates, commonly represented by orthoclase and the exsolved lamellar albite, form perthite.
- Perthite is typical of many granites.
- This is mostly made from fine grained quartz and Perthite, but is coloured red yellow and brown.
- The largest documented single crystal of perthite was found in Hugo Mine in South Dakota and measured about x x.
- Perthite is an intergrowth of alkali feldspar of intermediate composition : the coarseness of perthitic intergrowths is related to cooling rate.
- In the acid rocks the common feldspars are orthoclase, perthite, microcline, and oligoclase all having much silica and alkalis.
- The alkaline feldspar is not potassic, but generally sodic-potassic, which is characterized by interlocking anorthoclase, called perthite.
- This is coloured yellow brown to pink and contains fine crystals of perthite, and oligoclase and quartz, coloured by limonite.
- The feldspar has partly unmixed on the micro-scale to form a perthite, and the presence of the alternating alkali feldspar and titanomagnetite present.
- Sodalite-syenites in which sodalite very largely or completely takes the place of nepheline occur in Greenland, where they contain also microcline-perthite, aegirine, arfvedsonite and eudialyte.
- The bedrock of the landscape around Gold Butte Peak and nearby Bonelli Peak consist of gray, Proterozoic, porphyritic perthite-quartz-biotite granites and quartz monzonites that are also classified as rapakivi granite.
- Because Na and K are extremely mobile by solid-state diffusion, cooling gives rise to multiple forms of unmixing products, e . g . various kinds of perthite . " Due to slow reaction kinetics, feldspars usually do not attain equilibrium states and thus their thermodynamic behaviour is not yet fully understood ."
- "' Perthite "'is used to describe an intergrowth of two feldspars : a host grain of potassium-rich alkali feldspar ( near K-feldspar, KAlSi 3 O 8, in composition ) includes exsolved lamellae or irregular intergrowths of sodic alkali feldspar ( near albite, NaAlSi 3 O 8, in composition ).
- Callander Bay contains uncommon rocks such as nepheline syenite and carbonatite and the minerals : aegirine, amphibole, analcime, apatite, barite, biotite, calcite, cancrinite, chalcopyrite, chlorite, diopside, dolomite, fluorite, garnet, hematite, kaersutite, magnetite, muscovite, nepheline, olivine, perthite, pyrite, pyroxene and pyrrhotite.
perthite sentences in Hindi. What are the example sentences for perthite? perthite English meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.