Feldspar
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a group of rock-forming tectosilicate minerals that make up as much as 60% of the Earth's crust. Feldspars crystallize from magma as veins in both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock. Rock formed almost entirely of calcic plagioclase feldspar (see below) is known as anorthosite. Feldspars are also found in many types of sedimentary rocks.
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Feldspar
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a group of rock-forming tectosilicate minerals that make up as much as 60% of the Earth's crust. Feldspars crystallize from magma as veins in both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock. Rock formed almost entirely of calcic plagioclase feldspar (see below) is known as anorthosite. Feldspars are also found in many types of sedimentary rocks.
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25بك هذه المقالة تحتاج للمزيد ...... الصوديوم و يتحول إلى كاولينات
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Als Feldspat wird eine große G ...... ereich liegt bei 1150–1250 °C.
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Feldspars (KAlSi3O8 – NaAlSi3O ...... ny types of sedimentary rocks.
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Feldspato (do alemão feld, cam ...... a temperaturas intermediárias.
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Feldspato è il nome di un impo ...... io
* comprendono la celsiana.
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Los feldespatos son un grupo d ...... térreo en los espacios vacíos.
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Skalenie, szpat polny – najpos ...... ega jedna lub dwie pary jonów.
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Un feldspath est un minéral de ...... ps d'andésites ou de basaltes.
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Veldspaat is de naam voor een ...... steen welke geen erts bevat".
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Полевы́е шпа́ты — группа широк ...... ины и другие осадочные породы.
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740,723,238
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Feldspar and nepheline syenite
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25بك هذه المقالة تحتاج للمزيد ...... ء من السيلكا و ايونات من البوت
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Als Feldspat wird eine große G ...... cht. Die Strichfarbe ist weiß.
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Feldspars (KAlSi3O8 – NaAlSi3O ...... ny types of sedimentary rocks.
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Feldspato (do alemão feld, cam ...... mas triclínico ou monoclínico.
@pt
Feldspato è il nome di un impo ...... ali è diviso in quattro parti:
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Los feldespatos son un grupo d ...... llaman feldespatos alcalinos.
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Skalenie, szpat polny – najpos ...... ega jedna lub dwie pary jonów.
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Un feldspath est un minéral de ...... ue) et l'anorthite (calcique).
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Veldspaat is de naam voor een ...... steen welke geen erts bevat".
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Полевы́е шпа́ты — группа широк ...... ины и другие осадочные породы.
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Feldespato
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Feldspar
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Feldspat
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Feldspath
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Feldspato
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Feldspato
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Skaleń
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Veldspaat
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Полевые шпаты
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فلدسبار
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Feldspar
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