Anorthoclase is a mineral that belongs to the feldspar group. It is a rare mineral that is found in igneous rocks such as granite, syenite, and nepheline syenite. …
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Anorthoclase is strictly a K-rich variety of albite. It was long used (and still is by petrologists) as an intermediate member of the high albite – sanidine (alkali feldspar) solid solution series, in …
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Anorthoclase is a mineral that belongs to the feldspar group. It is a rare mineral that is found in igneous rocks such as granite, syenite, and nepheline syenite. Anorthoclase is often confused …
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Anorthoclase is strictly a K-rich variety of albite. It was long used (and still is by petrologists) as an intermediate member of the high albite – sanidine (alkali feldspar) solid solution series, in which the albite member exists in larger …
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Anorthoclase refers to the triclinic sodium terms of the sanidine-albite series. It is in a way an intermediate feldspar between the alkaline potassium and sodium feldspars (sanidine) and the …
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Anorthoclase, a sodium potassium aluminum silicate mineral of the feldspar group, was first reported from Franklin by Palache (1935), who gave an analysis, said by Frondel et al. (1966) …
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The anorthoclase phenocrysts were crushed and HF etched to yield aliquots containing 30%, 10%, and 1% melt inclusions. The step-heated anorthoclase with 30% and …
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Anorthoclase forms in sodium-rich igneous zones. It commonly occurs with ilmenite, apatite, and augite . Much anorthoclase exhibits a gold, …
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Detailed description, properties, locality information guide about the feldspar mineral anorthoclase.
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Anorthoclase forms in sodium-rich igneous zones. It commonly occurs with ilmenite, apatite, and augite . Much anorthoclase exhibits a gold, bluish, or greenish schiller …
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Anorthoclase is the only alkali feldspar that is not K-feldspar. It is sodic in composition, optically triclinic and characterized by a twinning similar to microcline but on a smaller scale.
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Anorthoclase refers to the triclinic sodium terms of the sanidine-albite series. It is in a way an intermediate feldspar between the alkaline potassium and sodium feldspars (sanidine) and the sodium plagioclases (albite).
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anorthoclase megacrysts compared with anortho- clase phenocrysts. Apparently, feldspars derived from their alkali basalt magma in a normal process of fractionation do not have a …
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Mineral Group: Feldspar (alkali) group; intermediate between low sanidine and high albite. In high-temperature sodic volcanic and hypabyssal rocks. Typically in a ̄ne-grained groundmass or …
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