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How to pronounce plagioclase in English. The definition of plagioclase is: any of a series of triclinic feldspars that form...
Plagioclase definition: any of the feldspar minerals varying in composition from acidic albite, NaAlSi3O8, to basic anorthite, CaAl2Si2O8, found in most igneous rocks.
Plagioclase is the name of a group of feldspar minerals that form a solid solution series ranging from pure albite, Na (AlSi 3 O 8 ), to pure anorthite, Ca (Al 2 Si 2 O 8 ). Minerals in this series are a homogenous mixture of albite and anorthite. The names of the minerals in the series are arbitrarily given based upon their relative abundance ...
May 21, 2024 · plagioclase (usually uncountable, plural plagioclases) ( mineralogy) Any of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium . These crystals are of one of the most abundant minerals in nature – feldspar; furthermore, they are of a particular kind of feldspar rich in the element calcium, termed ...
Here are 4 tips that should help you perfect your pronunciation of 'plagioclase feldspar': Break 'plagioclase feldspar' down into sounds: say it out loud and exaggerate the sounds until you can consistently produce them. Record yourself saying 'plagioclase feldspar' in full sentences, then watch yourself and listen. You'll be able to mark your ...
Plagioclase Feldspar properties. Typically white to gray, may also range from colorless, through shades of off-white, to yellowish, pink, reddish brown or nearly black. One perfect cleavage and one good cleavage that meet at nearly 90°. Increases from 2.6 to 2.8 depending on amount of calcium.
Properties. Plagioclase is the most common and abundant mineral group in the Earth's crust. Part of the feldspar family of minerals, it is abundant in igneous and metamorphic rock, and it is also common as a detrital mineral in sedimentary rock. [6] [7] It is not a single mineral, but is a solid solution of two end members, albite or sodium ...
