Anorthite - Wikipedia
Anorthite is the calcium-rich endmember of the plagioclase solid solution series, the other endmember being albite (NaAlSi 3 O 8). Anorthite also refers to plagioclase compositions with more than 90 molecular percent of the anorthite endmember.
Anorthite: Mineral information, data and localities. - mindat.org
Anorthite: Mineral information, data and localities. Named in 1823 by Gustav Rose from the Greek αν and oρθός, "not right angle" or "oblique", in allusion to the oblique triclinic form of the crystals. Feldspar Group. Ca-rich end member of the plagioclase (Albite-Anorthite Series). High- and low-temperature structural modifications exist.
Anorthite Mineral Data
Anorthite Plagioclase. Comments: Opaque white crystal of anorthite with dark brown solidified lava coating. Location: Miyake-jima, Shizuoka, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Anorthite | Igneous, Plutonic, Calcium | Britannica
Anorthite, a feldspar mineral, calcium aluminosilicate (CaAl2Si2O8), that occurs as white or grayish, brittle, glassy crystals. Primarily a rock-forming mineral, it is used in the manufacture of glass and ceramics.
Anorthite: The feldspar mineral Anorthite information and pictures
Detailed description, properties, locality information guide about the plagioclase feldspar mineral anorthite.
Igneous rock - Albite, Anorthite, System | Britannica
4 天之前 · Igneous rock - Albite, Anorthite, System: Most of the common minerals found in igneous rocks are solid-solution phases. These include olivine, pyroxene, amphibole, biotite, and plagioclase feldspars. Crystallization behaviour is illustrated best by using the NaAlSi3O8 (albite or Ab)–CaAl2Si2O8 (anorthite or An) plagioclase system shown in ...
Anorthite | NOVA Mineralogy - nvcc.edu
Anorthite is the calcic end member of the plagioclase feldspar series. In thin section, plagioclase feldspar grains often look like they’re sprinkled with dirt (PPL) or tiny confetti (XPL). You can find the explanation on the plagioclase feldspar page.
Plagioclase Feldspar: A group of common rock-forming minerals - Geology.com
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.
Anorthite – Virtual Museum of Molecules and Minerals
Anorthite is a rare feldspar and its only real use is as specimens for collectors. Found in igneous rocks and in contact metamorphic limestone, notable occurrences include Lake County, California; Franklin, New Jersey; Italy; and the earths moon.
Anorthite - Wikiwand
Anorthite (an = not, ortho = straight) is the calcium endmember of the plagioclase feldspar mineral series. The chemical formula of pure anorthite is CaAl2Si2O8. Anorthite is found in mafic igneous rocks. Anorthite is rare on the Earth but abundant on the Moon.