ProphetesAI is thinking...
anorthite
Answers
MindMap
Loading...
Sources
anorthite
anorthite Min. (æˈnɔːθaɪt) [f. Gr. ἀν priv. + ὀρθ-ός straight + -ite; named by Rose in 1823.] ‘Lime-feldspar,’ a mineral placed by Dana in the Feldspar group of Unisilicates, and occurring in small triclinic or ‘anorthic’ glassy crystals.1833 Lyell Elem. Geol. (1865) 590 Anorthite, so called from th...
Oxford English Dictionary
prophetes.ai
Anorthite
Anorthite is found in mafic igneous rocks. Anorthite is rare on the Earth but abundant on the Moon. Anorthite also refers to plagioclase compositions with more than 90 molecular percent of the anorthite endmember.
wikipedia.org
en.wikipedia.org
bytownite
bytownite Min. (ˈbaɪtaʊnaɪt) [f. Bytown, (now Ottawa) in Canada, where it occurs + -ite.] A variety of anorthite.1868 Dana Min. 340.
Oxford English Dictionary
prophetes.ai
Endmember
As another example, the tectosilicate feldspar can be described as a solid solution of the endmembers K-feldspar (), albite () and anorthite ().
wikipedia.org
en.wikipedia.org
Meionite
Meionite also breaks down to grossularite + kyanite + quartz + calcite at high pressure, similar to the upper pressure limits of anorthite .
wikipedia.org
en.wikipedia.org
cyclopite
cyclopite Min. (ˈsɪkləʊpaɪt, ˈsaɪ-) [f. L. Cyclōpi-us (Cyclopia saxa) + -ite.] A variety of anorthite, found in the Cyclopean islands near Sicily.1811 Pinkerton Petral. II. 499 The analcimes of Haüy, which he proposes to call cyclopites, because they were first found in the rocks of the Cyclops. 186...
Oxford English Dictionary
prophetes.ai
Yagiite
crystallized in an environment rich in magnesium and associated with other minerals such as diopside, whitlockite, tridymite, plagioclase of the type albite-anorthite
wikipedia.org
en.wikipedia.org
indianite
indianite (ˈɪndɪənaɪt) [-ite.] 1. Min. A variety of anorthite found in India, where it forms the matrix of corundum.1814 T. Allan Min. Nomen. 18 (Chester). 1873 Proc. Amer. Phil. Soc. XIII. 375 A white, grayish and reddish variety of anorthite, called indianite. 2. Name given to a solution of caoutc...
Oxford English Dictionary
prophetes.ai
Subsolvus
The two types of feldspar are usually:
plagioclase: a member of the anorthite-albite series (CaAl2Si2O8-NaAlSi3O8)
alkali feldspar: a member of the orthoclase-albite In fact ternary feldspars (comprising albite+orthoclase+anorthite) are believed to have been present in the high temperature state of the rock before cooling
wikipedia.org
en.wikipedia.org
christianite
christianite Min. (ˈkrɪstjənaɪt) [See quot. 1868.] a. A variety of anorthite. † b. A proposed synonym of phillipsite.1826 Amer. Jrnl. Sc. XI. 263 The color of Christianite is rarely yellow. 1868 Dana Min. (1880) 340 Christianite was named by Monticelli and Covelli after the prince Christian Friedric...
Oxford English Dictionary
prophetes.ai
Cumulate rock
These accumulations typically occur on the floor of the magma chamber, although they are possible on the roofs if anorthite plagioclase is able to float In the above example, the cumulate of anorthite + enstatite is rich in calcium and magnesium, and the melt is depleted in calcium and magnesium.
wikipedia.org
en.wikipedia.org
Andesine
Its chemical formula is (Ca, Na)(Al, Si)4O8, where Ca/(Ca + Na) (% anorthite) is between 30 and 50%.
wikipedia.org
en.wikipedia.org
Labradorite
It has an anorthite percentage (%An) of between 50 and 70. The specific gravity ranges from 2.68 to 2.72. The streak is white, like most silicates. i.e., with an anorthite content of ~70 to 90%) particularly exemplify this.
wikipedia.org
en.wikipedia.org
Chromitite
peridotite rocks, at times intergrown with other oxides such as magnetite and ilmenite, and silicates such as olivine, pyroxene, plagioclase feldspar (mainly anorthite
wikipedia.org
en.wikipedia.org
Oligoclase
In chemical composition and in its crystallographic and physical characters it is intermediate between albite (NaAlSi3O8) and anorthite (CaAl2Si2O8). The albite:anorthite molar ratio of oligoclase ranges from 90:10 to 70:30.
wikipedia.org
en.wikipedia.org