• Anorthite - Wikipedia

    en.wikipedia.org/wiki/Anorthite 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. At 1 atmosphere, anorthite melts at 1553 °C.. Occurrence. Anorthite is a rare compositional variety of plagioclase.
  • Anorthite | mineral | Britannica

    www.britannica.com/science/anorthite 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 occurs in basic igneous rocks, as at Trentino, Italy; Södermanland,
  • Anorthite | Definition of Anorthite by Merriam-Webster

    www.merriam-webster.com/dictionary/anorthite Anorthite definition is - a white, grayish, or reddish feldspar occurring in many igneous rocks.
  • Anorthite: Mineral information, data and localities.

    www.mindat.org/min-246.html Anorthite: Angel R J, Carpenter M A, Finger L W (1990) Structural variation associated with compositional variation and order-disorder behavior in anorthite-rich feldspars sample #115082a American Mineralogist 75 150-162: 1990: South of Blantyre, Nyasalad (Malawi) 0: 293: 0020104: Anorthite
  • Anorthite | Definition of Anorthite at Dictionary.com

    www.dictionary.com/browse/anorthite Anorthite definition, a white or gray feldspar mineral, CaAl2Si2O8, calcic plagioclase. See more.
  • Anorthite - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/engineering/anorthite Mullite, anorthite, and other Al-Si minerals (Fig. 2.15) may be formed by solid-state reactions (French et al., 2001) or may crystallize from the melt.The mineral phase depends upon the temperature attained and the rapidity of cooling, with the BA tending to cool more slowly, as well as the chemical composition of the material and the potential for interaction between the phases involved.
  • Anorthite Mineral Data

    www.webmineral.com/data/Anorthite.shtml Anorthite Crystallography: Axial Ratios: a:b:c =0.635:1:1.1003 : Cell Dimensions: a = 8.177, b = 12.877, c = 14.169, Z = 8; alpha = 93.166°, beta = 115.85°, gamma ...
  • ANORTHITE (Calcium Aluminum Silicate)

    www.galleries.com/Anorthite Anorthite is an end member and one of the rarer members of the plagioclase series. The plagioclase series comprises minerals that range in chemical composition from pure NaAlSi3 O8, Albite to pure CaAl2 Si2 O8 , anorthite.Anorthite by definition must contain no more than 10% sodium and no less than 90% calcium in the sodium/calcium position in the crystal structure.
  • Anorthite : ClassicGems.net

    classicgems.net/gem_anorthite.htm Anorthite is the rarest member of the Plagioclase Feldspars of the Feldspar Group of minerals that includes Albite, Amazonite, Andesine, Anorthite, Bytownite, Hyalophane, Labradorite, Moonstone, Oligoclase, Orthoclase, Sanidine and Sunstone. The Plagioclase Feldspars form a series between Albite and Anorthite.
  • Anorthosite - Wikipedia

    en.wikipedia.org/wiki/Anorthosite Mineralogically, labradorite is a compositional term for any calcium-rich plagioclase feldspar containing 50–70 molecular percent anorthite (An 50–70), regardless of whether it shows labradorescence. The mafic mineral in Proterozoic anorthosite may be clinopyroxene, orthopyroxene, olivine, or, more rarely, amphibole.