• Microcline - Wikipedia

    en.wikipedia.org/wiki/Microcline Microcline (KAlSi 3 O 8) is an important igneous rock-forming tectosilicate mineral.It is a potassium-rich alkali feldspar.Microcline typically contains minor amounts of sodium.It is common in granite and pegmatites.Microcline forms during slow cooling of orthoclase; it is more stable at lower temperatures than orthoclase. Sanidine is a polymorph of alkali feldspar stable at yet higher ...
  • Microcline | mineral | Britannica

    www.britannica.com/science/microcline Microcline is the form of potassium feldspar that is stable at the lowest temperatures. Its structure differs from that of orthoclase because of a different distribution of silicon and aluminum atoms in its aluminosilicate crystal framework. Microcline exhibits a variation in symmetry.
  • Microcline | Definition of Microcline at Dictionary.com

    www.dictionary.com/browse/microcline Microcline definition, a mineral of the feldspar group, potassium aluminum silicate, KAlSi3O8, identical in composition with orthoclase but having triclinic instead of monoclinic crystals, used in making porcelain. See more.
  • Microcline: The feldspar mineral Microcline information ...

    www.minerals.net/mineral/microcline.aspx Microcline is an extremely common mineral, and only remarkable occurrences are mentioned here. Excellent crystals associated with Aegirine come from Mount Malosa, Malawi. Other worldwide sources of large Microcline crystals are the Erongo Mountains, Namibia; Papachacra, Catamarca, Argentina; the Shigar Valley, Skardu, Pakistan.
  • Microcline Mineral Physical - Optical Properties, Uses ...

    geologyscience.com/minerals/microcline Microcline is one of the most common feldspar minerals. It can be colorless, white, cream to pale yellow, salmon pink to red, or bright green to blue-green. Microcline forms short prismatic or tabular crystals that are often of considerable size: single crystals can weigh several tons and reach yards in length.
  • Microcline - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/earth-and-planetary-sciences/microcline Microcline. Microcline (KAlSi3O8) is the triclinic low-temperature K–feldspar stable at temperatures lower than 500°C. It is usually formed by recrystallization from feldspar, and sometimes by direct crystallization from magma and hydrothermal processes.
  • Microcline Mineral Data

    webmineral.com/data/Microcline.shtml General Microcline Information : Chemical Formula: KAlSi3O8 : Composition: Molecular Weight = 278.33 gm Potassium 14.05 % K 16.92 % K 2 O: Aluminum 9.69 % Al 18.32 % Al 2 O 3: Silicon 30.27 % Si 64.76 % SiO 2: Oxygen 45.99 % O: 100.00 % 100.00 % = TOTAL OXIDE
  • Microcline: Mineral information, data and localities.

    www.mindat.org/min-2704.html Microcline: Allan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-275: 1997: 1.4: 293: 0006651: Microcline: Allan D R, Angel R J (1997) A high-pressure structural study of microcline (KAlSi3O8) to 7 GPa European Journal of Mineralogy 9 263-275: 1997: 2.9: 293: 0006652 ...
  • MICROCLINE (Potassium Aluminum Silicate)

    www.galleries.com/Microcline Microcline is a common, but not a well known mineral and has been used as a semi-precious stone under the names of Amazonite and Perthite. Amazonite is a variety that is deep green and is suitable for carving and polishing.
  • Microcline - Handbook of Mineralogy

    www.handbookofmineralogy.org/pdfs/Microcline.pdf Microcline KAlSi3O8 °c 20 1M i nera lD t Pub sh g, v o . Crystal Data: Triclinic. Point Group: 1: Prismatic crystals elongated along [001] or [100], perhaps the largest of any species, to 50 m and 13,500 t.