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  • Orthoclase - Wikipedia
    Orthoclase, or orthoclase feldspar (endmember formula K Al Si 3 O 8), is an important tectosilicate mineral which forms igneous rock The name is from the Ancient Greek for "straight fracture", because its two cleavage planes are at right angles to each other
  • Orthoclase: Pink granite, Mohs hardness and moonstone
    Orthoclase is the feldspar mineral of pink granite, the #6 mineral of the Mohs hardness scale, and one of the two minerals that comprise Moonstone
  • Orthoclase: Mineral information, data and localities.
    Orthoclase is the most common member of the series, being the dominant K-feldspar in most granite, granitic rocks and other plutonic rocks, with an intermediate cooling regime
  • Orthoclase Mineral Physical-Optical Properties, Uses, Occurrence
    An important rock-forming mineral, orthoclase is the potassium-bearing end member of the potassium sodium feldspar solid-solution series It is a major component of granite its pink crystals give granite its typical color
  • Orthoclase | Feldspar, Silicate, Mohs Scale | Britannica
    orthoclase, common alkali feldspar mineral, a potassium aluminosilicate (KAlSi 3 O 8); it usually occurs as variously coloured, frequently twinned crystals in granite Orthoclase is used in the manufacture of glass and ceramics; occasionally, transparent crystals are cut as gems
  • Orthoclase Mineral Data
    From the Greek orthos - "right" and kalo -" I cleave" in allusion to the mineral's right angle of good cleavage Comments: Striated, dark violet crystal of lorenzenite in cream-colored orthoclase Location: Khibiny Massif, Kola Peninsula, Russia Scale: 1 3 x 1 2 cm Comments: Carlsbad twinned crystal of orthoclase
  • Orthoclase: The mineral Orthoclase information and pictures
    Detailed description, properties, locality information guide about the potassium feldspar mineral orthoclase and adularia
  • Orthoclase - Details and Facts - allmineralsrock
    Orthoclase is a mineral that belongs to the feldspar group and is commonly found in igneous rocks It is also known as potassium feldspar and has a chemical composition of KAlSi3O8
  • Orthoclase - Smithsonian National Museum of Natural History
    Orthoclase belongs to the feldspar family of minerals that make up more than half of the Earth's rocky crust Occasionally these common minerals form crystals that are gem quality Orthoclase can be found as a transparent colorless, champagne, or yellow gem resembling citrine quartz or yellow beryl
  • Orthoclase - grokipedia. com
    Feldspar ores containing orthoclase are extracted through open-pit mining, with orthoclase comprising a significant portion of potash feldspar deposits used commercially





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