orthoclase mineral

  • What color is orthoclase feldspar - answers

    Orthoclase is a common mineral and a member of the potassiumfeldspar group It is used in the manufacture of glass andceramics One type is the moonstone gemstone share with friends

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  • Mineral Properties, Photos, Uses and Descriptions

    Spodumene is a pegmatite mineral, an ore of lithium and sometimes a gemstone Uses of Gold Gold has unique properties that make it one of the most useful minerals

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  • Orthoclase: The gemstone yellow Orthoclase information and ,

    Orthoclase as a mineral is a common feldspar, but when described as a gemstone it refers to a rare transparent yellowish form of the mineral Sanidine that is found in Madagascar Until recently, this gemstone was though to be Orthoclase, and only recently have analyses determined it as being SanidineDespite this, it is still called Orthoclase on the gemstone market since the name has already .

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  • Orthoclase | Revolvy

    Mar 25, 2014· Orthoclase Orthoclase, or orthoclase feldspar (endmember formula KAlSiO), 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 It is a type of potassium feldspar, also known as K-feldspar The gem known as moonstone (see below) is largely composed of orthoclase

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  • Orthoclase - an overview | ScienceDirect Topics

    Orthoclase feldspar may arise from regional metamorphic processes, and is a common ingredient in various crystalline schists (Table 61) Orthoclase changes to kaolinite (Section 5212) and sericite with the process of kaolinization and sericitization, respectively

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  • Orthoclase Value, Price, and Jewelry Information ,

    Orthoclase Value, Price, and Jewelry Information Home » Gemstones » Orthoclase Value, Price, and Jewelry Information Rough orthoclase Orthoclase Orthoclase is best known for moonstone It is occasionally a transparent, faceted gem , The International Gem Society (IGS) is the world's top resource for gem professionals, enthusiasts, and .

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  • Orthoclase Feldspar Smith College Mineralogy, Fall 20XX

    Using stoichiometry on a theoretical 100g sample, the ratio of moles in the mineral was calculated for each element To calculate the final chemical formula, the assumption was made that the amount oxygen was equal to 8, the number in a perfect sample of orthoclase All the other numbers were ratios of 8 24 Optical Properties

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  • Orthoclase - Handbook of Mineralogy

    Orthoclase KAlSi3O8 °c 2001 Mineral Data Publishing, version 12 Crystal Data: Monoclinic Point Group: 2=m: Crystals commonly short prismatic along [100] or [001], tabular on [010], to 20 cm Cleavable, granular, massive

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  • Orthoclase: The mineral Orthoclase information and pictures

    Orthoclase is one of the most common minerals, and occurs in numerous mineral environments It is polymorphous with the minerals Microcline and SanidineThese three minerals form the Potassium Feldspar groupThey are almost identical in physical properties, and it is sometimes impossible to distinguish one another without x-ray analysis

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  • Feldspar - HyperPhysics Concepts

    Orthoclase: Feldspar is a name given to a class of aluminum-containing silicates which are sometimes called light silicates or "nonferromagnesian silicates" since they don't contain iron or magnesium The feldspars include orthoclase (KAlSi 3 O 8) and plagioclase ((Ca,Na)AlSi 3 O 8) Note that the plagioclase differs from the orthoclase in .

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  • ORTHOCLASE (Potasium Aluminum Silicate)

    Orthoclase is a polymorph of other minerals that share the same chemistry, but have different crystal structur If positive identification between these minerals can not be made by field methods, then the specimen may simply be referred to as a potassium feldspar or K-sparPlagioclase feldspars lack potassium, are light colored and are usually striated

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  • Orthoclase Mineral Gallery in Online Mineral Museum ,

    Online mineral museum photograph archive of minerals: Orthoclase Mineral Gallery Orthoclase Minerals This gallery is part of the photographic archive of minerals The minerals illustrated sold previously and are for photographic reference only Click here to see Online Mineral Gallery

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  • Orthoclase: Pink granite, Mohs hardness and moonstone

    What Is Orthoclase? Orthoclase is a feldspar mineral with a chemical composition of KAlSi 3 O 8It is one of the most abundant rock-forming minerals of the continental crust Orthoclase is most widely known as the pink feldspar found in many granites and as the mineral assigned a hardness of "6" in the Mohs hardness scale

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  • Orthoclase - Metaphysical Directory: Detailed

    Metaphysically, Orthoclase Feldspar has a pleasant, refined energy Orthoclase Feldspar can help overcome tragedy, as well as aligning the chakras and meridians of the physical body Once you have attuned to this crystal, Orthoclase Feldspar can bring great ,

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  • Orthoclase R040055 - RRUFF Database: Raman, X-ray ,

    REFERENCES for Orthoclase; American Mineralogist Crystal Structure Database Record: [view record] Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America

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  • Orthoclase - definition of orthoclase by The Free Dictionary

    Define orthoclase orthoclase synonyms, orthoclase pronunciation, orthoclase translation, English dictionary definition of orthoclase n A white to yellowish red monoclinic mineral of the potassium feldspar group that forms from medium- to low-temperature magmas n a white to pale yellow,.

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  • Orthoclase Mineral Information photos and Facts, gems

    Sanidine, or glassy feldspar, is a variety occurring in glassy, often transparent, phenocrysts in eruptive rocks The name orthoclase refers to the right-angle cleavage possessed by the mineral Feldspar is derived from the German word feld, meaning field Orthoclase ,

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  • Orthoclase - an overview | ScienceDirect Topics

    Orthoclase feldspar may arise from regional metamorphic processes, and is a common ingredient in various crystalline schists (Table 61) Orthoclase changes to kaolinite (Section 5212) and sericite with the process of kaolinization and sericitization, respectively

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  • Orthoclase - Chemeketa Community College

    Orthoclase is the characteristic potassium feldspar of igneous rocks, occuring both alone and in perthitic intergrowth with albite; it also occurs in some metamorphic rocks The variety adularia is formed at comparatively low temperatures, typically in veins Microcline, being an ordered polymorph, is usually formed at lower temperatures than .

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  • Orthoclase - Chemeketa Community College

    Orthoclase is the characteristic potassium feldspar of igneous rocks, occuring both alone and in perthitic intergrowth with albite; it also occurs in some metamorphic rocks The variety adularia is formed at comparatively low temperatures, typically in veins Microcline, being an ordered polymorph, is usually formed at lower temperatures than .

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  • Orthoclase Mineral Specimen For Sale - dakotamatrix

    Cream colored twinned Orthoclase crystal that is a textbook example of a Carlsbad twin with interpenetrating sections seperated by a single plane There are also a couple Pyrite cubes to 3-4mm partially embedded in the Orthoclase, adding to the oddness of the piece

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  • Orthoclase Mineral Physical - Optical Properties, Uses and ,

    Definition of Orthoclase An important rock-forming mineral, orthoclase is the potassium-bearing end member of the potassium sodium feldspar solid-solution seri It is a major component of granite its pink crystals give granite its typical color Crystalline orthoclase can also be white, colorless, cream, pale yellow, or brownish red

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