Albite is a plagioclase feldspar mineral. Feldspar is the name of a group of rock-forming Minerals which make up as much as 60% of the Earth 's crust. A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition a highly ordered atomic structure and specific It is the sodium endmember of the plagioclase solid solution series. An endmember in Mineralogy is a Mineral that is at the extreme end of a mineral series in terms of purity Plagioclase is a very important series of tectosilicate Minerals within the Feldspar family A solid solution is a Solid - state Solution of one or more solutes in a Solvent. As such it represents a plagioclase with less than 10% anorthite content. Anorthite is a compositional variety of Plagioclase Feldspar. The pure albite endmember has the formula NaAlSi3O8. Sodium (ˈsoʊdiəm is an element which has the symbol Na( Latin natrium, from Arabic natrun) atomic number 11 atomic mass 22 WikipediaNaming Silicon (ˈsɪlɪkən or /ˈsɪlɪkɒn/ silicium is the Chemical element that has the symbol Si and Atomic number 14 Oxygen (from the Greek roots ὀξύς (oxys (acid literally "sharp" from the taste of acids and -γενής (-genēs (producer literally begetteris the It is a tectosilicate. The silicate minerals make up the largest and most important class of rock-forming Minerals They are classified based on the structure of their silicate Ion group
Albite crystallizes with triclinic pinacoidal forms. In Crystallography, the triclinic Crystal system is one of the 7 lattice Point groups A crystal system is described by three basis vectors Its specific gravity is about 2. Specific gravity is defined as the ratio of the Density of a given solid or liquid substance to the density of water at a specific temperature and pressure typically 62 and it has a Mohs hardness of 6 - 6. The Mohs scale of mineral hardness characterizes the scratch resistance of various Minerals through the ability of a harder material to scratch a softer material 5. Albite almost always exhibits crystal twinning often as minute parallel striations on the crystal face. Crystal twinning occurs when two separate crystals share some of the same Crystal lattice points in a symmetrical manner Albite often occurs as fine parallel segregations alternating with pink microcline in perthite as a result of exolution on cooling. See also List of minerals Perthite is used to describe an intergrowth of two Feldspars a host grain of Potassium -rich Alkali feldspar (near K-feldspar KAlSi3O8 It occurs in granitic and pegmatite masses, in some hydrothermal vein deposits and forms part of the typical greenschist metamorphic assemblage for rocks of originally basaltic composition. Granite (ˈɡrænɪt is a common and widely occurring type of intrusive, Felsic, igneous rock. Pegmatite is a very coarse-grained Igneous rock that has a grain size of 20 mm or more such rocks are referred to as pegmatitic. Hydrothermal circulation in its most general sense is the circulation of hot water 'hydros' in the Greek meaning water and 'thermos' meaning heat Greenschist - also known as greenstone - is a general field petrologic term applied to metamorphic and/or altered Mafic Volcanic rock Basalt (bəˈsɔːlt ˈbeisɔːlt ˈbæsɔːlt is a common Extrusive Volcanic rock.
It was first reported in 1815 for an occurrence in Sweden. "Sverige" redirects here For other uses see Sweden (disambiguation and Sverige (disambiguation. The name is from Latin, albus for the typical white color. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome.
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albite
-noun
- (mineralogy) A plagioclase feldspar, the first member of the Albite-Anorthite solid solution series. Primarily a mineral of plutonic rocks, also found in pegmatites. When Albite substitutes for a potassium feldspar in granite, the rock is called quartz monzonite.
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