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Feldspar Group Minerals. Feldspar is the name of a large organization of rock-forming silicate minerals that make up over 50% of Earth's crust. They are discovered in igneous, metamorphic, and sedimentary rocks in all components of the sector. Feldspar minerals have very comparable structures, chemical compositions, and bodily properties.
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Feldspars are aluminosilicates containing varying amounts of calcium, potassium, or sodium. In glassmaking, feldspar provides alumina for improving hardness, durability, and resistance to chemical corrosion. In ceramics, feldspar is used as a flux, lowering the vitrifying temperature of a ceramic body during firing and forming a glassy phase.
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Bezeichnung für spaltbares Mineral, Feldspat. Feldspat mit Perlmutterglanz Mineral. Mondgestein, ein Feldspat. weißer Feldspat. quarzhaltiger Feldspat. als Schmuckstein verwendeter Feldspat. Mondstein (Feldspat) reiner, weißer Feldspat. Sandstein mit mehr als 25 % Feldspat.
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Feldspäte werden wegen ihres Gehalts an Aluminiumoxid und Alkalien in vielen unterschiedlichen Anwendungen eingesetzt, in unserem Falle insbesondere in Glas und Keramik. Die meisten europäischen Lagerstätten enthalten sowohl Kaliumfeldspat als auch Natriumfeldspat, also Mischfeldspäte.
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Auf dieser Seite findest Du alle Kreuzworträtsel-Lösungen für. Feldspat führender Sandstein. Kristalliner Schiefer aus Quarz, Glimmer, Feldspat. Feldspat. Fundort von Feldspat in Schweden. Symbol für ein strahlendes Gesicht (wie ein ...) Natron-Kalk-Feldspat. Symbol für ein heiteres Leben und ein friedliches Dasein.
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Perthitic feldspar Dan Patch SD.jpg 540 × 390; 42 KB. Plagioklas-Feldspat im Granit.JPG. Potassium feldspar (32499528651).jpg. Quartz crystals overgrown by stilpnomelane..jpg. Rapakivi WGR.JPG. Rechberg NDOÖ 568 Elefantenstein Feldspat-3587.jpg. Skaleń, bliźniak karlsbadzki ...
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İspanya 2014 yılında 49 milyon 763 bin ABD Doları feldispat ithal etmiştir.İspanya'nın feldispat ithal ettiği ülkelerin başında Türkiye 37 milyon 491 ABD Doları ile ilk sırada ilk yer almaktadır.İspanya'nın feldispat ithal ettiği diğer ülkeler …
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Physical Properties. ┗ Felspars have a monoclinic or triclinic crystal system. ┗ The refractive index of this mineral is 1.518 – 1.526. ┗ The cleavage of feldspar is two. It has two planes intersecting each other at an angle of 90º. ┗ The hardness of this mineral is 6 – 6.5 on the Mohs hardness scale.
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Lexikon der Geowissenschaften Feldspäte. Feldspäte, gehören zu den Silicaten mit Gerüststrukturen ( Tektosilicate ), die sich aus SiO 2 -Strukturen ableiten lassen, indem ein Teil des SiO 4+ durch Al 3+ ersetzt wird ( Alumosilicate ). Sie sind die häufigste Mineralgruppe und mit mehr als 60% am Aufbau der Erdkruste beteiligt.
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Un feldspath est un minéral de la famille des tectosilicates, dont la composition est celle d'un aluminosilicate de sodium, de potassium ou de calcium. Il existe de nombreux feldspaths, dont les principaux sont l' orthose ou le microcline ( potassique ), l' albite ( sodique) et l' anorthite ( calcique ).
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Feldspar is the name of a large group of rock-forming silicate minerals that make up over 50% of Earth's crust. [1] They are found in igneous, metamorphic, and sedimentary rocks in all parts of the world. Feldspar minerals have very similar structures, chemical compositions, and physical properties. Common feldspars include orthoclase (KAlSi 3 ...
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Etimologia. Il nome Feldspato deriva dal termine tedesco Feldspat (da Feld, ossia "campo", e Spat che indica in modo generico un minerale a struttura laminare).. L'albite, dal latino albus, è chiamata così per via del suo colore biancastro.. Composizione chimica. Tutti feldspati hanno formula generale X(Al, Si) 4 O 8, in cui X può essere K +, Na +, Ba ++, …
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Feldspat je naziv za skupinu značajnih petrogenih minerala, koji tvore više od 60% Zemljine kore. Tvrdoća po Mohsovoj ljestvici iznosi 6 do 6,5. Feldspati se mogu javiti i u intruzivnim i u efuzivnim magmatskim stijenama, što znači da mogu kristalizirati i dok se magma nalazi u Zemljinoj kori, kao i kada se izlije na površinu.
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Denumirea de Feldspat provine din suedeză (fjäll = „munte"). Alte denumiri: orthoklast, ortoză; mineralul acesta este un silicat foarte răspândit, având compoziția chimică (Ba,Ca,Na,K,NH 4)(Al,B,Si) 4 O 8 (elementele din paranteze se pot substitui reciproc). Sistemul de cristalizare este monoclinic sau triclinic, cu duritatea de 6-6,5.
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Aug 10, 2019· Feldspars are hard minerals, all of them with a hardness of 6 on the Mohs scale. This lies between the hardness of a steel knife (5.5) and the hardness of quartz (7). In fact, feldspar is the standard for hardness 6 in the Mohs scale. Feldspars usually are white or nearly white, though they may be clear or light shades of orange or buff.
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