Feldspars are mostly used in the ceramics, glass making, plastics, rubbers, and paint industry as fillers. Feldspar is a group of silicate minerals and is collectively the most common mineral found on the surface of the Earth. Feldspar glossary term at minerals.net educational reference guide Feldspar Formulas and Structure . The habit is prismatic. Feldspar Product Properties The QUARTZ Corp is a key supplier of high-purity, low-iron feldspar products, sourced in Spruce Pine, North Carolina. Twinning is common. Physical & Optical Properties of Feldspar. This mineral is often called potassium feldspar or K-feldspar because potassium always exceeds sodium in its formula. CAS number: 68476-25-5 . Feldspars are important diagnostic minerals in identifying many rocks as well as distinguishing their composition without performing expensive chemical analysis. Formation, Properties, & Varieties of Feldspar. 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses: Ceramic and glass additive . Feldspar . EC number: 270-666-7 . The major rock-forming minerals in the Feldspar group include albite, anorthite, orthoclase and plagioclase. Their alkali content determines product quality and price. Spruce Pine is located 780m above sea level in the Appalachian mountains, and the unique geology in the region gives us contact to some of the world’s largest feldspar and mica crystals in the world. Keywords: chemical extraction, feldspar, organic acids, statistical analysis, microwave Introduction The main feldspar minerals are Na-feldspar (albite), Ca-feldspar (anorthite), and K-feldspar (microcline). Crystallographic Character: Orthoclase is monoclinic; all others are triclinic. ┗ The density of this compound is 2.56 g/cm3. What is common to all the feldspars is the same arrangement of atoms, a framework arrangement, and one basic chemical recipe, a silicate (silicon plus oxygen) recipe. Quartz is another framework silicate, consisting only of oxygen and silicon, but feldspar has various other metals partly replacing the silicon. Physical: Chemical Composition: Microcline and orthoclase; KAlSi 3 O 8. 1.1 Product identifier Product name: Feldspar . Synonyms / trade names: Sodium feldspar . Properties of Feldspar Chemical Properties ┗ Each type of feldspar has a different chemical formula, depending on its composition. Plagiocluse group; from NaAlSi 3 O 8 (albite end) to CaAl 2 Si 2 O 8 (anorthite end). The term silicate stands for a combination of silicon and oxygen. In petrology the group is split into two major groups: They occur as major rock forming minerals in the majority of igneous and metamorphic rocks on earth. 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