Potash feldspar powder

Feldspar is an aluminosilicate mineral of potassium, sodium, calcium, barium and other alkali metals or alkaline earth metals. The crystal structure is a shelf structure. Its main components are SiO2, Al2O3, K2O, Na2O, CaO and so on. Feldspar minerals are the most widely distributed in the earth's crust, accounting for about 50% of the total weight of the earth's crust. They are a common rock forming mineral, of which 60% of them exist in magma, 30% in metamorphic rocks and 10% in sedimentary rocks mainly in clastic rocks, but only when they are fairly rich, the feldspar may become an industrial mineral. There are four main components of feldspar: potash feldspar, albite, calcium feldspar and barium feldspar. The main physical and chemical properties of feldspar minerals are as follows:
Potassium feldspar: K2O.Al2O3.6SiO2, in which K2O9.55%, Al2O3 16%, SiO2 70%, density 2.56g/cm 3, Moir hardness 6, monoclinic system, white, red, milky white, and melting point 1290. C.
Sodium feldspar: Na2O.Al2O3.6SiO2, in which Na2O 8% is below, K2O 5-6%, Al2O3 16%, SiO2 70%, density 2.605g/cm 3, Moir hardness 6, three cable-stayed system, color white, and melting point 1100 o C.
1. Characteristics and chemical components:
The hardness of feldspar fluctuates at 6-6.5, and its specific gravity fluctuates at 2-2.5. It is brittle, has high compressive strength and has strong chemical stability to acids. The color of potash feldspar is mostly flesh red and gray and white brown. Albite is white, gray and light yellow, and the feldspar is white or light gray.
Two, uses: glass nozzle, picture tube, ceramic, enamel, glass, welding rod and so on.
The most common mineral in the earth's crust is feldspar, which is also found on the moon and meteorites. Within the depth of 15 km underground, feldspar accounts for 60% of the total crustal weight. Feldspar is the main constituent of igneous rock, and is also common in metamorphic rocks and sedimentary rocks. Feldspar is a kind of aluminosilicate mineral containing calcium, sodium and potassium. It has many kinds, such as albite, calcite, barium feldspar, barium feldspar, micro plagioclase, ortho feldspar, and feldspar. They all have glassy luster, various colors, colorless, white, yellow, pink, green, gray, black and so on. Some are transparent and some are translucent. Feldspar itself should be colorless and transparent. It is colored or not completely transparent because it contains other impurities. Some are lumpy, some are plate shaped, some are columnar or needle shaped. Usually in igneous rocks and metamorphic rocks, the feldspar is very small, only 0.1 to 10 millimeters, up to 5~10 centimeters in the porphyry, and some in the pegmatite of some tens of meters. Feldspar is a raw material for ceramics and glass industry. Some feldspars have beautiful colourful or faint colors, and can be used as gem materials.