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Potash Feldspar

It is used for glass industry, ceramics and manure making.

Feldspar is the name of a group of rock-forming minerals which make up as much as 60% of the Earth's crust.[1]
Feldspars crystallize from magma in both intrusive and extrusive igneous rocks, and they can also occur as compact minerals, as veins, and are also present in many types of metamorphic rock.[2] Rock formed entirely of plagioclase feldspar (see below) is known as anorthosite.[3] Feldspars are also found in many types of sedimentary rock.[4]
This group of minerals consists of framework or tectosilicates. Compositions of major elements in common feldspars can be expressed in terms of three endmembers:
K-feldspar endmember KAlSi3O8[1]
Albite endmember NaAlSi3O8[1]
Anorthite endmember CaAl2Si2O8[1]
Solid solutions between K-feldspar and albite are called alkali feldspar.[1] Solid solutions between albite and anorthite are called plagioclase[1], or more properly plagioclase feldspar
The alkali feldspars are as follows:
• orthoclase (monoclinic),[6] — KAlSi3O8
• sanidine (monoclinic)[7] —(K,Na)AlSi3O8
• microcline (triclinic)[8] — KAlSi3O8
• anorthoclase (triclinic) — (Na,K)AlSi3O8
The plagioclase feldspars are triclinic. The plagioclase series follows (with percent anorthite in parentheses):
• albite (0 to 10) — NaAlSi3O8
• oligoclase (10 to 30) — (Na,Ca)(Al,Si)AlSi2O8
• andesine (30 to 50) — NaAlSi3O8 — CaAl2Si2O8
• labradorite (50 to 70) — (Ca,Na)Al(Al,Si)Si2O8
• bytownite (70 to 90) — (NaSi,CaAl)AlSi2O8
• anorthite (90 to 100) — CaAl2Si2O8
The barium feldspars are monoclinic and comprise the following:
• celsian — BaAlSi3O8
• hyalophane — (K,Na,Ba)(Al,Si)4O8
Uses


Feldspar output in 2005. Click the image for the details.
• Feldspar is a common raw material in the production of ceramics and geopolymers.
• Feldspars are used for thermoluminescence dating and optical dating in earth sciences and archaeology
• Feldspar is an ingredient in Bon Ami US brand household cleaner.
• Feldspar is often an anti-caking agent used in powdered forms of non-dairy creamer.
In 2005, Italy was the top producer of feldspar with almost one-fifth world share followed by Turkey, China and Thailand, reports the International Monetary Fund:


The specifications of our products:-
Feldspae:
Na2O 3%
K2O 10.5%
SiO2 65%
Al2O3 18%
Fe2O3 0.1%

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With my best wishes

Kol.officer.doctor
Bahaa badr el-din mahmoud
chairman
Technolab el-bahaa group
Bahaa67@yahoo.com
0020117156569