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 Feldspar group
potassium feldspar- Sodium feldspar-sodium potassium feldspar

General potassium feldspar

Orthoclase (endmember formula KAlSi3O8) is an important tectosilicate mineral which forms igneous rock
It is the most abundant minerals about *0 % of the distribution minerals in the earth crust in rocks from acidic to ultra basic rocks , occur as pegmatite veins ,cutting through the basement intrusive and volcanic rocks. the most important one is pegmatite .
Feldspar minerals are sodium, potassium, and calcium aluminosilicates. Their ores are commonly associated with quartz and mica, kaolin, garnet, or iron minerals depending upon the type of deposit . also there is wadi feldspar
The exploration by open cast way and the ore collected manually .
Orthoclase is a common constituent of most granites and other felsic igneous rocks and often forms huge crystals and masses in pegmatite.
Typically, the pure potassium endmember of orthoclase forms a solid solution with albite, the sodium endmember (NaAlSi3O8), of plagioclase. While slowly cooling within the earth, sodium-rich albite lamellae form by exsolution, enriching the remaining orthoclase with potassium. The resulting intergrowth of the two feldspars is called perthite. also there is wadi feldspar
 

General Sodium feldspar

It is one of  the most abundant minerals in the earth crust in rocks from acidic to ultra basic rocks , occur as pegmatite veins ,cutting through the basement intrusive and volcanic rocks. the most important one is pegmatite .
Feldspar minerals are sodium, potassium, and calcium aluminosilicates. Their ores are commonly associated with quartz and mica, kaolin, garnet, or iron minerals depending upon the type of deposit .
The exploration by open cast way and the ore collected manually .