Feldspar Raw

Raw Material

Feldspar Raw

Description

Feldspar belongs to group of rock-forming tecto-silicate. Earth crust is main component of feldspar. It occurs from intrusive and extrusive igneous rocks. Feldspar is mainly found in granite and pegmatite. It is one of the hard minerals. It is a group of aluminosilicate minerals, contains calcium and sodium or potassium. Sometimes it can be confused with quartz. Feldspar is cleavage minerals, this property is main feature which differentiate it with quartz. Feldspar is the most common mineral on earth

Feldspar is common base raw material of glassmaking, clay and ceramic industry.

Feldspars (KAlSi₃O₈ – NaAlSi₃O₈ – CaAl₂Si₂O₈)

Feldspars raw crystallize from magma in intrusive and extrusive igneous rocks. Feldspar crystallizes as veins.

Feldspar consists with high amount of mica and iron oxides. Feldspars are alumina silicates soda (sodium oxide), potassium (potassium oxide), or lime (calcium oxide). Feldspar-quartz rocks rich in alkali. Feldspar raw can be categories in three classes: Barium feldspars, Plagioclase feldspars and Alkali feldspars.

Feldspar raw contains Silica, Alumina, Sodium Oxide, Potassium Oxide, Titanium Oxide, Calcium Oxide, Ferric Oxide.

Properties		Sodium - 01	Sodium - 02
Silica	SiO2	67% (+/- 1%)	70% (+/- 2%)
Alumina	Al₂O₃	18% (+/- 0.5%)	18% (+/- 2%)
Sodium Oxide	Na₂O	11.00% (+/- 1%)	8% (+/- 1%)
Potassium Oxide	K₂O	0.5% (+/- 0.5%)	4% (+/- 1%)
Titanium Oxide	TiO₂	Nil	Nil
Calcium Oxide	CaO	Nil	0.25% (+/- 0.05%)
Magnesium Oxide	MgO	Nil	0.25% (+/- 0.05%)
Ferric Oxide	Fe₂O₃	0.1% (+/- 0.05%)	0.4%
Loss on Ignition	LOI	0.1%	0.2%