Buy Feldspar Mineral

Feldspar is the name given to a group of minerals distinguished by the presence of alumina and silica (SiO2) in their chemistry. This group includes aluminum silicates of soda, potassium, or lime. It is the single most abundant mineral group on Earth.

Feldspar is a common raw material used in glassmaking, ceramics, and to some extent as a filler and extender in paint, plastics, and rubber. In glassmaking, alumina from feldspar improves product hardness, durability, and resistance to chemical corrosion.

We mine and process several grades of feldspar with a wide range of applications:

POTASSIUM FELDSPAR

BODY GRADE	SECOND GRADE	FIRST GRADE
ALKALI – 8 %	ALKALI – 10 %	ALKALI – 13 %
ALUMINA – 14 %	ALUMINA – 16 %	ALUMINA – 17 %
IRON – 0.3%	IRON – 0.2%	IRON – 0.1%
L VALUE	L VALUE	L VALUE
Detailed Specs	Detailed Specs	Detailed Specs

SODIUM FELDSPAR

SECOND GRADE	FIRST GRADE
ALKALI – 6%	ALKALI – 8%
ALUMINA – 15%	ALUMINA – 17%
IRON – 0.15%	IRON – 0.05 – 0.15%
Detailed Specs	Detailed Specs