feldspar is a common aluminium silicate minerals that has many usage in industry field. our feldspar can be made to order.

Feldspar is the Aluminum silicate minerals of Alkali metal or alkaline earth metals such as potassium, sodium, calcium, barium, etc. It is one of the most important rock forming minerals with the main contents of SiO2,Al2O3,K2O, Na2O,CaO. Feldspar can be assorted by its chemical composition:(1). K-feldspar, K2O•Al2O3•6SiO2;(2). Albite, Na2O•Al2O3•6SiO2 ;(3). Anorthite, CaO•Al2O3•2SiO2;(4). Celsian; BaO•Al2O3•2SiO2

SiO2: 68.5% max

Al2O3: 16.5% min

Fe2O3: 0.10% max

K2O: 10.5% min

Na2O: 2.5% min

TiO2: 0.05%

Loss: 0.84

Particle size: 325 mesh

our feldspar can also produced according to buyer's requirement.

feldspar