Feldspar is the group of minerals we distinguish by the presence of aluminum (Al) and silica (SiO4) in their chemistry.

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Martin Meese

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The minerals form in a variety of thermal environments, during the crystallization of liquid rock (magma), by metamorphism of rocks deep in the earth, and in sedimentary processes.

LKAB Minerals’ Feldspar is a plagioclase feldspar (Sodium Feldspar).

White powder on glass dish feldspar

Feldspar standard grades

LKAB Minerals Feldspar is available in the following as standard:

  • PREM600
  • KS63

Other grades may be available on request. Contact us to find out more.

Feldspar packaging

Feldspar available in 25 kg paper sacks, 1,000 kg bulk bags or as bulk as standard.

The typical properties of Feldspar are:

Chemical properties of Feldspar

Al2O3 [%]
SiO2 [%]
Na2O [%]

Feldspar mineral origin

LKAB Minerals Feldspar is mined in Turkey.

Feldspar toxicology

Our Feldpar is a non-toxic, non-hazardous stable mineral. You can download the Material Safety Data Sheet in the section on the right hand side for further information.

Safety Data Sheet

Downloads on request