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.
Feldspar product uses
Feldspar is a valuable ingredient in glass sand batch making up around 10 to 15% of the batch. The main reasons that sodium feldspar is used in this application is due to the alumina content and the minerals ability to act as a flux.
The alumina content of sodium feldspar is over 19%; this provides the glass with impact and thermal shock resistance. Feldspar as a fluxing agent enables the glass manufacturer to reduce the melting temperature of the quartz in the sand batch enabling control of the glass' viscosity.
Paints & Coatings
Furthermore feldspar can be used in paints, plastics, ceramic flooring, fritz and glazes.
The typical chemical composition of Feldspar is shown below:
For further information or to request a datasheet, please speak to your local sales representative using the contact form above.
Feldspar standard grades
LKAB Minerals Feldspar is available in the following as standard:
Other grades may be available on request.Contact us to find out more.
Feldspar available in 25kg paper sacks, 1000kg bulk bags or as bulk as standard.
LKAB Minerals Feldspar is mined in Turkey.
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.
Please contact us for datasheets on a single grade or further information on our Feldspar product range. You can find our sales contact by choosing your country in the upper right expert box of this page.