Name: Potassium aluminium silicate Microcline (KAlSi3O8) is an important igneous rock-forming tectosilicate mineral. It is a potassium-rich alkali feldspar. Microcline typically contains minor amounts of sodium. It is common in granite and pegmatites. Microcline forms during slow cooling of orthoclase; it is more stable at lower temperatures than orthoclase. Sanidine is a polymorph of alkali feldspar stable at yet higher temperature. Microcline may be clear, white, pale-yellow, brick-red, or green; it is generally characterized by cross-hatch twinning that forms as a result of the transformation of monoclinic orthoclase into triclinic microcline. E555,Potassium aluminium silicate,Potassium aluminium silicate anti-caking agent,Potassium aluminium silicate supplier,Potassium aluminium silicate manufacturer,Potassium aluminium silicate exporter,Potassium aluminium silicate importer,Potassium aluminium silicate distributor