A mineral of feldspar group, chiefly KAlSi3O8, used in making glass, porcelain, and enamel.
a standard feldspar of igneous, plutonic, and metamorphic rocks, manufactured from potassium aluminum silicate, using chemical formula KAlSi3O8. Microcline is the primary feldspar of granite. The bluish-green variety is named amazonstone, and it is occasionally of gem quality. Used in ceramics, porcelain glazes, so when a scouring dust.
A mineral of this feldspar group, like orthoclase or typical feldspar in structure, but triclinic in kind.
A feldspar identical in structure with orthoclase, but belonging to the triclinic system.