potassium feldspar
Mineralogy
noun
A feldspar rich in potassium; specifically each of the three minerals orthoclase, microcline, and sanidine, which have the formula KAlSi3O8; these minerals collectively.
Origin
Late 19th century; earliest use found in Science.
- chamber of horrors
- Chamber of Trade
- chamber opera
- chamber orchestra
- chamber organ
- chamber pitch
- chamber pop
- chamber pot
- chamber practice
- chamber process
- chamber-ridden
- chamber set
- Chambers, Sir William
- chamber storey
- Chambers, Whittaker
- Chambertin
- chamber tomb
- chamber utensil
- chamber vessel
- chamber work
- chambranle
- chambray
- chambress
- chambré
- Chambéry