Potassium feldspar

Potassium feldspar refers to a number of minerals in the feldspar group that contain large amounts of potassium in the crystal lattice.

• Orthoclase (endmember formula KAlSi₃O₈), an important tectosilicate mineral that forms igneous rock
• Microcline, chemically the same as orthoclase, but with a different crystalline structure
• Sanidine, the high-temperature form of potassium feldspar (K,Na)(Si,Al)₄O₈
• Adularia, a more ordered low-temperature variety of orthoclase or partially disordered microcline
• Amazonite (sometimes called "Amazon stone"), a green variety of microcline

Index of articles associated with the same name

This set index article includes a list of related items that share the same name (or similar names).
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.