mineral

Tumbled pink feldspar (likely orthoclase or microcline)

Potassium feldspar — KAlSi₃O₈

AI-generated identification · may be incorrect

Typically salmon-pink to peach, vitreous to pearly luster, Mohs hardness 6–6.5, and two cleavage directions near 90°. The pictured piece is polished/tumbled and shows translucent, blocky feldspar-like coloration.

Identified August 28, 2026More mineral →

Explore Tumbled pink feldspar (likely orthoclase or microcline) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms primarily in slowly cooled felsic igneous rocks such as granite and pegmatite; feldspar is abundant from Precambrian through modern geological ages. Its pink color commonly reflects trace iron or structural defects.

Uses & applications

Used extensively in ceramics, glass, tiles, and as a component of construction stone; attractive pieces are sold as decorative or lapidary specimens. Common tumbled material has modest collector value.

Geological facts

Feldspar is the most abundant mineral group in Earth’s crust. Similar pink stones may be rose quartz, but feldspar generally has stronger cleavage and a less uniformly glassy appearance.

Field identification & locations

Commonly found in granite and pegmatites worldwide, especially in Brazil, Madagascar, India, and the United States. Test cautiously for cleavage and hardness; definitive identification may require microscopy or spectroscopy.