Mohs Scale 6 Orthoclase Feldspar

Fluorapatite, Albite, and Schorl, 8.5 cm wide

Chumar Bakhoor, Nagar, Hunza Valley, Gilgit-Baltistan, Pakistan

James Madison University

Image Credit and Copyright: Jeff Scovil

Orthoclase Feldspar

Mohs: 6, Absolute: 72

Orthoclase is a type of feldspar and is commonly found in granite as well as in its crystal form. It is used in scouring powder.

5: Apatite

7: Quartz