Feldspar Distinctions Characteristics & Identification
10 08 2021 · Feldspars are hard minerals all of them with a hardness of 6 on the Mohs scale This lies between the hardness of a steel knife and the hardness of quartz 7 In fact feldspar is the standard for hardness 6 in the Mohs scale Feldspars usually are white or nearly white though they may be clear or light shades of orange or buff