Dolomite vs Feldspar (Orthoclase)

Property Dolomite Feldspar (Orthoclase)
Formula CaMg(CO3)2 KAlSi3O8
Crystal System Trigonal Monoclinic
Mineral Class 05 Carbonates and Nitrates 09 Silicates
Mohs Hardness 3.5-4.0 6.0-6.5
Color Colorless, white, pink, gray, brown White, pink, cream, gray
Luster Vitreous Vitreous
Streak White White
Transparency Transparent Translucent
Cleavage Perfect rhombohedral {1011} Perfect {001}, good {010}
Fracture Subconchoidal Uneven to conchoidal

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