|| Englehart,Ontario || 2.679 || 6.1 || 6.28 || 6.37 || 6.57 |- | Greywacke || New Zealand || 2.679 || 5.4 || 5.63 || 5.87 || 6.13 |- | “Granite” || Larchford,Ontario || 2.683 || 5.7 || 6.13 || 6.25 || 6.41 |- | Albite || Sylmar, PA || 2.687 || 6.40 || — || 6.65 || 6.76 |- | Granodiorite || Butte, MT || 2.705 || 4.4 || — || 6.35 || 6.56 |- | Graywacke || Quebec || 2.705 || 5.4 || — || 6.04 || 6.28 |- | Serpentinite || CA || 2.710 || 5.8 || — || 6.08 || 6.31 |- | Slate || Medford, MA || 2.734 || 5.49 || — || 5.91 || 6.22 |- | “Charnockite” || Pallavaram,India || 2.740 || 6.15 || — || 6.30 || 6.46 |- | Granodioritegneiss || NH || 2.758 || 4.4 || — || 6.07 || 6.30 |- | Tonalite || Val Verde, CA || 2.763 || 5.1 || — || 6.43 || 6.60 |- | Anorthosite || Tahawus, NY || 2.768 || 6.73 || — || 6.90 || 7.02 |- | Anorthosite || StillwaterComplex, MT || 2.770 || 6.5 || — || 7.01 || 7.10 |- | Augite syenite || Ontario || 2.780 || 5.7 || — || 6.63 || 6.79 |- | Mica schist || Woodsville, VT || 2.797 || 5.7 || — || 6.48 || 6.64 |- | Serpentinite || Ludlow, VT || 2.798 || 6.4 || — || 6.57 || 6.84 |- | Quartz diorite || San Luis Reyquad., CA || 2.798 || 5.1 || — || 6.52 || 6.71 |- | Anorthosite || BushveldComplex || 2.807 || 5.7 || 6.92 || 7.05 || 7.21 |- | Chlorite schist || ChesterQuarry, VT || 2.841 || 4.8 || — || 6.82 || 7.07 |- | Quartz diorite || Dedham, MA || 2.906 || 5.5 || — || 6.53 || 6.71 |- | Talc schist || Chester, VT || 2.914 || 4.9 || — || 6.50 || 6.97 |- | Gabbro || Mellen, WI || 2.931 || 6.8 || 7.04 || 7.09 || 7.21 |- | Diabase || Centerville,VA || 2.976 || 6.14 || — || 6.76 || 6.93 |- | Diabase || Holyoke, MA || 2.977 || 6.25 || 6.40 || 6.47 || 6.63 |- | Norite || Pertoria,Transvaal || 2.978 || 6.6 || 7.02 || 7.11 || 7.28 |- | Dunite ||