| Heavy Minerals | Ideal Composition | Specific Gravity | Hardness | Colour | Stability in weathering | Provenance |
| Magnetite | Fe3O4 | 5.2 | 5.5 - 6.5 | black, dark grey | moderate | igneous & metamorphic rocks, hydrothermal veins |
| Monazite | (Ce, La, Y, Th)PO4 | 4.9 - 5.5 | 5 - 5.5 | brownish red | high | igneous & metamorphic rocks |
| Iimenite | FeTiO3 | 4.5 - 5 | 5 - 6 | black | moderate-high | igneous & metamorphic rocks |
| Zircon | (Zr, Hf, U)SiO4 | 4.2 - 4.9 | 7.5 - 8 | many | high | igneous & metamorphic rocks |
| Xenotime | YPO4 | 4.4 - 5.1 | 4 - 5 | brown, yellow | high | igneous & metamorphic rocks |
| Rutile | TiO2 | 4.2 - 4.3 | 6 - 6.5 | brownish red | high | igneous & metamorphic rocks |
| Corundum | Al2O3 | 4 | 9 | colourless, blue, red | low-moderate | igneous & metamorphic rocks |
| Leucoxene | FeTiO3 to mostly TiO2 | 3.5 - 4.5 | 4 - 4.5 | white to yellow brown | high | igneous & metamorphic rocks |
| Staurolite | Fe2Al9O6(SiO4)4(O, OH)2 | 3.7 - 3.8 | 7 - 7.5 | brown | high | metamorphic rocks |
| Garnet | (Mg, Fe, Mn, Ca)Al2Si3O12 | 3.1 - 4.3 | 7 - 7.5 | colorless, all colors | moderate | mostly metamorphic but igneous also. |
| Kyanite | Al2SiO5 | 3.5 - 3.7 | 4 - 8 | blue, white, grey, green, black | high | metamorphic rocks, rarely in igneous rocks |
| Sillimanite | Al2SiO5 | 3.2 | 6.5 - 7.5 | colorless, various colored | high | metamorphic rocks, sometimes granite. |
| Tourmaline | (Na, Ca)(Li, Mg, Al)(Al, Fe, Mn)6(BO3)3(Si6O18)(OH)4 | 3.0 - 3.3 | 7 | black, various colored | high | Granitic pegmatites, some metamorphic rocks |