Density of Feldspar: Specific Gravity and Mohs Hardness
The density of feldspar is about 2.62 g/cm3, equal to a specific gravity of 2.62, with a Mohs hardness near 6. One cubic meter of solid feldspar weighs roughly 2.62 tonnes.
| Property | Value |
|---|---|
| Density | 2.62 g/cm3 |
| Specific gravity | 2.62 |
| Mohs hardness | 6 |
| Mass of 1 m3 | about 2.62 tonnes |
Why it matters
The most abundant mineral family in the crust, weathering to the clays that make engineering interesting. Mineral densities are the building blocks of rock density: weight them by volume fraction and the bulk rock number follows, which is exactly what the calculator below does.
Use these values
- Rock Density Calculator to combine mineral densities into rock density.
- Mohs Hardness Identification Tool to identify minerals by scratch test.
- The Property Library for every mineral, rock, and soil on this site.
Related Calculators and Reference
- Rock Density and Specific Gravity Calculator, to convert between specific gravity and density without doing the arithmetic twice.
- Rock Density Calculator from Mineral Composition, once you know the mineral proportions and need a rock density out of them.
- Density of Calcite, for the next comparison most people reach for.
- Density of Muscovite, for the neighbouring entry when you are working through an assemblage.
- USGS Mineral Resources Program, published mineral property data and commodity reports.