Specific Gravity Of Minerals
The specific gravity of a substance is the ratio of its weight to the weight of an equal volume of water.
- Water weight = 8.34 pounds per imperial gallon.
- 2.7 – rock
- 2.7 – quartz
- 4.2 – copper
- 4.3 – garnet
- 5.1 – pyrite — 5.1 – magnetite
- 5.3 – hematite
- 7.3 – tin
- 7.5 – galena
- 7.9 – iron
- 10.5 – silver
- 11.3 – lead
- 13.6 – mercury
- 19.2 – gold
- 21.5 – platinum
Posted in: Mining Talk