Here's why:
* Density: Specific gravity is a measure of a substance's density compared to water. Density is mass per unit volume.
* Atoms: Minerals are composed of tightly packed atoms, which are heavier than water molecules. This high density leads to a higher specific gravity.
Exceptions:
While most minerals have a higher specific gravity, there are a few exceptions:
* Some salts: Like halite (rock salt) or sylvite (potassium chloride) have a specific gravity close to or slightly less than water.
* Porous materials: Some minerals with high porosity, like pumice, have lower specific gravities because they contain air pockets.
In general:
* A specific gravity greater than 1 indicates a mineral is denser than water and will sink.
* A specific gravity less than 1 indicates a mineral is less dense than water and will float.
Let me know if you'd like to explore specific mineral examples!
