What Is Mica Specific Gravity?

Definition of Specific Gravity

• In terms of rocks and minerals, specific gravity refers to the comparison of a mineral's weight to an equal volume of water, as stated by enchantedlearning.com. The specific gravity rating measures mineral or rock density. If a specific gravity rating is low the mineral is less dense than a mineral with a higher rating.

Biotite

• Biotite has a specific gravity of 3.0, which is a bit heavier than the same volume of water.

Muscovite

• Muscovite has a specific gravity of 2.8, which is comparable in weight to the same volume of water.

Lepidolite

• Lepidolite has a specific gravity of 2.8 as well.

Fuchsite

• Fuchsite has a specific gravity of 2.8 to 3.0, depending on mineral sample.