To help with identification, geologists must look closely at the physical properties of a mineral. ... These properties can include: color, streak, hardness, cleavage, specific gravity, crystal form, and others.

What are the six ways geologists identify minerals?

Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.

What are 3 ways to identify a mineral?