Question

What are the five qualifications a material must meet to be classified as a mineral?.

Answer 1

5.1 Crystal structure and habit.

5.2 Hardness.

5.3 Lustre and diaphaneity.

5.4 Colour and streak.

5.5 Cleavage, parting, fracture, and tenacity.

5.6 Specific gravity.

5.7 Other properties.