Uploaded November 2014 | Updated September 2026, 3 weeks ago
Many gems are crystals which are classified by their crystal system such as cubic or trigonometrical or mono clinic. Another term used is habit, the form the gem is usually found in.
Many gems are crystals which are classified by their crystal system such as cubic or trigonometrical or mono clinic. Another term used is habit, the form the gem is usually found in.










