Which type of gem is derived from a living organism?

An organic gem is derived from a living organism, making it a unique category in the world of gemstones. These gems are formed from the remains or byproducts of biological processes, which distinguishes them from inorganic gems that are formed through geological processes without any biological influence.

Examples of organic gems include pearls, which are created by mollusks, and amber, which is fossilized tree resin. The organic nature of these materials gives them distinct properties and appearances that can vary significantly from inorganic gems like diamonds or sapphires.

In contrast, inorganic gems, as the name suggests, do not originate from living organisms; instead, they are typically formed from minerals and have a crystalline structure. Synthetic gems are man-made, created in controlled environments to replicate the properties of natural stones but are not derived from living organisms. Processed stones may refer to any gem that has undergone treatment or modification for enhancement, but they do not specifically denote a biological origin.

Therefore, the classification of organic gems highlights their unique origin from living organisms, setting them apart in the realm of gemstones.