Sapphire is definitively an inorganic gemstone.
Gemstones found in nature are broadly classified into two primary types based on their origin: organic and inorganic. This classification distinguishes between those formed by living organisms and those formed through geological processes.
Understanding Gemstone Types
Based on their formation and composition, gemstones fall into one of these two categories:
- Organic Gemstones: These are materials produced by living organisms. Examples include materials like pearls formed within mollusks, amber from fossilized tree resin, ivory from animal tusks, and coral from marine polyps.
- Inorganic Gemstones: As highlighted by gemstone classification, these are minerals formed within the earth under natural conditions. They are crystalline solids with a defined chemical composition and atomic structure.
According to gemstone classification information, "Inorganic Gemstones are minerals formed within earth under natural conditions such as Diamonds, Sapphire, Rubies and Emeralds."
Sapphire belongs to the mineral corundum and is composed of aluminum oxide. Its formation deep within the Earth through geological processes, rather than from a living organism, places it firmly in the inorganic category.
Examples of Gemstone Types
Here are some examples illustrating the difference:
Organic Gemstones:
- Pearl
- Amber
- Ivory
- Coral
Inorganic Gemstones:
- Diamond
- Sapphire
- Ruby
- Emerald
Therefore, sapphire's classification as an inorganic gemstone is based on its mineral composition and geological origin.
