Minerals

💎Oxide Minerals

Oxides

~450 species

Minerals formed by the combination of metals with oxygen. Includes some of the most important gemstones and ore minerals.

💡Magnetite is naturally magnetic — ancient sailors used lodestones (natural magnetite) as the first compasses.

15 minerals

Can you guess minerals from their family tree?

GuessKin Minerals is a daily taxonomy puzzle — Wordle meets the tree of life.