Minerals

🧊Sulfate Minerals

Sulfates

~370 species

Minerals containing the sulfate ion (SO4). Often form by evaporation of water. Includes gypsum (used in plaster and drywall) and barite.

💡The largest crystals ever found are selenite (gypsum) crystals in Mexico's Cave of the Crystals — some are over 36 feet long.

6 minerals

Can you guess minerals from their family tree?

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