Lexicon

Nonsilicate Minerals

Minerals without the presence of silicon (Si) or oxygen as a tetrahedral structure. They include calcite, gypsum, flourite, hailte and pyrite. Common non-silicate mineral groups include Oxides, Sulfides, Halides and Phosphates.

Goblin Valley State Park - Entrada Sandston

Entrada Sandstone in Goblin Valley State Park contains gypsum, a non-silicate mineral.