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