Environmental Studies Short Question | Gkseries

Which one of the following is not a set of polymorphous minerals ?

[A] Calcite, aragonite, vaterite

[B] Quartz, coesite, tridymite

[C] Graphite, anthracite, diamond

[D] Kyanite, alusite and sillimanite

Answer & Explanation
Answer: Graphite, anthracite, diamond