| You need to either accept mineral names or state clearly that you are going for common/archaic names. "Hematite" should be accepted as a spelling. The formula for calamine should be ZnCO3, and this clue should also accept smithsonite as an answer. Chalcopyrite should work for copper pyrite, and chalcocite should work for copper glance. Sphalerite should be acceptable for zinc blende (wurtzite has the same formula but isn't common enough to be ore). Finally, the room temperature polymorph of Ag2S is not argentite but acanthite; both answers should be accepted. |
Digits of Pi
Multiplication Table
Minute Math (Addition)
