| Answer | Crossword Clue |
|---|---|
| pyrites | common yellow mineral containing sulfur and iron |
| pyritous | common yellow mineral containing sulfur and iron |
| pyrite | common yellow mineral containing sulfur and iron |
| pyrites | very common brass-yellow mineral, iron disulfide, FeS2, with a metallic luster, burned to sulfur dioxide in the manufacture of sulfuric acid: chemically similar to marcasite, but crystallizing in the isometric system |
| andradite | A mineral of the garnet group, containing calcium and iron. It occurs as yellow, green, brown, or black crystals, sometimes of gem quality |
| goethite | very common mineral, iron hydroxide, HFeO2, occurring in crystals, but more commonly in yellow or brown earthy masses: an ore of iron |
