| Answer | Crossword Clue |
|---|---|
| alabandites | ALABANDITE, a cubic mineral, magnesium sulphide |
| alabandite | a cubic mineral, magnesium sulphide |
| boracites | strongly pyroelectric mineral, a borate and chloride of magnesium, Mg6Cl2B14O26, occurring in white or colorless cubic crystals or fine-grained masses |
| boracite | strongly pyroelectric mineral, a borate and chloride of magnesium, Mg6Cl2B14O26, occurring in white or colorless cubic crystals or fine-grained masses |
| chromite | cubic mineral, ferrous chromate, Fe3Cr2O3, usually with much of the ferrous iron and aluminum replaced by magnesium, and some of the chromium by ferric iron: the principal ore of chromium |
