| Answer | Crossword Clue |
|---|---|
| fayalite | the iron end member of the olivine group, Fe2SiO4 |
| fayalites | the iron end member of the olivine group, Fe2SiO4 |
| albites | the sodium end member of the plagioclase feldspar group, light-colored and found in alkalic igneous rocks |
| albite | the sodium end member of the plagioclase feldspar group, light-colored and found in alkalic igneous rocks |
| albitic | the sodium end member of the plagioclase feldspar group, light-colored and found in alkalic igneous rocks |
