| Answer | Crossword Clue |
|---|---|
| microclines | MICROCLINE, a mineral of the feldspar group |
| microcline | a mineral of the feldspar group |
| labradorite | A mineral of the plagioclase feldspar group, found in many igneous rocks |
| microcline | a triclinic mineral of the feldspar group that is like orthoclase in composition |
| andesine | mineral, intermediate in the plagioclase feldspar group, having a play of colors and usually found as crystals in igneous rocks |
| felspathoid | any mineral of a group related to feldspar also FELDSPATHOID, FOID |
| felspathoids | FELSPATHOID, any mineral of a group related to feldspar also FELDSPATHOID, FOID |
