Definition that contains orphic
- marble a hard crystalline metamorphic rock that takes a high polish; used for sculpture and as building material
- slate a fine-grained metamorphic rock that can be split into thin layers
- schist any metamorphic rock that can be split into thin layers
- quartzite hard metamorphic rock consisting essentially of interlocking quartz crystals
- pseudoephedrine poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it
- aragonite a mineral form of crystalline calcium carbonate; dimorphic with calcite
- chrysolite a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
- biotite dark brown to black mica found in igneous and metamorphic rock
- pyroxene any of a group of crystalline silicate mineral common in igneous and metamorphic rocks
- foliaceous (especially of metamorphic rock) having thin leaflike layers or strata