spinel ruby Definition

ruby spinel, rubicelle, spinel, transparent gem, pleonaste, water sapphire, white sapphire, garnet, corundom, grossularite, opaque gem, balas ruby, cacholong, gemstone, corundum, essonite, amethyst, citrine, blue john, sapphire, ruby, almandine, peridot, tourmaline, omphacite, rhodolite, chloropal, rubellite, chalcedony, kunzite, tanzanite, cabochon, calcedon, smoky quartz, saussurite, sagenitic, zaffre, aquamarine, pendeloque, baddeleyite, sagenite, chrysoprase, alexandrite, diopside, knebelite, zircon, argyrodite, demantoid, gahnite, rose quartz, zoisite, prehnite, feitsui, hauerite, topaz, emerald, diamond, azurite, boulangerite, opal, ureilite, amazonite, pyrope, smaragdine, babingtonite, zirconia, malachite, lanarkite, smaltite, zirconoid, succinite, cyclosilicate, morganite, jargoon, iolite, chrysoberyl, semiopal, meionite, fire opal, aluminium oxide, quartz, gem, luxullianite, rhodochrosite, lapis, mussite, jamesonite, euclase, polianite, skutterudite, gemmeous, carnelian, martite, horn silver, harmotome, sodalite, freieslebenite, chrysocolla, praseolite, oxalite,