sphene Definition

leucoxene, titanite, transparent gem, demantoid, chrysoberyl, water sapphire, grossularite, spinel, chrysoprase, rubellite, prehnite, meionite, opaque gem, kunzite, citrine, diopside, garnet, tourmaline, amazonite, blue john, andalusite, omphacite, rubicelle, cacholong, kyanite, scapolite, gemstone, apatite, novaculite, spessartite, corundum, saussurite, spinel ruby, sagenite, sodalite, mussite, chalcedony, andradite, ekebergite, corundom, rhodolite, smoky quartz, rose quartz, peridot, zoisite, idocrase, alexandrite, chloropal, quartz, amethyst, rhodonite, tanzanite, essonite, rhodochrosite, smaragdine, vesuvianite, epidote, zircon, diaspore, staurolite, labradorite, ureilite, calcite, angrite, emerald, dioptase, sapphire, chrysocolla, rutile, lanarkite, morganite, white sapphire, cabochon, andesine, iolite, eschynite, cyclosilicate, opal, olivine, cairngormstone, pyrite, bucholzite, amphibole group, calcedon, orthite, jargoon, ditroite, agatiferous, danburite, grossular, baddeleyite, gem, martite, malachite, miascite, sphalerite, chrysolite, succinite, knebelite, fluorite,