Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/opticalprop> ?o. }
- Switzerite opticalprop "Biaxial".
- Sylvanite opticalprop "Anisotropic".
- Sylvite opticalprop "Isotropic".
- Syngenite opticalprop "Biaxial".
- Sérandite opticalprop "Biaxial".
- Taaffeite opticalprop "Uniaxial".
- Talc opticalprop "Biaxial".
- Tangeite opticalprop "Biaxial".
- Tantite opticalprop "Biaxial".
- Tanzanite opticalprop "biaxial positive".
- Taranakite opticalprop "Uniaxial".
- Tarbuttite opticalprop "Biaxial".
- Tausonite opticalprop "Isotropic".
- Teallite opticalprop "Anisotropic".
- Tellurite opticalprop "Biaxial".
- Tennantite opticalprop "Isotropic".
- Tenorite opticalprop "Biaxial +".
- Tephroite opticalprop "Biaxial".
- Terlinguaite opticalprop "Biaxial".
- Tetrahedrite opticalprop "Isotropic".
- Thaumasite opticalprop "Uniaxial".
- Thenardite opticalprop "Biaxial , 2V=83°".
- Thermonatrite opticalprop "Biaxial".
- Thomasclarkite-(Y) opticalprop "pseudouniaxial negative 2V ≤ 5°".
- Thorianite opticalprop "Isotropic".
- Thorite opticalprop "Uniaxial".
- Thulite opticalprop "biaxial positive".
- Tinaksite opticalprop "Biaxial".
- Titanite opticalprop "Biaxial".
- Tobermorite opticalprop "Biaxial".
- Todorokite opticalprop "Biaxial".
- Tokyoite opticalprop "Biaxial".
- Topaz opticalprop "Biaxial".
- Torbernite opticalprop "Uniaxial".
- Tourmaline opticalprop "Double refractive, uniaxial negative".
- Tranquillityite opticalprop "Biaxial".
- Tremolite opticalprop "Biaxial".
- Tridymite opticalprop "Biaxial , 2V=40–86°".
- Triplite opticalprop "Biaxial".
- Triploidite opticalprop "Biaxial".
- Tripuhyite opticalprop "Uniaxial".
- Trona opticalprop "Biaxial".
- Tsavorite opticalprop "Single refractive".
- Tschermakite opticalprop "Biaxial".
- Tschermigite opticalprop "Isotropic".
- Tsumcorite opticalprop "Biaxial".
- Tsumebite opticalprop "Biaxial".
- Tungstite opticalprop "Biaxial".
- Tuperssuatsiaite opticalprop "Biaxial".
- Turquoise opticalprop "Biaxial".
- Tusionite opticalprop "Uniaxial".
- Tyuyamunite opticalprop "Biaxial".
- Ulexite opticalprop "Biaxial".
- Uraninite opticalprop "Isotropic".
- Uranophane opticalprop "Biaxial".
- Uricite opticalprop "Biaxial".
- Urusovite opticalprop "Biaxial".
- Utahite opticalprop "Biaxial".
- Uvarovite opticalprop "Isotropic".
- Valentinite opticalprop "Biaxial".
- Vanadinite opticalprop "Uniaxial".
- Vanadiocarpholite opticalprop "Biaxial".
- Variscite opticalprop "Biaxial".
- Vaterite opticalprop "Uniaxial".
- Vauquelinite opticalprop "Biaxial".
- Vauxite opticalprop "Biaxial".
- Veatchite opticalprop "Biaxial".
- Vesuvianite opticalprop "Uniaxial".
- Villiaumite opticalprop "Isotropic; weak anomalous anisotropism, then uniaxial".
- Vishnevite opticalprop "Uniaxial".
- Vivianite opticalprop "Biaxial".
- Vladimirite opticalprop "Biaxial".
- Vlasovite opticalprop "Biaxial".
- Volborthite opticalprop "Biaxial".
- Wadsleyite opticalprop "Biaxial".
- Wakefieldite opticalprop "Uniaxial".
- Walfordite opticalprop Isotropy.
- Wardite opticalprop "Uniaxial".
- Warikahnite opticalprop "Biaxial".
- Wavellite opticalprop "Biaxial".
- Weddellite opticalprop "Uniaxial".
- Weeksite opticalprop "Biaxial".
- Weilite opticalprop "Biaxial".
- Weloganite opticalprop "Biaxial".
- Whiteite opticalprop "Biaxial".
- Whitlockite opticalprop "uniaxial".
- Willemite opticalprop "Uniaxial".
- Wiluite opticalprop "Uniaxial".
- Witherite opticalprop "Biaxial".
- Wollastonite opticalprop "Biaxial".
- Woodhouseite opticalprop "Uniaxial , 2V = 0° to 20°".
- Wulfenite opticalprop "Uniaxial , may be anomalously biaxial".
- Wurtzite opticalprop "Uniaxial".
- Xanthoxenite opticalprop "Biaxial".
- Xocomecatlite opticalprop "Biaxial".
- Yogo_sapphire opticalprop "Uniaxial Abbe number 72.2".
- Yttrium_aluminium_garnet opticalprop "Single refractive".
- Yuksporite opticalprop "Biaxial".
- Zabuyelite opticalprop "Biaxial".
- Zairite opticalprop "Uniaxial".