Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/opticalprop> ?o. }
- Zanazziite opticalprop "Biaxial".
- Zektzerite opticalprop "Biaxial".
- Zemannite opticalprop "Uniaxial".
- Zeunerite opticalprop "Uniaxial".
- Ziesite opticalprop "Biaxial".
- Zincite opticalprop "Uniaxial".
- Zinclipscombite opticalprop "Uniaxial".
- Zincochromite opticalprop "Isotropic".
- Zincolivenite opticalprop "Biaxial".
- Zinnwaldite opticalprop "Biaxial".
- Zircon opticalprop "Uniaxial".
- Zoisite opticalprop "biaxial positive".
- Zorite opticalprop "Anisotropic, biaxial".
- Zunyite opticalprop "Isotropic".
- Zussmanite opticalprop "Uniaxial".
- Daubréeite opticalprop "Uniaxial".