BIALA, BIALE, BIALY, BIEL, CHARLES, CIENKA, CIENKI, CIENKIE, DELIKATNY, DERBY, DIOXIDE, DOSKONALY, DROBNA, DROBNE, DROBNOZIARNISTA, DROBNOZIARNISTE, DROBNOZIARNISTY, DROBNY, FINE, GEM, GEMSTONE, GEOLOGIA, GEOLOGY, GLAZ, GLAZY, GRZYWNA, HYDROUS, KAMIEN, KAMIENIE, KARA, KEJNOT, KLEJNOT, MANDAT, MINERAL, MINERALNA, MINERALNE, MINERALNY, MINERALOGY, OPAL, OPALE, OPALESCENCE, OPALESCENT, OPALS, POLISHED, ROCK, SEMI-PRECIOUS, SILICA, SILICATE, SILICON, SILIKON, SKALA, STONES, SWIETNY, TECTOSILICATE, WHITE,