resemblance to pyrochlore group minerals Yttrium + o + pyrochlore <span class="searchmatch">yttropyrochlore</span> (mineralogy) A discredited pyrochlore mineral containing niobium, hydrogen...
yttrium. yttrobetafite yttrocerite yttrocolumbite yttrocrasite yttrofluorite yttrogummite <span class="searchmatch">yttropyrochlore</span> yttrotantalite yttrotitanite yttrotungstite Rotty...