Formula :
(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
System: orthorhombic Hardness:5½-6 Rarity:not common
Strunz id:IV/D.19-40 -
OXIDES and HYDROXIDES
Name origin: From the Greek εΰζευος, friendly to strangers, hospitale, in allusion to the many rare elements that it contains.
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