Zirconium_silicateWordNet Explorer

a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent

solid homogeneous inorganic substances occurring in nature having a definite chemical composition

a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon

a red transparent variety of zircon used as a gemstone

a colorless (or pale yellow or smoky) variety of zircon