Description
Zircon Sands SpecificationsÂ
Calcined ZirconÂ
SandÂ
Uncalcined ZirconÂ
SandÂ
ZrO2 (%) minimum *5.0 *5.0Â
SiO2 (%) maximum *3.0 *3.0Â
Al2O3 (%) maximum 2.0 2.0Â
TiO2 (%) maximum 0.*5 0.*7Â
Fe2O3 (%) maximum 0.*5 0.**5Â
Melting Point (°C) 2,**5 2,**5Â
Specific Gravity 4.5 4.5Â
Refractive Index 2 2Â
Hardness (Mohs) 7.5 7.5Â
Thermal Exp. Coef. (cm/ cm / °C) 4.2 x ***6 4.2 x ***6
Residue on *0 Mesh (%) maximum ****- ****-Â
Residue on *0 Mesh (%) maximum 1 <1Â </div>
Residue on **0 Mesh (%) maximum *4 0 Â -
 2Â
Residue on **0 Mesh (%) maximum ****- ****-Â
Residue on **0 Mesh (%) maximum *3 *9 Â - *4Â
Residue on **0 Mesh (%) maximum *1 *6 Â -
 *6Â
Residue on **0 Mesh (%) maximum ****- ****-Â
Residue on **0 Mesh (%) maximum 1 3 Â - Â 7