Zircon Sand

General Specification
Valley Minerals LLC Chemical Analysis

Mineral Composition (Typical %)
  Zircon M
Zircon (ZrSiO4) 93.0%
Kyanite (Al2SiO5) 1.3%
Rutile (TiO2) 0.5%
Miscellaneous Minerals < 1.0%

Chemical Composition
  Zircon M
  Spec. % Type %***
ZrO2* 60.5 min. 62.5%
TiO2   2.6%
Al2O3   0.8%
FeO3   0.5%
Free Silica **   0.1%

Typical Screen Analysis

Mesh No. Sieve Opening (µm) Mean Std. Dev
50 300 < 1  
70 212 < 1  
100 150 12 3.6
140 106 7 4.3
200 75 29 5.0
270 53 2 1.6
PAN < 53 < 1  
AFS Grain Fineness#   112 4.0
D50 (Mean)     125 Mesh
(120) µm
Sieves conform to American Standard ASTME-11-81

Typical Physical Properties

Loss On Ignition 0.02 % ~ 0.12%
Specific Gravity 1.62 ~ 4.67
Hardness (Mohs) 7.0 ~ 7.5
Bulk Density (Uncompacted) 2643-2804 kg/m3 (165-175)
Melting Point 2100-2300°C (3810°F ~ 4170°F)
Coefficient of Linear Expansion 7.2 x 10-6 cm/cm -°C (4.0 x 10-6 in/in-°F)

Zircon is a natural product and as such slight variations in the chemical analysis and size distribution should be expected. Special contracts covering guarantees other than those specified may be negotiated.

** Values calculated based on concentrations of other elements.
*** Typical values based on historical production performance. Valley Minerals does not make any express or implied warranty that
future production will conform to these typical values.