Garnet – Blasting Grade and Waterjet Cutting Grade

Download: Technical Data Sheet | Safety Data Sheet (SDS)

Average Chemical Composition (Typical)

SiO2 ~    36%     Al2O3    20%
FeO    30%     Fe2O3    2%
TiO2    1%     MnO    1%
CaO    2%     MgO    6%

~ Refers to SiO2 bound within the lattice of the homogeneous garnet crystal (no free silica)



Physical Characteristics (Typical)

Bulk Density2.3T/m³ Specific Gravity4.1
Hardness (moh)7.50-8.0 Melting Point 1250ºC
Shape of natural grainssub-angular

Other Characteristics (Typical)

Conductivity10-15ms/m (max 25ms/m)
RadioactivityNot detectable above background
Moisture AbsorptionNon-hydroscopic, Inert
Total Chlorides10-15ppm (max 25ppm)
Ferrite (free iron)less than 0.01%~
Leadless than 0.002%~
Copperless than 0.005%~
Other Heavy Metals less than 0.01%~
Sulphurless than 0.01%~

~ Generally below detectable levels.

Mineral Composition (Typical)

Garnet (Almandite) 97-98%
Ilmenite 1-2%
Zircon 0.20%
Quartz (free<0.5%
Others 0.25%


Blast Grade – Product Range

Typical ResultsNew SteelSpeed BlastPremium Blast
Profile (microns)45 – 5550 – 7050 – 85
Consumption (kg/m²)7 – 108 – 1010 – 12
Cleaning Rate (m²/hour)20 – 2515 – 2515 – 20


Water Jet Cutting Grade – Product Range:

(Typical weight % Retained)

US 50 mesh 60 mesh 80 mesh120 mesh
Mesh Microns(600-200) (400-200) (300-150)(200-100)
30 600x x xx
35 5002 x xx
40 42514 0.2 xx
45 35545 10 2x
50 30085 45 20x
60 25096 78 500.01
70 21295 96 8525
80 18099.9 99 9570
90 150x 99.8 9993
115 125x x x99
150 106x x x99.9
170 90x x xx
Pan -90x x xx


Standard Packing

- 80 × 25kg multilayer paper bags shrink-wrapped to 2 MT pallets, or

- 80 × 25kg multilayer paper bags packed into 2 T bulk bags or

- 2,000kg top and bottom spouted bulk bags with internal PVC liner, or

- Loose bulk.

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