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TYPICAL PHYSICAL PROPERTIES OF OLIVINE SAND
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Colour
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Olive Green or Palely Green
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Grain Shape
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Angular/ Subangular
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Melting Point (oC)
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~1,800
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Specific Gravity (g/cm3)
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3.2- 3.4
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Bulk Density, Loose (g/cm3)
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1.45- 1.75
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Fusion Point (�C)
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2800- 3200
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Thermal Expansion (in./in.)
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0.0083
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Loss On Ignition
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<1.5%
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Thermal Conductivity @1000�C (cal/s-cm -�C)
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0.0025
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Mohs Hardness @20�C
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7.0 (Scale 7-8000)
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pH
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Slightly Basic
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TYPICAL CHEMICAL ANALYSIS OF OLIVINE SAND
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Free Silica Content (%)
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<0.1
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Water Solubility
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Not soluble
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Reactivity
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Inert
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MgO
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49% MAX.
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SiO2
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41% MAX.
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Fe2O3
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12 % MAX.
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Al2O3
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0.5-2.0% MAX.
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Cr2O3
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0.25% Max.
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CaO
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0.2% Max.
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L.O.I.
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1.5
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Applications : Blastcleaning, foundry sand, refractories, welding electrodes, iron ore processing, abrasives, agriculture, aggregates, roofing tiles, lasers, tundishes, ladle linings, electric arc furnaces, open hearth stoves, soaking pit bottoms, hot tops, forsterite bricks
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