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DK Sillimanite Sand

DK Sillimanite Sand is a naturally occurring alumino-silicate mineral (Al₂SiO₅) with an alumina content of 57–60%. Found in coastal deposits and rock formations, it is closely associated with other heavy minerals such as ilmenite, rutile, and zircon.

As a raw, untreated mineral, sillimanite is an important material for producing high alumina refractories, widely used in steel, glass, petrochemical, zinc, and foundry industries. Its strength, purity, and thermal stability make it an essential choice for applications that demand high resistance and durability.

Key Properties
  • Purity: 99%
  • Specific Gravity: 3.2 – 3.5 g/cm³
  • Hardness: 6.5 – 7.5 on Moh’s Scale
  • Colour: Grey, Brown
Grades of DK Sillimanite Sand
  • Al₂O₃ content: 57% – 60%
Applications
  • Refractories
  • Foundry
  • Steel, zinc, and glass industries
  • Abrasives, ceramics, and non-slip flooring
Why Choose DK Sillimanite Sand?
  • High purity with no contamination
  • Excellent alumina content (57–60%)
  • Three-stage quality control with advanced laboratory testing
  • Customised packaging and quick delivery from multiple stock points
  • ISO-approved quality standards
  • Flexible payment terms and competitive pricing
  • 24×7 dedicated customer support

With its unique high-alumina composition and superior stability, DK Sillimanite Sand is trusted globally as a reliable raw material for industries that demand strength and consistency.

DK Zircon sand with ZrO2 content from 63% to 66%

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Heavy Minerals Sand

DK Garnet Abrasive

DK Garnet Abrasive Sand is a trusted choice worldwide for sandblasting, surface preparation, and waterjet cutting.
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DK Ilmenite

DK Ilmenite is a high-quality titanium-iron oxide mineral (FeTiO₃), recognised as the primary source for producing titanium dioxide pigment and titanium metal.
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DK Rutile Sand

DK Rutile Sand is a naturally occurring, high-grade titanium-bearing mineral with a TiO₂ content of 90–95%.
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DK Zircon Sand

DK Zircon Sand is a naturally occurring heavy mineral formed along ancient coastlines, where wind and wave action concentrated heavier particles.
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DK Sillimanite Sand

DK Sillimanite Sand is a naturally occurring alumino-silicate mineral (Al₂SiO₅) with an alumina content of 57–60%.
Learn more