Welcome To Ashstone Exports LTD

  • Nigeria

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Welcome to Ashstone Exports LTD

At Ashstone Exports Ltd, we are committed to sustainability, ethical sourcing, and long-term growth. We exist to unlock Nigeria’s economic potential and deliver value to partners across continents. Our story is one of quality, integrity, and ambition—driven by a belief that Africa’s resources can fuel global industries.

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  • House 2 Amasom 18 Bishop Edward Benson street Ogudu GRA phase 2

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Zircon

Ashstone Exports Ltd

Zircon

Property Specification
Chemical Formula ZrSiO₄ (Zirconium Silicate)
Crystal System Tetragonal
Hardness (Mohs) 6.0 – 7.5
Specific Gravity 3.90 – 4.73
Cleavage Poor / indistinct
Fracture Conchoidal to uneven
Luster Adamantine to vitreous
Transparency Transparent to translucent
Refractive Index 1.92 – 2.01
Color Colorless, yellow, brown, red, green, blue
Streak White
Tenacity Brittle
Crystal Habit Prismatic, often terminated with pyramids
Pleochroism Weak to strong (depends on color)
Birefringence 0.036 – 0.055 (high)
Dispersion 0.039 (high; gives a diamond-like sparkle)