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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Aquamarine

Ashstone Exports Ltd

Aquamarine

Property Specification
Chemical Formula Be₃Al₂Si₆O₁₈ (Beryl family)
Crystal System Hexagonal
Hardness (Mohs) 7.5 – 8
Specific Gravity 2.68 – 2.74
Cleavage Poor, basal
Fracture Conchoidal to uneven
Luster Vitreous
Transparency Transparent to translucent
Refractive Index 1.577 – 1.583
Color Light blue to blue-green
Streak White
Tenacity Brittle
Crystal Habit Prismatic, hexagonal crystals
Pleochroism Weak to moderate (blue to greenish-blue)
Birefringence 0.005 – 0.009
Dispersion 0.014 (low)