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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Amethyst

Ashstone Exports Ltd

Amethyst

Property Specification
Chemical Formula SiO₂ (Silicon Dioxide – Quartz variety)
Crystal System Trigonal
Hardness (Mohs) 7
Specific Gravity 2.65
Cleavage None
Fracture Conchoidal
Luster Vitreous
Transparency Transparent to translucent
Refractive Index 1.544 – 1.553
Color Purple to violet
Streak White
Tenacity Brittle
Crystal Habit Prismatic crystals, often in geodes or clusters
Pleochroism Weak (purple to bluish or reddish tones)
Birefringence 0.009
Dispersion 0.013 (low)