Aloxite

Aloxite is a trade name rather than a formally recognized mineral species. It refers to synthetic or processed aluminum oxide (Al₂O₃), commonly known as corundum when naturally occurring. In industry, “aloxite” is widely used to describe abrasive-grade alumina.

🔬 Chemical and Structural Properties

• Formula: Al₂O₃
• Mineral Equivalent: Corundum (natural form).
• Crystal System: Trigonal (when crystalline).
• Color: Usually reddish-brown to gray when processed as abrasive grains.
• Hardness: 9 on Mohs scale (very hard, second only to diamond).
• Specific Gravity: ~3.9–4.1.
• Luster: Vitreous when crystalline; dull when granular.

⚙️ Industrial Uses

• Abrasives: Aloxite is a common abrasive in sandpaper, grinding wheels, and blasting media.
• Refractories: Used in furnace linings and high-temperature ceramics.
• Polishing: Employed in polishing compounds for metals, glass, and stone.
• Electronics: High-purity alumina is used in substrates and insulators.

📖 Context

• Trade Name: “Aloxite” is not an official mineral name but a commercial designation for abrasive alumina.
• Production: Manufactured by fusing bauxite or refining alumina, then crushing into grains of desired size.
• Appearance: Typically reddish-brown grains due to iron impurities, though high-purity grades are white.

✨ Conclusion

Aloxite is essentially synthetic aluminum oxide (Al₂O₃) marketed for industrial use, especially as an abrasive. While not a mineral species, it is directly related to natural corundum, sharing the same chemistry and hardness.

In short: Aloxite = trade name for abrasive alumina (Al₂O₃), industrially important, derived from corundum chemistry.