Quote:
Originally Posted by HarryT
Aluminium oxide is not aluminium; it's misleading to call it so. When people talk about aluminium, it's reasonable to suppose that they're referring to the metallic element, rather than a compound which contains it.
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As someone else commented "Transparent Aluminium" is really a term from Star Trek. And even in that fictional universe, it isn't pure aluminium, it's a material with some of the attributes of aluminium (density, say) but transparent.
However, if someone talks about a screen cover of transparent aluminium, my bet is that they mean a sapphire (Al2O3) cover, for its scratch-resistance.