Just curious: Is aluminum oxide used for woodworkers "sandpaper" as well? I think when most people think of sandpaper it's sanding wood that comes to mind (though from the photos he used harder grades as that black paper is probably carborundum).
Garnet is frequently used for woodwork, but aluminium oxide is the most common, found in the widest category/variety of grits, and can be used on wood and metal as well. In the video, he mentions using sandpaper which abrading material is aluminium oxide.
abeliefsystem wrote: »
Everyone will rush out and buy a secondary glass protector anyway.
That way,with a bad scratch means you buy another protector. Sapphire cannot even do that.
Looks like it failed the drop test
The Stainless Steel Sapphire Crystal survives the same test just fine:
Reports of Ceramic backs scratching too.
So that settles that ... Sapphire is much better crystal, less likely to scratch and break. Definitely worth the extra money.