Are you a genuine corundum or a mere imitation?

This is one of the most durable and resilient abrasives on the planet — corundum. Or perhaps, it is pink sand gathered into something resembling a child's candy.

This time, I purchased several sets for different buyers, having tested everything (except white corundum), and the only substance that truly works is pink corundum. I bought it on AliExpress. See the results in the photos and read the messages from the sellers on their pages.

"Greetings to all. This abrasive initially appeared as shown on the left. Its intended purpose was to bevel the edges of a metal aperture, yet instead it transformed into a heap of dust of an indeterminate hue (please refer to the other photographs).

The piece composed of two parts simply could not withstand the arduous journey from China to Ukraine; perhaps it was frightened by the bombardments, or perhaps it chose to end its existence through self-destruction. If this is corundum, then I am an American. Ultimately, the decision whether to purchase this from the vendor rests with you."

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