Emery (rock)

⭐ In the context of abrasive materials, emery's effectiveness stems from its primary mineral component, which is a crystalline form of what element?

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⭐ Core Definition: Emery (rock)

Emery, or corundite, is a dark granular rock used to make an abrasive powder. The rock largely consists of corundum (aluminium oxide), mixed with other minerals. Industrial emery may contain a variety of other minerals and synthetic compounds. Crushed or naturally eroded emery (known as black sand) is used as an abrasive. Turkey and Greece are the main suppliers of the world's emery.

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Emery (rock) in the context of Naxos

Naxos (/ˈnæksɒs, -ss/; Greek: Νάξος, pronounced [ˈnaksos]) is a Greek island belonging to the Cyclades island group. It is the largest island in the group. The largest town and capital of the island is Chora or Naxos City, with 8,897 inhabitants (2021 census). The main villages are Filoti, Apiranthos, Vivlos, Agios Arsenios, Koronos and Glynado. It was an important centre during the Bronze Age Cycladic Culture and in the Ancient Greek Archaic Period. The island is famous as a source of emery, a rock rich in corundum, which until modern times was one of the best abrasives available.

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