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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…

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Emery (rock)

Nodes33
Edges32
Triples10
Avg. degree1.94
Density0.060606
Components1

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Important terminology

emery used abrasive minerals corundum rock main oxide industrial black also turkey dark granular make powder largely consists aluminium mixed

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
the iron-bearing spinelsinstance ofmixed with other minerals0.80text
hercyniteinstance ofmixed with other minerals0.80text
and magnetiteinstance ofmixed with other minerals0.80text
and also rutileinstance ofmixed with other minerals0.80text
magnesiainstance ofIndustrial emery may contain a variety of other minerals and synthetic compounds0.80text
mulliteinstance ofIndustrial emery may contain a variety of other minerals and synthetic compounds0.80text
and silica.Emery is black or dark grey in colourinstance ofIndustrial emery may contain a variety of other minerals and synthetic compounds0.80text
less dense than translucent-brown corundum with a specific gravity of between 3.5instance ofIndustrial emery may contain a variety of other minerals and synthetic compounds0.80text
3.8instance ofIndustrial emery may contain a variety of other minerals and synthetic compounds0.80text
magnetite is near 6instance ofbut the hardness of others0.80text

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