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Meaning of corundum
A mineral, typically blue in color, used as a gemstone
Etymology of corundum
The word "corundum" comes from the Sanskrit word "kuruvinda" or "kurandam", which referred to a type of ruby or sapphire
   The term was later adopted into Latin as "corundum" and has been used in English since the 18th century to refer to the mineral
Synonyms
                                                ruby
                                                                        sapphire
                                                                        emerald
                                                                        diamond
                                                                        topaz
                                                                        garnet
                                                                        amethyst
                                                                        jade
                                                                        quartz
                                                                        beryl
                                                                        spinel
                                                                        tourmaline
                                                                        peridot
                                                                        opal
                                                                        turquoise
                                                                        zircon
                                                                        jadeite
                                                                        benitoite
                                                                        sunstone
                                                                        moonstone
                                                                        rhodolite
                                                                        tanzanite
                                                                        charoite
                                                                        lapis lazuli
                                                                        malachite
                                                                        amber
                                                                        jasper
                                                                        onyx
                                                                        agate
                                                                        carnelian
                                                                        chrysoberyl
                                                                        kyanite
                                                                        sillimanite
                                                                        andalusite
                                                                        staurolite
                                                                        axinite
                                                                        scapolite
                                                                        diopside
                                                                        epidote
                                                                        vesuvianite
                                                                        apatite
                                                                        sphene
                                                                        titanite
                                                                        zoisite
                                                            
            Definitions
- A mineral, typically blue in color, used as a gemstone, consisting of aluminium oxide
- * A very hard mineral, used for making abrasives and refractories
Usage Examples
- Corundum is a very hard mineral, making it useful for a variety of industrial applications
- * The corundum crystal was a deep blue color, with intricate inclusions that gave it a unique appearance
- * Corundum is used to make abrasives, such as sandpaper and grinding wheels
Antonyms
                                                soft mineral
                                                                        weak stone
                                                                        fragile gem
                                                                        delicate crystal
                                                                        brittle ore
                                                                        powdery substance
                                                                        loose sediment
                                                                        crumbling rock
                                                                        weak ore
                                                                        inferior stone
                                                                        poor gem
                                                                        low-quality mineral
                                                                        common rock
                                                                        ordinary stone
                                                                        unvaluable gem
                                                                        unremarkable mineral
                                                                        uninspiring crystal