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Words related to sapphire

sap·phire
S s

  • brazilian sapphire

    a blue variety of tourmaline used as a gem: not a true sapphire.

  • padparadschah sapphire

    a rare, yellowish-orange sapphire found in Sri Lanka.

  • star sapphire

    a sapphire, cut cabochon, exhibiting asterism in the form of a colorless six-rayed star.

  • corundum

    a white, grey, blue, green, red, yellow, or brown mineral, found in metamorphosed shales and limestones, in veins, and in some igneous rocks. It is used as an abrasive and as gemstone; the red variety is ruby, the blue is sapphire. Composition: aluminium oxide. Formula: Al2O3. Crystal structure: hexagonal (rhombohedral)

  • mohs scale

    a scale of hardness used in mineralogy. Its degrees, in increasing hardness, are: talc 1; gypsum 2; calcite 3; fluorite 4; apatite 5; feldspar 6; quartz 7; topaz 8; sapphire 9; diamond 10. Abbreviation: MSH.

  • water sapphire

    a transparent variety of cordierite, found in Sri Lanka, Madagascar, and elsewhere, sometimes used as a gem.
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