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  2. Lapis lazuli - Wikipedia

    en.wikipedia.org/wiki/Lapis_Lazuli

    In late classical times and as late as the Middle Ages, lapis lazuli was often called sapphire (sapphirus in Latin, sappir in Hebrew), [28] though it had little to do with the stone today known as the blue corundum variety sapphire. In his book on stones, the Greek scientist Theophrastus described "the sapphirus, which is speckled with gold," a ...

  3. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    The Greek term for sapphire quite likely was instead used to refer to lapis lazuli. [72] During the Medieval Ages, European lapidaries came to refer to blue corundum crystal by "sapphire", a derivative of the Latin word for blue: sapphirus. [74] The sapphire is the traditional gift for a 45th wedding anniversary. [75]

  4. Asterism (gemology) - Wikipedia

    en.wikipedia.org/wiki/Asterism_(gemology)

    Asterism on the surface of a blue star sapphire. A purple-pink star sapphire displaying asterism in a platinum ring.. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone.

  5. List of names derived from gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_names_derived_from...

    Sapphire: Sapir (surname) Given name / surname Means sapphire or lapis lazuli in Hebrew. Neel Given name Greek origin, Nile River; blue sapphire. Neelam (given name) Given name Originates from India. From the Sanskrit word for sapphire. [6] Neelum Given name Variant of Neelam.

  6. Lapidary (text) - Wikipedia

    en.wikipedia.org/wiki/Lapidary_(text)

    For instance, ruby comes in various colors such as pinkish-mauve and pigeon-blood red; sapphires exist in pink, multiple shades of blue, and a colorless variety. Medieval and early contemporary texts had trouble sorting one gem from another. The possibility of a gem being fake or misidentified limited the stone's medical use.

  7. Lazurite - Wikipedia

    en.wikipedia.org/wiki/Lazurite

    Lazurite is a pigment (opalescent) and has a bright blue streak (especially as a component of the semiprecious stone lapis lazuli). Many hauynes have a white or pale blue streak and are translucent. The difference might be a consequence of the redox state (sulfate to sulfide ratio). [8] [14]

  8. Gemstones in the Bible - Wikipedia

    en.wikipedia.org/wiki/Gemstones_in_the_Bible

    Sapphire Sapphire. Sapphire - Greek ὑάκινθος hyakinthos; Vulg. hyacinthus ; the eleventh stone of the foundation of the heavenly city (Revelations 21:20). The genuine sapphire is a beautiful blue hyaline corundum and is composed of nearly pure alumina, its color resulting from the presence of iron oxide. Sapphire was obtained from India.

  9. Star of India (gem) - Wikipedia

    en.wikipedia.org/wiki/Star_of_India_(gem)

    The Star of India is a 563.35-carat (112.67 g) star sapphire, one of the largest such gems in the world. [1] [a] It is almost flawless and is unusual in that it has stars on both sides of the stone. The greyish-blue gem was mined in Sri Lanka [3] and is housed in the American Museum of Natural History in New York City.

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