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  2. Star sapphire - Wikipedia

    en.wikipedia.org/wiki/Star_sapphire

    Star sapphire, a type of sapphire gemstone that exhibits a star-like reflection of light (an asterism) The Armstrong Siddeley Star Sapphire, a British car manufactured from 1958 to 1960; Star Sapphire (DC Comics character), the name of several fictional supervillains in DC Comics publications; Star Sapphire, a fictional character from the ...

  3. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as asterism; red stones are known as "star rubies". Star sapphires contain intersecting needle-like inclusions following the underlying crystal structure that causes the appearance of a six-rayed "star"-shaped pattern when viewed with a single overhead light source.

  4. Linde plc - Wikipedia

    en.wikipedia.org/wiki/Linde_plc

    Linde Gas gaseus nitrogen plant. Linde PLC is a global multinational chemical company. It was created as a result of a merger in 2018 of American company Praxair and Linde AG and is domiciled in Ireland and headquartered in the United Kingdom. Linde is the world's largest industrial gas company by market share and

  5. Asterism (gemology) - Wikipedia

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

    The star-effect may be also caused by the inclusions of hematite. In black star sapphire hematite needles formed parallel to the faces of the second order prism produce asterism. Some star sapphires from Thailand contain both hematite and rutile needles forming a 12-ray star. [3] Star-stones were formerly regarded with much superstition. [1]

  6. Verneuil method - Wikipedia

    en.wikipedia.org/wiki/Verneuil_method

    The Verneuil method (or Verneuil process or Verneuil technique), also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in the late 1883 [1] by the French chemist Auguste Verneuil.

  7. Armstrong Siddeley Sapphire (motor car) - Wikipedia

    en.wikipedia.org/wiki/Armstrong_Siddeley...

    The Star Sapphire won the £4,000 four-door coachwork class at the 1958 Earls Court Motor Show ahead of a Princess limousine and a Jaguar Mark IX. [12] A Star Sapphire saloon with automatic transmission was tested by the British magazine The Motor in 1959. It had a top speed of 99.6 mph (160.3 km/h) and could accelerate from 0–60 mph (97 km/h ...

  8. BOC (company) - Wikipedia

    en.wikipedia.org/wiki/BOC_(company)

    In January 2006, the Linde Group made a preliminary proposal to acquire BOC based on a £15 per share all-cash offer, which was rejected by the BOC board of directors. In March 2006, the second proposal based on a £16 per share all-cash offer, valuing the company at £8.2bn (US$14.4bn; €12bn), was accepted and takeover was completed on 5 ...

  9. Wikipedia : WikiProject Gemology and Jewelry/Gemstones

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    This page is a subtopic of Wikipedia:WikiProject Gemology and Jewelry, and is designed to enable the expansion and improvement of Gemology and Jewelry related articles. Gemology and Jewelry Wikipedians