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  2. Morganite (gem) - Wikipedia

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

    Following the discovery of a new locality for rose beryl in Madagascar in 1910, George Kunz proposed the name morganite at a meeting of the New York Academy of Sciences on 5 December 1910 to honour his friend and customer J.P. Morgan [6] [7] for his financial support for the arts and sciences, and his important gifts of gems to the American Museum of Natural History in New York and to the ...

  3. Topaz - Wikipedia

    en.wikipedia.org/wiki/Topaz

    Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]

  4. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    The socio-economic dynamics of the gemstone industry are shaped by market forces and consumer preferences and typically go undiscussed. Changes in demand and prices can significantly affect the livelihoods of those involved in gemstone mining and trade, particularly in developing countries where the industry serves as a crucial source of income ...

  5. List of most expensive paintings - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive...

    This sale tripled the previous record, and introduced a new era in top art sales. Before this, the highest absolute price paid for a painting was £8.1 million (£22.9 million in 2023 currency) paid by the J. Paul Getty Museum for Andrea Mantegna's Adoration of the Magi at Christie's in London on 18 April 1985. [5]

  6. Engagement ring - Wikipedia

    en.wikipedia.org/wiki/Engagement_ring

    [citation needed] After the wedding, the bride may choose to have the two pieces welded together, to increase convenience and reduce the likelihood of losing one of the rings. [citation needed] A trio ring set includes a women's engagement ring, a women's wedding band, and a men's wedding band. These sets often have matching rings and are lower ...

  7. Milorganite - Wikipedia

    en.wikipedia.org/wiki/Milorganite

    Milorganite building. Milorganite is a brand of biosolids fertilizer produced by treating sewage sludge by the Milwaukee Metropolitan Sewerage District. [1] The term is a portmanteau of the term Milwaukee Organic Nitrogen.

  8. Moganite - Wikipedia

    en.wikipedia.org/wiki/Moganite

    Moganite is an oxide mineral with the chemical formula Si O 2 (silicon dioxide) that was discovered in 1976.It was initially described as a new form of silica from specimens found in the Barranco de Medio Almud, in the municipality of Mogán on the island of Gran Canaria, in the Canary Islands (), [5] receiving in a later work the name derived from this locality. [6]

  9. Carbon fibers - Wikipedia

    en.wikipedia.org/wiki/Carbon_fibers

    Morganite decided that carbon-fiber production was peripheral to its core business, leaving Courtaulds as the only big UK manufacturer. Courtaulds's water-based inorganic process made the product susceptible to impurities that did not affect the organic process used by other carbon-fiber manufacturers, leading Courtaulds ceasing carbon-fiber ...

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