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  2. Lapis lazuli - Wikipedia

    en.wikipedia.org/wiki/Lapis_Lazuli

    Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.

  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. Timeline of the discovery and classification of minerals

    en.wikipedia.org/wiki/Timeline_of_the_discovery...

    Bronze Age, Near East (3600–1200 BC), Europe (3600–600 BC), Indian Subcontinent (3300–1200 BC). Chalcolithic Age (copper age) beginning about 7,000 years ago: copper, gold, silver, mercury. In the early Bronze Age, lead was used with antimony and arsenic. [2] The use of meteoric iron–nickel alloy has been traced as far back as 3500 BC.

  5. Gemstones in the Bible - Wikipedia

    en.wikipedia.org/wiki/Gemstones_in_the_Bible

    Lapis lazuli is often speckled with shining pyrites giving it the appearance of being sprinkled with gold dust. It is composed of silica, alumina, and alkali and is an opaque substance easily engraved. Lapis lazuli seems more probable as its qualities are better suited for the purposes of engraving (Lam., iv, 7; Ex., xxviii, 17; xxxix, 13).

  6. Blue pigments - Wikipedia

    en.wikipedia.org/wiki/Blue_pigments

    It was produced from lapis lazuli, a mineral whose major source was the mines of Sar-e-Sang in what is now northeastern Afghanistan. [1] It was transformed into a pigment by the Afghans beginning in about the 5th century, and exported by caravans to India. It was the most expensive blue used by Renaissance artists.

  7. Egyptian blue - Wikipedia

    en.wikipedia.org/wiki/Egyptian_blue

    The term for it in the Egyptian language is ḫsbḏ-ỉrjt (khesbedj irtiu), which referred to artificial lapis lazuli (ḫsbḏ). [5] It was used in antiquity as a blue pigment to color a variety of different media such as stone, wood, plaster, papyrus, and canvas, and in the production of numerous objects, including cylinder seals, beads ...

  8. Vintage Depression Glass Worth Wallet-Shattering Prices - AOL

    www.aol.com/vintage-depression-glass-worth...

    Highest listing price on eBay: $750 Hazel Atlas Blue Royal Lace stands out among Depression glass patterns, prized for its intricate design and vibrant cobalt blue hue. Produced between 1934 and ...

  9. Luminous gemstones - Wikipedia

    en.wikipedia.org/wiki/Luminous_gemstones

    In 1735, the French chemist Charles François de Cisternay du Fay determined that lapis lazuli, emerald, and aquamarine were luminescent. Josiah Wedgwood, in 1792, found phosphoresce from rubbing together two pieces of quartz or of agate, and wrote that the ruby gives "a beautiful red light of short continuance."

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