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  2. Chalcedony - Wikipedia

    en.wikipedia.org/wiki/Chalcedony

    The color of chalcedony sold commercially is often enhanced by dyeing or heating. [4] The name chalcedony comes from the Latin chalcedonius (alternatively spelled calchedonius) and is probably derived from the town of Chalcedon in Turkey. [5] The name appears in Pliny the Elder's Naturalis Historia as a term for a translucent kind of jaspis. [6]

  3. Gemstones in the Bible - Wikipedia

    en.wikipedia.org/wiki/Gemstones_in_the_Bible

    It is the seventh stone in Ezekiel 28:13 (in the Hebrew text, but occurring fifth in the Greek translation). The stones is also mentioned with frequency elsewhere (Exodus 24:10, Job 28:6,16, Song 5:14, Isaiah 54:11, Lamentations 4:7; Ezekiel 1:26, 10:1). Sappheiros is also the second foundation stone of the celestial Jerusalem (Revelations 21:19).

  4. Agate - Wikipedia

    en.wikipedia.org/wiki/Agate

    Agate (/ ˈ æ ɡ ɪ t / AG-it) is a variety of chalcedony, [1] which comes in a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks.The ornamental use of agate was common in ancient Greece, in assorted jewelry and in the seal stones of Greek warriors, [2] while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the Indus ...

  5. Jade - Wikipedia

    en.wikipedia.org/wiki/Jade

    Main jade producing countries. Jade is an umbrella term for two different types of decorative rocks used for jewelry or ornaments.Jade is often referred to by either of two different silicate mineral names: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminum in the pyroxene group of minerals). [1]

  6. Chrysoprase - Wikipedia

    en.wikipedia.org/wiki/Chrysoprase

    Chrysoprase, chrysophrase or chrysoprasus is a gemstone variety of chalcedony (a cryptocrystalline form of silica) that contains small quantities of nickel. Its color is normally apple-green, but varies from turquoise-like cyan to deep green. The darker varieties of chrysoprase are also referred to as prase.

  7. Hardstone carving - Wikipedia

    en.wikipedia.org/wiki/Hardstone_carving

    Mughal dagger hilt in jade with gold, rubies, and emeralds.. Hardstone carving, in art history and archaeology, is the artistic carving of semi-precious stones (and sometimes gemstones), such as jade, rock crystal (clear quartz), agate, onyx, jasper, serpentinite, or carnelian, and for objects made in this way.

  8. Aqeeq - Wikipedia

    en.wikipedia.org/wiki/Aqeeq

    A geode of chalcedony richly colored by hematite that gives it its rusty hues and marks it as Akik [contradictory] Aqeeq, akik or aqiq (Arabic: العقيق) means quartz in Arabic, and agate in Turkish, however in the context of rings usually refers to a ring set with a chalcedony stone. Well-known types of chalcedony are carnelian, agate, and ...

  9. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    Jade is most commonly associated with the colour green but can come in several other colours as well. Jade is closely linked to Asian culture, history, and tradition, and is sometimes referred to as the stone of heaven. Jasper Jasper is a gemstone of the chalcedony family that comes in a variety of colours.