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Asterism is generated by reflections of light from twin-lamellae or from extremely fine needle-shaped acicular inclusions within the stone's crystal structure. [1] A common cause is oriented sub-microscopic crystals of rutile within the gem mineral. It occurs in rubies, sapphires, garnet, diopside, and spinel when a cabochon is cut from a ...
Apotheosis of Venice (1585) by Paolo Veronese, a ceiling in the Doge's Palace The Apotheosis of Cornelis de Witt, with the Raid on Chatham in the Background.. Apotheosis (from Ancient Greek ἀποθέωσις (apothéōsis), from ἀποθεόω / ἀποθεῶ (apotheóō/apotheô) 'to deify'), also called divinization or deification (from Latin deificatio 'making divine'), is the ...
A bezel is a strip of metal bent into the shape and size of the stone and then soldered to the piece of jewelry. The stone is then inserted into the bezel, and the metal edge of the bezel pressed over the edge of the stone, holding it in place. This method works well for either cabochons or faceted stones. [6]
Lapidary (from the Latin lapidarius) is the practice of shaping stone, minerals, or gemstones into decorative items such as cabochons, engraved gems (including cameos), and faceted designs. A person who practices lapidary techniques of cutting, grinding, and polishing is known as a lapidary or lapidarist .
Coso artifact in 2018. The Coso artifact is an object falsely claimed by its discoverers to be a spark plug encased in a geode.Discovered on February 13, 1961, by Wallace Lane, Virginia Maxey, and Mike Mikesell while they were prospecting for geodes near the town of Olancha, California, it has long been claimed as an example of an out-of-place artifact. [1]
An engraved gem, frequently referred to as an intaglio, is a small and usually semi-precious gemstone that has been carved, in the Western tradition normally with images or inscriptions only on one face. [1] The engraving of gemstones was a major luxury art form in the ancient world, and an important one in some later periods. [2]
Crimson Gem Saga is a role-playing video game developed for the PlayStation Portable and iOS. It was developed by South Korean studio IRONNOS and published in Korea by SK Telecom as Astonishia Story 2 .
In more recent history, moonstone became popular during the Art Nouveau period; French goldsmith René Lalique and many others created a large quantity of jewellery using this stone. [ 5 ] The moonstone is the Florida State Gemstone; it was designated as such in 1970 to commemorate the Moon landings , which took off from Kennedy Space Center .