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The earliest known emerald is a single unengraved stone mounted in a gold ring, dated circa 330–300 BC. A 3rd century BC date is far too late for emeralds to appear in Exodus and Ezekiel. [5] However, the Greek and Latin terms smaragdos, smaragdus are broad enough to include other green gemstones, the most valuable of which was the emerald.
In 1998, emeralds were discovered in Yukon. Emerald is a rare and valuable gemstone and, as such, it has provided the incentive for developing synthetic emeralds. Both hydrothermal [37] and flux-growth synthetics have been produced. The first commercially successful emerald synthesis process was that of Carroll Chatham. [38]
Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. [2] Beryl has a hardness of 7.5–8 on the Mohs scale. [2] Most emeralds have many inclusions, [3] so their toughness (resistance to breakage) is
This is a list of National Historic Landmarks in Ohio and other landmarks of equivalent landmark status in the state. The United States' National Historic Landmark (NHL) program is operated under the auspices of the National Park Service , and recognizes structures, districts, objects, and similar resources according to a list of criteria of ...
Emeralds, Muzo Mine, Vasquez-Yacopí Mining District, Colombia. Emeralds are green and sometime green with a blueish-tint precious gemstones that are mined in various geological settings. They are minerals in the beryl group of silicates. For more than 4,000 years, emeralds have been among the most valuable of all jewels.
3. Wheat Pennies. Every so often, news of a rare coin, perhaps a recently discovered misstep by the U.S. Mint, gets people emptying their pockets in search of a jackpot find — and good luck with ...
Ohio’s historical society is one step away from gaining control of ancient ceremonial and burial earthworks maintained by a country club where members golf alongside the mounds. A trial was ...
Glass makers were supposedly so skilled that they could fool the public into thinking that glass beads and ornaments were actually gemstones. [7] When genuine gems were utilized, the stones preferred by Roman women were amethyst, emerald, and pearl. [8] Pearls were rare and expensive and were used in Roman jewelry up until the end of the Republic.