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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
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.
The first ever recorded emeralds date back to ancient Egypt, where they were particularly admired by Queen Cleopatra. In addition to their aesthetic value, emeralds were highly valued in ancient times because they were believed to increase intelligence, protect marriages, ease childbirth, and thought to enable its possessor the power of ...
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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 ...
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 ...
However, Barnesville shares many similarities with other petroglyph sites in western Pennsylvania, northern West Virginia, and other parts of eastern Ohio; as a result, petroglyph specialist James L. Swauger concluded that it was the work of the people that also created such sites as the Indian God Rock, the Sugar Grove Petroglyphs, and the ...
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 ...