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Uvarovite is a chromium-bearing garnet group species with the formula: Ca 3 Cr 2 (Si O 4) 3. It was discovered in 1832 by Germain Henri Hess who named it after Count Sergei Uvarov (1765–1855), a Russian statesman and amateur mineral collector. [2] It is classified in the ugrandite group alongside the other calcium-bearing garnets andradite ...
The setting design is a modified cross pattern with a central boss (raised ornament) and four additional, smaller bosses, decorated with white shell. Constructed in gold, and inlaid with blue glass, white shell, pearl and garnet, the brooch is 8 centimetres (3.1 in) in diameter. [2] The brooch has been dated to the seventh century. [3]
Garnet sand is also used for water filtration media. As an abrasive, garnet can be broadly divided into two categories; blasting grade and water jet grade. The garnet, as it is mined and collected, is crushed to finer grains; all pieces which are larger than 60 mesh (250 micrometers) are normally used for sand blasting.
Rhodolite is a varietal name for rose-pink to red mineral pyrope, a species in the garnet group. It was first described from Cowee Valley , Macon County , North Carolina . [ 2 ] The name is derived from the Greek "rhodon" for "rose-like", in common with other pink mineral types (such as rhodochrosite , rhodonite ).
The hoard includes almost 4,600 items and metal fragments, [8] [1] totalling 5.094 kg (11.23 lb) of gold and 1.442 kg (3.18 lb) of silver, with 3,500 cloisonné garnets [6] [9] and is the largest treasure of Anglo-Saxon gold and silver objects discovered to date, eclipsing, at least in quantity, the 1.5 kg (3.3 lb) hoard found in the Sutton Hoo ship burial in 1939.
In the 2018-2019 shutdown, the White House furloughed more than half of the staff in the Executive Office of the President. All agencies have their own contingency plans for an appropriations lapse.
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