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On 24 June 2020, a new record for the world's largest rough tanzanite was set after a small-scale miner, Saniniu Laizer, mined two stones of 9.72 kg (21.4 lb) and 5.1 kg (11 lb) and sold them to the Government of Tanzania through Ministry of Mining for TSh 7.74 billion (US$3.35 million) [23] surpassing a record of 16,839 carats (3.37 kg; 7.42 ...
Monolith with bull, fox, and crane in low relief at Göbekli Tepe. The density of most stone is between 2 and 3 tons per cubic meter. Basalt weighs about 2.8 to 3.0 tons per cubic meter; granite averages about 2.75 metric tons per cubic meter; limestone, 2.7 metric tons per cubic meter; sandstone or marble, 2.5 tons per cubic meter.
Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. Blue crystals are known under the name tanzanite. It has a vitreous luster and a conchoidal to uneven fracture. When euhedral, zoisite crystals are striated parallel to the principal axis (c-axis). Also parallel to the principal axis is one direction of perfect cleavage.
Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US
The quarries and the stone temples here are visible from boats on the Nile. The quarry was active sometime during the Old Kingdom through the Late Period and remains largely intact in modern time. [1] Typical materials known from this site are: Sandstone [1] Some of the monuments known to come from this site are: Temple of Horemheb
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