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Gold nuggets of various sizes have been found throughout the world. Historically, the nuggets are melted down and formed into new objects. The Welcome Stranger is the largest alluvial gold nugget ever found, which had a calculated refined weight of 97.14 kilograms (3,123 ozt). Three of the biggest nuggets come from the Brazilian Serra Pelada mine.
Kautz had the 60 lb troy (22.4 kg) nugget etched with acid to remove most of the quartz; the resulting gold leaf specimen is 44 lbs troy (16.4 kg). A small piece of the original rock was left in the back to show the original matrix. Kautz opened a museum devoted to the history of gold mining in the area, to display the gold specimen.
Nuggets are also referred to by their fineness, for example "865 fine" means the nugget is 865 parts per thousand in gold by mass. The common impurities are silver and copper. Nuggets high in silver content constitute the alloy electrum. [5] The chemical composition of supergene gold nuggets can reveal the characteristics of the primary ore. [6]
A gold nugget of 5 mm (0.2 in) in diameter (bottom) can be expanded through hammering into a gold foil of about 0.5 m 2 (5.4 sq ft). The Toi gold mine museum, Japan.. Gold leaf is gold that has been hammered into thin sheets (usually around 0.1 μm thick [1]) by a process known as goldbeating, [2] for use in gilding.
Deason and Oates were finally paid an estimated £9,381 (equivalent to A$1,485,000 in 2022) for their nugget, which became known as the "Welcome Stranger". At August 2019 gold prices, it would be worth US$3.4 million [2.3 million GBP]. It was heavier than the "Welcome Nugget" of 69.0 kilograms (2,217 ozt) that had been found in Ballarat in
Jewel case, Jewel box or Super Jewel Box, types of Optical disc packaging Tomb of I'timād-ud-Daulah , at Agra is known as Jewel Box for its intricate parchin kari work Topics referred to by the same term
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