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In 1885, a man in Madrid found a map in a family Bible, which also led him to the map etched in limestone. He found the cave, but not the hidden gold. He did not stay long, due to ill health. Then in the 1900s, George Dunbar looked for the gold while pretending to run a mining company. He found a few pieces of the plundered gold.
Caen Stone – Limestone quarried near Caen, France; Lutetian limestone – Type of limestone from Paris, or "Paris stone" (city buildings are widely faced with it) . Saint-Maximin – commune in Oise, France, or Oise, limestone (variety of Lutetian)
Spanish American gold coins were minted in one-half, one, two, four, and eight escudo denominations, with each escudo worth around two Spanish dollars or $2. The two-escudo (or $4 coin) was the "doubloon" or " pistole ", and the large eight-escudo (or $16) was a "quadruple pistole".
Travertine (/ ˈ t r æ v ər t iː n / TRAV-ər-teen) [1] is a form of terrestrial limestone deposited around mineral springs, especially hot springs. It often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and rusty varieties.
Gold was mined in Roman times in the basin. Las Medulas is the most famous mine. Greasy wool was used to trap gold flakes washing past from the alluvial deposits. North of Ribón is another 2000-year-old gold mine. Two Eocene basins in Portugal are the Mondego and Lower Tagus basins which are elongated in the southwest direction.
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The area is crossed by low east–west oriented ridges of Cenozoic limestone and is ... size as those used by the Spanish. ... [57] Cortés had 140 Spanish soldiers ...
Cave of the Crystals or Giant Crystal Cave (Spanish: Cueva de los cristales) is a cave connected to the Naica Mine at a depth of 300 metres (980 ft), in Naica, Chihuahua, Mexico. It takes the form of a chamber within the limestone host rock of the mine, and is about 109 metres (358 ft) long with a volume of 5,000 to 6,000 cubic metres (180,000 ...