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Crater of Diamonds State Park is a 911-acre (369 ha) Arkansas state park in Pike County, Arkansas, in the United States.The park features a 37.5-acre (15.2-hectare) plowed field, one of the few diamond-bearing sites accessible to the public.
It is north of the highway and between Florissant and Lake George. Crystal Peak itself is a distinctive, conical knoll about 3.5 miles (5.6 km) due north of Florissant. Geologically, it is also an intrusive center and the geological maps show a very characteristic ring-shaped structure about 5 miles (8.0 km) in diameter.
The hunt involves a search for twelve treasure boxes, the clues to which were provided in a book written by Preiss in 1982, also called The Secret. These boxes were buried at secret locations in cities across the United States and Canada that symbolically represent events and peoples that played significant roles in North American history ...
This a public gem mine located in the Piedmont of North Carolina in Alexander County, specifically in the town of Hiddenite. [ 2 ] At the mine, more than 63 types of gems and minerals can be found including emeralds , amethyst , sapphire , aquamarine , topaz , garnet , as well as the stone hiddenite, which is a stone only found in this local area.
^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...
The treasure would be composed of "carved silver, gold jewellery, pearls and stones of value, Chinese porcelain, rich fabrics, paintings and perhaps 500,000 pesos". [10] The stories about this treasure are varied, some place it in the environment of the Roques de Anaga , while others place it in the zone of Punta del Hidalgo and the cave of San ...
Egypt Valley was home to some of the largest earth moving machines, most notably the GEM of Egypt, and the less known Mountaineer. [6] [7] The high walls and unique look to the area was the end-result of this mining method. Most coal extraction ceased in the early 1990s.
This list of mines in the United States is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.