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Nicholas C. Creede (c. 1843 – July 12, 1897) was an American prospector famous for discovering the Holy Moses Amethyst vein and other mining properties near Creede, Colorado in the late 1880s and early 1890s.
January 1916, scientific journal: American Mineralogist, first issue. 1916, X-ray powder diffraction: "Peter Debye (1884–1966) – Paul Scherrer (1890–1969) powder method". 1919, founding of the Mineralogical Society of America (MSA). Georg Menzer (1897–1989) solves the first crystal structure of garnet (1925). [22]
An amethyst geode that formed when large crystals grew in open spaces inside the rock. The largest amethyst geode found as of 2007 was the Empress of Uruguay, found in Artigas, Uruguay in 2007. It stands at a height of 3.27 meters, lies open along its length, and weighs 2.5 tons. Amethyst is also found and mined in South Korea. [19]
The Paleolithic cave art was first discovered in 1868 and depicts bison, deer, and other animals. Scientists have dated the paintings to be between 13,000 to 14,000 years old.
Archaeologists uncovered a 480-year-old gun in Arizona. It’s now considered the oldest firearm ever found within the continental United States.
^ 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 ...
Chaco Canyon, in modern-day New Mexico, was home to many indigenous people over the millennia, according to the study, including the ancient Pueblo who occupied the region between 850 and 1150 A.D ...
The Empress of Uruguay is the world's largest amethyst geode, standing at a height of 3.27 meters. It is open along its length and weighs 2.5 tons in its current state. It was discovered in 2007 in the Artigas department, Uruguay by the Uruguayan mining company Le Stage Minerals. Its estimated value is US $190,000, although it is not for sale.