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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 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.
Jöns Jacob Berzelius (20 August 1779 – 7 August 1848), discovery of silicon (1824), selenium (1817), thorium (1858), and cerium (1803, with Klaproth). John Dalton (1766–1844), British physicist and chemist (Dalton's atomic theory, 1800 and later). French physicist André-Marie Ampère (1775–1836) suggests the element fluorine (1810).
Archaeologists uncovered a 480-year-old gun in Arizona. It’s now considered the oldest firearm ever found within the continental United States.
The ridge is known for its abundance of amethyst, opal and petrified wood. It was referred to as Specimen Mountain by local miners and was probably named by prospectors well before 1870. [ 2 ] The south side of the ridge is traversed by the 18.8-mile (30.3 km) Specimen Ridge Trail between Tower Junction and Soda Butte Creek .
Prasiolite (also known as green quartz, green amethyst or vermarine) is a green variety of quartz. Since 1950, almost all natural prasiolite has come from a small Brazilian mine, [ citation needed ] but it has also been mined in the Lower Silesia region of Poland .
On August 12, 1990, Susan Hendrickson -- a fossil hunter -- discovered three huge bones protruding out of a cliff near Faith, South Dakota. Those burned turned out to be part of the largest ever T ...
Scientists have confirmed a cave on the moon, not far from where Neil Armstrong and Buzz Aldrin landed 55 years ago, and suspect there are hundreds more that could house future astronauts. It's ...