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Among other notable specimens on display were a 596-pound (270 kg) topaz, a 4.5 ton block of blue azurite/malachite ore that was found in the Copper Queen Mine in Bisbee, Arizona at the start of the 20th century; [13] and a rare, 100 carat (20 g) orange-colored padparadschan sapphire from Sri Lanka, considered "the mother of all pads."
The five cardinal gems. Clockwise from top: sapphire, ruby, emerald, amethyst, diamond. Cardinal gems are gemstones which have traditionally been considered precious above all others. The classification of the cardinal gems dates back to antiquity, and was largely determined by ceremonial or religious use as well as rarity. [1]
Anonymous owner [3] Black Star of Queensland: Australia 1938 733 carats (146.6 g) Star Black Anonymous owner [4] Star of India: Sri Lanka 563.4 carats (112.68 g) Star Blue-gray American Museum of Natural History, New York [5] Queen Marie of Romania: Sri Lanka 478.68 carats (95.736 g) Cushion Blue Anonymous owner [6] Logan Sapphire: Sri Lanka
Amethyst is a violet variety of quartz.The name comes from the Koine Greek αμέθυστος amethystos from α - a-, "not" and μεθύσκω (Ancient Greek) methysko / μεθώ metho (Modern Greek), "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. [1]
Eleventh Avenue is a north–south thoroughfare on the far West Side of the borough of Manhattan in New York City, located near the Hudson River.Eleventh Avenue originates in the Meatpacking District in the Greenwich Village and West Village neighborhoods at Gansevoort Street, where Eleventh Avenue, Tenth Avenue, and West Street intersect.
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]
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. Naturally occurring prasiolite has also been found in the Thunder Bay area of ...
Gadolinite; Gahnite; Gahnospinel; Garnet group: Pyralspite. Almandine; Pyrope; Spessartine; Ugrandite. Andradite. Demantoid; Melanite; Topazolite; Grossular ...