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The Quartz Watch– Walter Guyton Cady". The Lemelson Center, National Museum of American History, Smithsonian Institution. Archived from the original on 4 January 2009.
Arem, Joel E.; Clark, Donald; Smigel, Barbara. "Amethyst Value, Price, and Jewelry Information". International Gem Society . Retrieved April 20, 2021. Rare natural blue variety of Quartz. It is caused by inclusions of blue minerals, especially Dumortierite. Most "Blue Quartz" is what is popularly known Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. [10]The Quartz Watch– George Washington Pierce". The Lemelson Center, National Museum of American History, Smithsonian Institution. Archived from the original on 4 January 2009. Boggs, Sam (2006). Principles of sedimentology and stratigraphy (4thed.). Upper Saddle River, N.J.: Pearson Prentice Hall. p.130. ISBN 0131547283. The name quartz comes from the Greek, "krystallos," meaning ice. Amethyst also comes from a Greek word. "Amethystos," meaning "not drunk." It was believed one could drink all night and remain sober if they had an amethyst in their mouth. Citrine is from the French, "citrin," meaning yellow.
Blue Quartz is a relative newcomer in the world of crystal healing. While the mineral has been around for ages, this crystal doesn’t have the same lore and historical significance as other forms of Quartz. Platonov, Alexej N.; Szuszkiewicz, Adam (1 June 2015). "Green to blue-green quartz from Rakowice Wielkie (Sudetes, south-western Poland) – a re-examination of prasiolite-related color varieties of quartz". Mineralogia. 46 (1–2): 19–28. Bibcode: 2015Miner..46...19P. doi: 10.1515/mipo-2016-0004. Overall, practitioners believe that Blue Quartz’s physical perks are vast. It’s said to support the entire body and enhance a myriad of biological functions to keep you in tip-top shape. Metaphysical Properties
Amethyst occurs in primary hues from a light lavender or pale violet to a deep purple. Amethyst may exhibit one or both secondary hues, red and blue. [6] High-quality amethyst can be found in Siberia, Sri Lanka, Brazil, Uruguay, and the Far East. The ideal grade, called "Deep Siberian", has a primary purple hue of around 75–80%, with 15–20% blue and (depending on the light source) red secondary hues. [7] "Rose de France" is defined by its markedly light shade of the purple, reminiscent of a lavender/ lilac shade. These pale colors were once considered undesirable, but have recently become popular due to intensive marketing. [8]
This myth and its variations are not found in classical sources. However, the goddess Rhea does present Dionysus with an amethyst stone to preserve the wine-drinker's sanity in historical text. [34] Other cultural associations [ edit ]The largest amethyst geode found to date was the Empress of Uruguay, found in Artigas, Uruguay in 2007. It stands at a height of 3.27 meters, lays open along its length, and weighs 2.5 tons.
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