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Lazurite was first described in 1890 for an occurrence in the Sar-e-Sang District, Koksha Valley, Badakhshan Province, Afghanistan. [3] It has been mined for more than 6,000 years in the lapis lazuli district of Badakhshan. It has been used as a pigment in painting and cloth dyeing since at least the 6th or 7th century. [9]
Lapis lazuli is found in limestone in the Kokcha River valley of Badakhshan province in north-eastern Afghanistan, where the Sar-i Sang mine deposits have been worked for more than 6,000 years. [20] Afghanistan was the source of lapis for the ancient Persian, Egyptian and Mesopotamian civilizations, as well as the later Greeks and Romans.
Lazulite or Azure spar [6]: 14 is a transparent to semi-opaque, blue mineral that is a phosphate of magnesium, iron, and aluminium, with the chemical formula (Mg,Fe 2+)Al 2 (PO 4) 2 (OH) 2. [3] Lazulite forms one endmember of a solid solution series with the darker, iron-rich scorzalite .
Azure spar, sometimes azur-spar, is a trivial and commercial, partly obsolete name for several of the most famous bright blue or blue-colored minerals, which also have similar names, most notably for lazurite and azurite, [1]: 14 and also for the less commonly used lazulite. [2]: 248
Celebrity hairstylist Jesus Guerrero was traveling and working with some of his closest clients prior to his sudden death at age 34.. Guerrero’s family announced his death on social media on ...
The US Department of Defense is developing plans to withdraw all US troops from Syria, NBC News reported on Wednesday, ... 12 charming small towns in the Hudson Valley. Sports.
The Prehistoric Sites and Decorated Caves of the Vézère Valley is a UNESCO World Heritage Site in France since 1979. [1] It specifically lists 15 prehistoric sites in the Vézère valley in the Dordogne department, mostly in and around Les Eyzies-de-Tayac-Sireuil , which has been called the "Capital of Prehistory". [ 2 ]
LONDON (Reuters) - Cryptocurrency exchange Bybit said last week hackers had stolen digital tokens worth around $1.5 billion, in what researchers called the biggest crypto heist of all time.