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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.
In the royal cemetery lapis lazuli is found as jewelry, plaques and amulets, and as inlays in gaming boards, musical instruments, and ostrich-egg vessels as well as parts of larger sculptural groups such as the "Ram in a Thicket" and as the beard of a bull attached to a lyre. Some of the larger objects include a spouted cup, a dagger-hilt, and ...
A sample from Yemen was mainly composed of volcanic glass with a few zeolites (e.g., clinoptilolite). [3] The geological term cinder is synonymous and interchangeable with scoria, though scoria is preferred in scientific literature. [2] [4] The word comes from Greek σκωρία, skōria, rust. In earlier terminology, scoria was usually defined ...
The Neo-Sumerian ruler Gudea (c. 2100 BCE), in his Gudea cylinders (cylinder B XIV), mentioned his procurement of "blocks of lapis lazuli and bright carnelian from Meluhha." [ 16 ] [ 17 ] Meluhha is generally identified with the Indus region, and there are no known mentions of Meluhha after 1760 BCE. [ 18 ]
A very important advance in glass manufacture was the technique of adding lead oxide to the molten glass; this improved the appearance of the glass and made it easier to melt using sea-coal as a furnace fuel. This technique also increased the "working period" of the glass, making it easier to manipulate.
English: Large lapis lazuli specimen as seen at the National Museum of Natural History 2021 'Objects of Wonder' exhibit. This particular piece weighs over 100kg (about 250lbs). This particular piece weighs over 100kg (about 250lbs).
A stork carrying a baby doll grabs the attention of children looking behind the glass in this early 1980s photo. Laurent MAOUS - Getty Images. Macy's: 1995.
Azure spar, sometimes azur-spar (German: Lazur spath, Blau spath) 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.