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Lapis lazuli (; ), or lapis for short, is a deep-blue used as a that has been prized since for its intense color. Originating from the Persian word for the gem, lāžward, lapis lazuli is a rock composed primarily of the minerals , and . As early as the 7th millennium BC, lapis lazuli was mined in the mines,David Bomford and Ashok Roy, A Closer Look- Colour (2009), National Gallery Company, London, () in , and in other mines in province in modern northeast .

(1999). 9781575060422, Eisenbrauns. .
Lapis lazuli artifacts, dated to 7570 BC, have been found at , which is the oldest site of Indus Valley civilisation. Lapis was highly valued by the Indus Valley Civilisation (3300–1900 BC). Lapis beads have been found at burials in , the , and as far away as . It was used in the funeral mask of Tutankhamun (1341–1323 BC).Alessandro Bongioanni & Maria Croce

By the end of the , Europe began importing Lapis lazuli in order to grind it into powder and make pigment. Ultramarine was used by some of the most important artists of the and , including , , and , and was often reserved for the clothing of the central figures of their paintings, especially the . Ultramarine has also been found in of and , perhaps as a result of licking their painting brushes while producing medieval texts and manuscripts.


History
Excavations from show that Lapis lazuli was introduced to approximately in the late , c. 4900–4000 BCE. A traditional understanding was that the Lapis lazuli was mined some fifteen hundred miles to the east in . Indeed, the لاژورد , also written لاجورد , is commonly interpreted as having an origin in a local place name.

From the Persian, the لازورد is the etymological source of both the English word azure (via Old French azur) and lazulum, which came to mean 'heaven' or 'sky'. To disambiguate, lapis lazulī ("stone of lazulum") was used to refer to the stone itself, and is the term ultimately imported into .

(2025). 9780444522399, Elsevier. .
Lazulum is etymologically related to the color blue, and used as a root for the word for blue in several languages, including Spanish and Portuguese azul.

Mines in northeast Afghanistan continue to be a major source of lapis lazuli. Important amounts are also produced from mines west of in Russia, and in the mountains in which is the source that the used to carve artifacts and jewelry. Smaller quantities are mined in Pakistan, Italy, Mongolia, the United States, and Canada.


Science and uses

Composition
The most important mineral component of lapis lazuli is (25% to 40%), a blue of the sodalite family, with the formula Na7Ca(Al6Si6O24)(SO4)(S3) ·H2O . Most lapis lazuli also contains (white), and (metallic yellow). Some samples of lapis lazuli contain , , , , , , , and sulfur-rich löllingite geyerite.

Lapis lazuli usually occurs in crystalline as a result of contact metamorphism.


Color
The intense blue color is due to the presence of the () in the crystal. The presence of disulfur () and tetrasulfur () radicals can shift the color towards yellow or red, respectively. These radical anions substitute for the chloride anions within the structure. The radical anion exhibits a visible absorption band in the range 595–620 nm with high molar absorptivity, leading to its bright blue color.


Sources
Lapis lazuli is found in limestone in the valley of province in north-eastern Afghanistan, where the mine deposits have been worked for more than 6,000 years. Afghanistan was the source of lapis for the ancient Persian, Egyptian and Mesopotamian civilizations, as well as the later Greeks and Romans. Ancient Egyptians obtained the material through trade with Mesopotamians, as part of Egypt–Mesopotamia relations and from ancient . During the height of the Indus Valley civilisation, approximately 2000 BC, the Harappan colony, now known as , was established near the lapis mines.

In addition to the Afghan deposits, lapis is also extracted in the (near Ovalle, ); and to the west of in Siberia, Russia, at the Tultui lazurite deposit. It is mined in smaller amounts in , Argentina, , , Pakistan, Canada, Italy, India, and in the United States in and .


Uses and substitutes
Lapis takes an excellent polish and can be made into jewellery, carvings, boxes, , ornaments, small statues, and vases. Interior items and finishing of buildings can be also made with lapis. During the , lapis was ground and processed to make the for use in and . Its usage as a pigment in oil paint largely ended during the early 19th century, when a chemically identical synthetic variety became available.

Lapis lazuli is commercially synthesized or simulated by the Gillson process, which is used to make artificial and .Read, Peter (2005). Gemmology , Elsevier, p. 185. . or , or dyed or , can be substituted for lapis. Lapis lazuli , Gemstone Buzz.

it was the most expensive pigment available (gold being second) and was often reserved for depicting the robes of or the ]]


History and art

In the ancient world
Lapis lazuli has been mined in Afghanistan and exported to the Mediterranean world and South Asia since the age,
(1999). 9781575060422, Eisenbrauns. .
along the ancient trade route between Afghanistan and the dating to the 7th millennium BC. Quantities of these beads have also been found at 4th millennium BC settlements in Northern , and at the site of in southeast Iran (3rd millennium BC). A dagger with a lapis handle, a bowl inlaid with lapis, amulets, beads, and inlays representing eyebrows and beards, were found in the Royal Tombs of the Sumerian city-state of Ur from the 3rd millennium BC.

Lapis was also used in ancient Persia, Mesopotamia by the , , and for and jewelry. It is mentioned several times in the Mesopotamian poem, the Epic of Gilgamesh (17th–18th century BC), one of the oldest known works of literature. The Statue of Ebih-Il, a 3rd millennium BC statue found in the ancient city-state of Mari in modern-day , now in the , uses lapis lazuli inlays for the irises of the eyes.

In ancient Egypt, lapis lazuli was a favorite stone for amulets and ornaments such as scarabs. Lapis jewellery has been found at excavations of the Predynastic Egyptian site (3300–3100 BC). At , the relief carvings of (1479–1429 BC) show fragments and barrel-shaped pieces of lapis lazuli being delivered to him as tribute. Powdered lapis was used as eyeshadow by .[3] Moment of Science site, Indiana Public Media

Jewelry made of lapis lazuli has also been found at attesting to relations between the Myceneans and the developed civilizations of Egypt and the East.Alcestis Papademetriou, Mycenae, John S. Latsis Public Benefit Foundation, 2015, p. 32.

Pliny the Elder wrote that lapis lazuli is "opaque and sprinkled with specks of gold". Because the stone combines the blue of the heavens and golden glitter of the sun, it was emblematic of success in the old Jewish tradition. In the early Christian tradition lapis lazuli was regarded as the stone of Virgin Mary.

In late classical times and as late as the Middle Ages, lapis lazuli was often called ( sapphirus in Latin, sappir in Hebrew), though it had little to do with the stone today known as the blue variety sapphire. In his book on stones, the Greek scientist described "the sapphirus, which is speckled with gold," a description which matches lapis lazuli.Theophrastus, On Stones (De Lapidibus) – IV-23, translated by D.E. Eichholtz, Oxford University Press, 1965.

There are many references to "sapphire" in the , but most scholars agree that, since sapphire was not known before the Roman Empire, they most likely are references to lapis lazuli. For instance, Exodus 24:10: "And they saw the God of Israel, and there was under his feet as it were a paved work of a sapphire stone..." (KJV). The words used in the Latin Vulgate Bible in this citation are "quasi opus lapidis sapphirini", the terms for lapis lazuli.Pearlie Braswell-Tripp (2013), Real Diamonds and Precious Stones of the Bible Modern translations of the Bible, such as the New Living Translation Second Edition,"In His Image Devotional Bible" refer to lapis lazuli in most instances instead of sapphire.


Vermeer
used lapis lazuli paint in the Girl with a Pearl Earring painting.


Yeats
The poet, William Butler Yeats, describes a figurine of sculpted lapis lazuli in a poem entitled "Lapis Lazuli". The sculpture of three men from China, a bird, and a musical instrument serves in the poem as a reminder of "gaiety" in the face of tragedy.

== Gallery ==

, , 889-853 B.C.]]
bald clean-shaven male worshipper head, 2600–2500 BC; , shell, lapis lazuli and ; from (); Museum of the Institute for the Study of Ancient Cultures (Chicago)]]
scarab finger ring; 1850–1750 BC; lapis lazuli scarab set in gold plate and on a gold wire ring lapis-lazuli; diameter: , the scarab: ; Metropolitan Museum of Art]]
mountains. National Museum of Natural History (Washington, D.C.)]]


See also

Bibliography
  • Bakhtiar, Lailee McNair, Afghanistan's Blue Treasure Lapis Lazuli, Front Porch Publishing, 2011,
  • Bariand, Pierre, "Lapis Lazuli", Mineral Digest, Vol 4 Winter 1972.
  • Herrmann, Georgina, "Lapis Lazuli: The Early Phases of Its Trade", Oxford University Dissertation, 1966.
  • Korzhinskij, D. S., "Gisements bimetasomatiques de philogophite et de lazurite de l'Archen du pribajkale", Traduction par Mr. Jean Sagarzky-B.R.G.M., 1944.
  • Lapparent A. F., Bariand, P. et Blaise, J., "Une visite au gisement de lapis lazuli de Sar-e-Sang du Hindu Kouch, Afghanistan," C.R. Somm.S.G.P.p. 30, 1964.
  • .
  • Wise, Richard W., Secrets of the Gem Trade: The Connoisseur's Guide to Precious Gemstones, 2016
  • Wyart J. Bariand P, Filippi J., "Le Lapis Lazuli de Sar-e-SAng", Revue de Geographie Physique et de Geologie Dynamique (2) Vol. XIV Pasc. 4 pp. 443–448, Paris, 1972.


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