Lapis lazuli
Metamorphic rock | |
Composition | |
---|---|
Primary | Lazurite |
Secondary | A mixture of other minerals, often including pyrite |
Lapis lazuli (
By the end of the
Major sources
Mines in northeast Afghanistan continue to be a major source of lapis lazuli. Important amounts are also produced from mines west of
Etymology
Lapis is the
As the sun struck the dome of lazuli,
A golden curtain was drawn, most truly.
Historically, it was mined in the Badakhshan region of upper Afghanistan. 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 as well as English azure.[11][12]
Science and uses
Composition
The most important mineral component of lapis lazuli is
Lapis lazuli usually occurs in crystalline
Color
The intense blue color is due to the presence of the trisulfur radical anion (S•−
3) in the crystal.[15] The presence of disulfur (S•−
2) and tetrasulfur (S•−
4) radicals can shift the color towards yellow or red, respectively.[16] These radical anions substitute for the chloride anions within the sodalite structure.[17] The S•−
3 radical anion exhibits a visible absorption band in the range 595–620 nm with high molar absorptivity, leading to its bright blue color.[18]
Sources
Lapis lazuli is found in limestone in the
In addition to the Afghan deposits, lapis is also extracted in the
Uses and substitutes
Lapis takes an excellent polish and can be made into jewellery,carvings, boxes, mosaics, ornaments, small statues, and vases. Interior items and finishing buildings can be also made with lapis. Two of the columns framing the iconostasis in Saint Isaac's Cathedral in Saint Petersburg are built with lapis. During the Renaissance, lapis was ground and processed to make the pigment ultramarine for use in frescoes and oil painting. 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 ultramarine and hydrous zinc phosphates.[20] Spinel or sodalite, or dyed jasper or howlite, can be substituted for lapis.[21]
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Crystals of lazurite (the main mineral in lapis lazuli) from the Sar-i Sang Mining District in Afghanistan
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A polished block of lapis lazuli
-
Natural ultramarine pigment made from ground lapis lazuli. During theVirgin Mary
-
19th-century lapis lazuli and diamond pendant
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
Lapis was also used in ancient Persia, Mesopotamia by the
In ancient Egypt, lapis lazuli was a favorite stone for amulets and ornaments such as
Jewelry made of lapis lazuli has also been found at Mycenae attesting to relations between the Myceneans and the developed civilizations of Egypt and the East.[26]
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 sapphire (sapphirus in Latin, sappir in Hebrew),[27] though it had little to do with the stone today known as the blue corundum variety sapphire. In his book on stones, the Greek scientist Theophrastus described "the sapphirus, which is speckled with gold," a description which matches lapis lazuli.[28]
There are many references to "sapphire" in the Old Testament, 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.[29] Modern translations of the Bible, such as the New Living Translation Second Edition,[30] refer to lapis lazuli in most instances instead of sapphire.
Vermeer
Johannes Vermeer used lapis lazuli paint, in the Girl with a Pearl Earring painting.[31][32]
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.[33]
Gallery
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A bovine with eyes decorated with lapis lazuli. Fertile Crescent, Sumerian, 889-853 B.C.
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Sumerian necklace beads; 2600–2500 BC; gold and lapis lazuli; length: 54 cm; Metropolitan Museum of Art (New York City)
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Sumerian necklace; 2600–2500 BC; gold and lapis lazuli; length: 22.5 cm; from the Royal Cemetery at Ur (Iraq); Metropolitan Museum of Art
-
Ancient Egyptian scarab finger ring; 1850–1750 BC; lapis lazuli scarab set in gold plate and on a gold wire ring lapis-lazuli; diameter: 2.5 cm, the scarab: 1.8 cm; Metropolitan Museum of Art
-
Neo-Babylonian conical seal; 7th–6th century BC; lapis lazuli; height: 2.7 cm, diameter: 2.1 cm; Metropolitan Museum of Art
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Ancient Egyptian plaque with an Eye of Horus; 664–332 BC; lapis lazuli; length: 1.8 cm, width: 1.6 cm; Metropolitan Museum of Art
-
Greek or Roman ring stone; lapis lazuli; 2.1 x 1.6 x 0.3 cm; Metropolitan Museum of Art
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Roman bead ornament; gold and lapis lazuli; 3 × 1.8 × 0.5 cm; Metropolitan Museum of Art
-
20th century silver ring with polished lapis oval; 2 x 2.4 x 1 cm
-
Elephant carved from lapis lazuli. Length 7 cm.
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Large lapis lazuli specimen from Afghanistan's Hindu Kush mountains. National Museum of Natural History (Washington, D.C.)
See also
- Dvārakā–Kamboja route
- Hauyne – Silicate mineral
- Lapis armenus – Precious stone resembling lapis lazuli
- Sar-i Sang – town in Badakhshan Province, Afghanistan
- Shades of blue – Variety of the color blue
- Ultramarine – Deep blue purple color pigment which was originally made with ground lapis lazuli
References
- ^ "lapis lazuli". Oxford Advanced Learner's Dictionary. Retrieved 6 April 2024.
- ISBN 978-1-85709-442-8)
- ISBN 978-1-57506-042-2. Archivedfrom the original on 2015-10-03. Retrieved 2020-11-08.
- ^ a b "Excavation Bhirrana | ASI Nagpur". excnagasi.in. Archived from the original on 2020-08-04. Retrieved 2020-08-21.
- S2CID 4425978.
- JSTOR 43610686.
- ^ a b c Bowersox & Chamberlin 1995
- ^ Alessandro Bongioanni & Maria Croce
- ^ Zhang, Sarah (January 9, 2019). "Why a Medieval Woman Had Lapis Lazuli Hidden in Her Teeth". The Atlantic. Archived from the original on May 8, 2020. Retrieved May 9, 2020.
- ^ a b "Lapis Lazuli". www.gemstone.org. International Colored Gemstone Association. Archived from the original on 2020-03-21. Retrieved 2020-02-13.
- ^ ISBN 978-0-444-52239-9.
- ^ Weekley, Ernest (1967). "azure". An Etymological Dictionary of Modern English. New York: Dover Publications. p. 97.
- ^ "Lapis lazuli: Mineral information, data and localities". www.mindat.org. Archived from the original on 2020-01-29. Retrieved 2020-02-13.
- ^ "Lazurite: Mineral information, data and localities". www.mindat.org. Archived from the original on 2020-04-03. Retrieved 2020-02-13.
- from the original on 2017-09-22. Retrieved 2018-04-20.
- S2CID 102593589.
- from the original on 2022-06-16. Retrieved 2022-06-16.
- from the original on 2022-06-16. Retrieved 2022-06-16.
- ^ Oldershaw 2003
- ISBN 0-7506-6449-5.
- ^ Lapis lazuli Archived 2019-10-27 at the Wayback Machine, Gemstone Buzz.
- ^ ISBN 978-1-57506-042-2. Archivedfrom the original on 2015-10-03. Retrieved 2020-11-08.
- ^ Monthly, Jewellery (2015-04-02). "A complete guide to Gemstones". Jewellery & Watch Magazine | Jewellery news, jewellery fashion and trends, jewellery designer reviews, jewellery education, opinions | Wrist watch reviews. Archived from the original on 2017-08-28. Retrieved 2017-08-28.
- Musée du Louvre. Archivedfrom the original on 30 December 2012. Retrieved 10 October 2012.
- ^ [1] Archived 2013-10-04 at the Wayback Machine Moment of Science site, Indiana Public Media
- ^ Alcestis Papademetriou, Mycenae, John S. Latsis Public Benefit Foundation, 2015, p. 32.
- ^ Schumann, Walter (2006) [2002]. "Sapphire". Gemstones of the World. trans. Annette Englander & Daniel Shea (Newly revised & expanded 3rd ed.). New York: Sterling. p. 102.
In antiquity and as late as the Middle Ages, the name sapphire was understood to mean what is today described as lapis lazuli.
- ^ Theophrastus, On Stones (De Lapidibus) – IV-23, translated by D.E. Eichholtz, Oxford University Press, 1965.
- ISBN 978-1-4797-9644-1
- ISBN 978-1-4143-3763-0
- ^ "Vermeer's Palette: Natural Ultramarine". Archived from the original on 2021-11-23. Retrieved 2022-06-23.
- S2CID 211540737.
- ISSN 0011-1570.
Bibliography
- Bakhtiar, Lailee McNair, Afghanistan's Blue Treasure Lapis Lazuli, Front Porch Publishing, 2011, ISBN 978-0615573700
- Bariand, Pierre, "Lapis Lazuli", Mineral Digest, Vol 4 Winter 1972.
- Bowersox, Gary W.; Chamberlin, Bonita E. (1995). Gemstones of Afghanistan. Tucson, AZ: Geoscience Press.
- 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.
- Oldershaw, Cally (2003). Firefly Guide to Gems. Toronto: Firefly Books..
- Wise, Richard W., Secrets of the Gem Trade: The Connoisseur's Guide to Precious Gemstones, 2016 ISBN 9780972822329
- 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.
External links
- Lapis lazuli at Gemstone.org
- Documentation from online course produced by University of California at Berkeley
- Lapislazuli: Occurrence, Mining and Market Potential of a blue Mineral Pigment
- . . 1914.
- "Why a Medieval Woman Had Lapis Lazuli Hidden in Her Teeth", The Atlantic, January 2019
- Lapis Lazuli birthstone virtues and story at birthstone.guide