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Lapis-lazuli
Lapis lazuli (; ), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color. As early as the 7th millennium BC, lapis lazuli was mined in the Sar-i Sang mines,David Bomford and Ashok Roy, ''A Closer Look- Colour'' (2009), National Gallery Company, London, () in Shortugai, and in other mines in Badakhshan province in northeast Afghanistan. Lapis lazuli artifacts, dated to 7570 BC, have been found at Bhirrana, which is the oldest site of Indus Valley civilisation. Lapis was highly valued by the Indus Valley Civilisation (7570–1900 BC). Lapis beads have been found at Neolithic burials in Mehrgarh, the Caucasus, and as far away as Mauritania. It was used in the funeral mask of Tutankhamun (1341–1323 BC). By the end of the Middle Ages, lapis lazuli began to be exported to Europe, where it was ground into powder and made into ultramarine, the finest and most expensive of all blue pigments. Ultr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultramarine
Ultramarine is a deep blue color pigment which was originally made by grinding lapis lazuli into a powder. The name comes from the Latin ''ultramarinus'', literally 'beyond the sea', because the pigment was imported into Europe from mines in Afghanistan by Italian traders during the 14th and 15th centuries. Ultramarine was the finest and most expensive blue used by Renaissance painters. It was often used for the robes of the Virgin Mary and symbolized holiness and humility. It remained an extremely expensive pigment until a synthetic ultramarine was invented in 1826. Structure The pigment consists primarily of a zeolite-based mineral containing small amounts of polysulfides. It occurs in nature as a proximate component of lapis lazuli containing a blue cubic mineral called lazurite. In the Colour Index International, the pigment of ultramarine is identified as P. Blue 29 77007. The major component of lazurite is a complex sulfur-containing sodium-silicate (Na8–10Al6Si6O24 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lazurite
Lazurite is a tectosilicate mineral with sulfate, sulfur and chloride with formula . It is a feldspathoid and a member of the sodalite group. Lazurite crystallizes in the isometric system although well‐formed crystals are rare. It is usually massive and forms the bulk of the gemstone lapis lazuli. Lazurite is a deep‐blue to greenish‐blue. The colour is due to the presence of anions. It has a Mohs hardness of 5.0 to 5.5 and a specific gravity of 2.4. It is translucent with a refractive index of 1.50. It is fusible at 3.5 on Wolfgang Franz von Kobell's fusibility scale, and soluble in HCl. It commonly contains or is associated with grains of pyrite. Lazurite is a product of contact metamorphism of limestone and is typically associated with calcite, pyrite, diopside, humite, forsterite, hauyne and muscovite. Other blue minerals, such as the carbonate azurite and the phosphate lazulite, may be confused with lazurite, but are easily distinguished with careful examination. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrite
The mineral pyrite (), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Iron, FeSulfur, S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic Luster (mineralogy), luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of ''fool's gold''. The color has also led to the nicknames ''brass'', ''brazzle'', and ''Brazil'', primarily used to refer to pyrite found in coal. The name ''pyrite'' is derived from the Greek language, Greek (), 'stone or mineral which strikes fire', in turn from (), 'fire'. In ancient Roman times, this name was applied to several types of stone that would create sparks when struck against steel; Pliny the Elder described one of them as being brassy, almost certainly a reference to what we now call pyrite. By Georgius Agricola's time, , the term had become a generic term for all of the pyrite group, sulfide minerals. Pyrite is usua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tutankhamun's Mask
The mask of Tutankhamun is a gold mask of the 18th-dynasty ancient Egyptian pharaoh Tutankhamun (reigned 1334–1325 BC). It was discovered by Howard Carter in 1925 in tomb KV62 in the Valley of the Kings, and is now housed in the Egyptian Museum in Cairo. The death mask is one of the best-known works of art in the world and a prominent symbol of ancient Egypt. Bearing the likeness of Osiris, Egyptian god of the afterlife, it is tall, weighs over or 321.5 troy ounces, and is decorated with semi-precious stones. An ancient spell from the ''Book of the Dead'' is inscribed in hieroglyphs on the mask's shoulders. The mask had to be restored in 2015 after its plaited beard fell off and was hastily glued back on by museum workers. According to the Egyptologist Nicholas Reeves, the mask is "not only the quintessential image from Tutankhamun's tomb, it is perhaps the best-known object from ancient Egypt itself." Since 2001, some Egyptologists have suggested that it may originall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scribes
A scribe is a person who serves as a professional copyist, especially one who made copies of manuscripts before the invention of automatic printing. The profession of the scribe, previously widespread across cultures, lost most of its prominence and status with the advent of the printing press. The work of scribes can involve copying manuscripts and other texts as well as secretarial and administrative duties such as the taking of dictation and keeping of business, judicial, and historical records for kings, nobles, temples, and cities. The profession has developed into public servants, journalists, accountants, bookkeepers, typists, and lawyers. In societies with low literacy rates, street-corner letter-writers (and readers) may still be found providing scribe service. Ancient Egypt One of the most important professionals in ancient Egypt was a person educated in the arts of writing (both hieroglyphics and hieratic scripts, as well as the demotic script from the second ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuns
A nun is a woman who vows to dedicate her life to religious service, typically living under vows of poverty, chastity, and obedience in the enclosure of a monastery or convent.''The Oxford English Dictionary'', vol. X, page 599. The term is often used interchangeably with religious sisters who do take simple vows but live an active vocation of prayer and charitable work. In Christianity, nuns are found in the Roman Catholic, Oriental Orthodox, Eastern Orthodox, Lutheran, and Anglican traditions, as well as other Christian denominations. In the Buddhist tradition, female monastics are known as Bhikkhuni, and take several additional vows compared to male monastics (bhikkhus). Nuns are most common in Mahayana Buddhism, but have more recently become more prevalent in other traditions. Christianity Catholicism In the Catholic tradition, there are many religious institutes of nuns and sisters (the female equivalent of male monks or friars), each with its own charism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dental Tartar
In dentistry, calculus or tartar is a form of hardened dental plaque. It is caused by precipitation of minerals from saliva and gingival crevicular fluid (GCF) in plaque on the teeth. This process of precipitation kills the bacterial cells within dental plaque, but the rough and hardened surface that is formed provides an ideal surface for further plaque formation. This leads to calculus buildup, which compromises the health of the gingiva (gums). Calculus can form both along the gumline, where it is referred to as supragingival ("above the gum"), and within the narrow sulcus that exists between the teeth and the gingiva, where it is referred to as subgingival ("below the gum"). Calculus formation is associated with a number of clinical manifestations, including bad breath, receding gums and chronically inflamed gingiva. Brushing and flossing can remove plaque from which calculus forms; however, once formed, calculus is too hard (firmly attached) to be removed with a toothbru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virgin Mary
Mary; arc, ܡܪܝܡ, translit=Mariam; ar, مريم, translit=Maryam; grc, Μαρία, translit=María; la, Maria; cop, Ⲙⲁⲣⲓⲁ, translit=Maria was a first-century Jewish woman of Nazareth, the wife of Joseph and the mother of Jesus. She is a central figure of Christianity, venerated under various titles such as virgin or queen, many of them mentioned in the Litany of Loreto. The Eastern and Oriental Orthodox, Church of the East, Catholic, Anglican, and Lutheran churches believe that Mary, as mother of Jesus, is the Mother of God. Other Protestant views on Mary vary, with some holding her to have considerably lesser status. The New Testament of the Bible provides the earliest documented references to Mary by name, mainly in the canonical Gospels. She is described as a young virgin who was chosen by God to conceive Jesus through the Holy Spirit. After giving birth to Jesus in Bethlehem, she raised him in the city of Nazareth in Galilee, and was in Jerusal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermeer
Johannes Vermeer ( , , see below; also known as Jan Vermeer; October 1632 – 15 December 1675) was a Dutch Baroque Period painter who specialized in domestic interior scenes of middle-class life. During his lifetime, he was a moderately successful provincial genre painter, recognized in Delft and The Hague. Nonetheless, he produced relatively few paintings and evidently was not wealthy, leaving his wife and children in debt at his death. Vermeer worked slowly and with great care, and frequently used very expensive pigments. He is particularly renowned for his masterly treatment and use of light in his work. "Almost all his paintings", Hans Koningsberger wrote, "are apparently set in two smallish rooms in his house in Delft; they show the same furniture and decorations in various arrangements and they often portray the same people, mostly women." His modest celebrity gave way to obscurity after his death. He was barely mentioned in Arnold Houbraken's major source book on 17t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titian
Tiziano Vecelli or Vecellio (; 27 August 1576), known in English as Titian ( ), was an Italians, Italian (Republic of Venice, Venetian) painter of the Renaissance, considered the most important member of the 16th-century Venetian school (art), Venetian school. He was born in Pieve di Cadore, near Belluno. During his lifetime he was often called ''da Cadore'', 'from Cadore', taken from his native region. Recognized by his contemporaries as "The Sun Amidst Small Stars" (recalling the final line of Dante Alighieri, Dante's ''Paradiso (Dante), Paradiso''), Titian was one of the most versatile of Italian painters, equally adept with portraits, landscape backgrounds, and mythological and religious subjects. His painting methods, particularly in the application and use of colour, exercised a profound influence not only on painters of the late Italian Renaissance, but on future generations of Art of Europe, Western artists. His career was successful from the start, and he became sought ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perugino
Pietro Perugino (, ; – 1523), born Pietro Vannucci, was an Italian Renaissance painter of the Umbrian school, who developed some of the qualities that found classic expression in the High Renaissance. Raphael was his most famous pupil. Early years He was born Pietro Vannucci in Città della Pieve, Umbria, the son of Cristoforo Maria Vannucci. His nickname characterizes him as from Perugia, the chief city of Umbria. Scholars continue to dispute the socioeconomic status of the Vannucci family. While certain academics maintain that Vannucci worked his way out of poverty, others argue that his family was among the wealthiest in the town. His exact date of birth is not known, but based on his age at death that was mentioned by Vasari and Giovanni Santi, it is believed that he was born between 1446 and 1452. Pietro most likely began studying painting in local workshops in Perugia such as those of Bartolomeo Caporali or Fiorenzo di Lorenzo. The date of the first Florentine sojou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masaccio
Masaccio (, , ; December 21, 1401 – summer 1428), born Tommaso di Ser Giovanni di Simone, was a Florentine artist who is regarded as the first great Italian painter of the Quattrocento period of the Italian Renaissance. According to Vasari, Masaccio was the best painter of his generation because of his skill at imitating nature, recreating lifelike figures and movements as well as a convincing sense of three-dimensionality. He employed nudes and foreshortenings in his figures. This had seldom been done before him.Vasari, Giorgio, "The Lives of the Artists" Translated by Julia Conaway Bondanella and Peter Bondanella, Oxford World Classics. The name Masaccio is a humorous version of Maso (short for Tommaso), meaning "clumsy" or "messy" Tom. The name may have been created to distinguish him from his principal collaborator, also called Maso, who came to be known as Masolino ("little/delicate Tom"). Despite his brief career, he had a profound influence on other artists and is co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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