Carolingian artCarolingian art comes from the Frankish Empire in the period of roughly 120 years from about 780 to 900—during the reign of Charlemagne and his immediate heirs—popularly known as the Carolingian Renaissance. The art was produced by and for the court circle and a group of important monasteries under Imperial patronage; survivals from outside this charmed circle show a considerable drop in quality of workmanship and sophistication of design.
OnyxOnyx primarily refers to the parallel-banded variety of chalcedony, an oxide mineral. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands; agate has curved bands while onyx has parallel bands. The colors of its bands range from black to almost every color. Specimens of onyx commonly contain bands of black and/or white. Onyx, as a descriptive term, has also been applied to parallel-banded varieties of alabaster, marble, calcite, obsidian, and opal, and misleadingly to materials with contorted banding, such as "cave onyx" and "Mexican onyx".
Roman artThe art of Ancient Rome, and the territories of its Republic and later Empire, includes architecture, painting, sculpture and mosaic work. Luxury objects in metal-work, gem engraving, ivory carvings, and glass are sometimes considered to be minor forms of Roman art, although they were not considered as such at the time. Sculpture was perhaps considered as the highest form of art by Romans, but figure painting was also highly regarded.
Persian artPersian art or Iranian art (Honar-è Irâni) has one of the richest art heritages in world history and has been strong in many media including architecture, painting, weaving, pottery, calligraphy, metalworking and sculpture. At different times, influences from the art of neighbouring civilizations have been very important, and latterly Persian art gave and received major influences as part of the wider styles of Islamic art.
Hellenistic artHellenistic art is the art of the Hellenistic period generally taken to begin with the death of Alexander the Great in 323 BCE and end with the conquest of the Greek world by the Romans, a process well underway by 146 BCE, when the Greek mainland was taken, and essentially ending in 30 BCE with the conquest of Ptolemaic Egypt following the Battle of Actium. A number of the best-known works of Greek sculpture belong to this period, including Laocoön and His Sons, Venus de Milo, and the Winged Victory of Samothrace.
Seal (emblem)A seal is a device for making an impression in wax, clay, paper, or some other medium, including an embossment on paper, and is also the impression thus made. The original purpose was to authenticate a document, or to prevent interference with a package or envelope by applying a seal which had to be broken to open the container (hence the modern English verb "to seal", which implies secure closing without an actual wax seal). The seal-making device is also referred to as the seal matrix or die; the imprint it creates as the seal impression (or, more rarely, the sealing).
JadeJade is a mineral used as jewellery or for ornaments. It is typically green, although may be yellow or white. Jade can refer to either of two different silicate minerals: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminium in the pyroxene group of minerals). Jade is well known for its ornamental use in East Asian, South Asian, and Southeast Asian art. It is commonly used in Latin America, such as Mexico and Guatemala.
Ancient Greek artAncient Greek art stands out among that of other ancient cultures for its development of naturalistic but idealized depictions of the human body, in which largely nude male figures were generally the focus of innovation. The rate of stylistic development between about 750 and 300 BC was remarkable by ancient standards, and in surviving works is best seen in sculpture. There were important innovations in painting, which have to be essentially reconstructed due to the lack of original survivals of quality, other than the distinct field of painted pottery.
JasperJasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases, is an opaque, impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to iron(III) inclusions. Jasper breaks with a smooth surface and is used for ornamentation or as a gemstone. It can be highly polished and is used for items such as vases, seals, and snuff boxes. The specific gravity of jasper is typically 2.5 to 2.9.
