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Georgian seed pearl gold ring. A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle) of a living shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) [3] in minute ...
The modern chrysolite is a green oblong hexagonal prism of unequal sides terminated by two triangular pyramids. Topaz, or ancient chrysolite, is an octangular prism of an orange-yellow colour; it is composed of alumina, silica, hydrofluoric acid, and iron. it is found in Ceylon, Arabia, and Egypt.
A tiara (from Latin: tiara, from Ancient Greek: τιάρα) is a jeweled head ornament. Its origins date back to ancient Iran, which was then adapted by Greco-Romans. In the late 18th century, the tiara came into fashion in Europe as a prestigious piece of jewelry to be worn by women at formal occasions. The basic shape of the modern tiara is a ...
The Rosary [1] (/ ˈ r oʊ z ər i /; Latin: rosarium, in the sense of "crown of roses" or "garland of roses"), [2] formally known as the Psalter of Jesus and Mary [3] [4] (Latin: Psalterium Jesu et Mariae), also known as the Dominican Rosary [5] [6] (as distinct from other forms of rosary such as the Franciscan Crown, Bridgettine Rosary, Rosary of the Holy Wounds, etc.), refers to a set of ...
Pentacle. A pentacle (also spelled and pronounced as pantacle in Thelema, following Aleister Crowley, though that spelling ultimately derived from Éliphas Lévi) [1] is a talisman that is used in magical evocation, and is usually made of parchment, paper, cloth, or metal (although it can be of other materials), upon which a magical design is drawn.
Mathematical notation consists of using symbols for representing operations, unspecified numbers, relations, and any other mathematical objects and assembling them into expressions and formulas. Mathematical notation is widely used in mathematics, science, and engineering for representing complex concepts and properties in a concise ...
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Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...