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Cut glass or cut-glass is a technique and a style of decorating glass. For some time the style has often been produced by other techniques such as the use of moulding , but the original technique of cutting glass on an abrasive wheel is still used in luxury products.
This vibrant cut crystal stemware is increasingly on the radar of collectors, and standard sets of six glasses can command prices of $100 and up, while others can run $100 or more per glass.
Bohemian crystal became famous for its excellent cut and engraving. They became skilled teachers of glass-making in neighbouring and distant countries. By the middle of the 19th century, a technical glass-making school system was created that encouraged traditional and innovative techniques as well as thorough technical preparation.
Cut glass wine glass made of lead glass. Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. [1] Lead glass contains typically 18–40% (by mass) lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO. [2]
The Moche civilization (Spanish pronunciation:; alternatively, the Moche culture or the Early, Pre- or Proto-Chimú) flourished in northern Peru with its capital near present-day Moche, Trujillo, Peru [1] [2] from about 100 to 800 AD during the Regional Development Epoch. While this issue is the subject of some debate, many scholars contend ...
The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]
The Maya, Olmecs, and Aztecs have well-documented entheogenic complexes. [3] North American cultures also have a tradition of entheogens. In South America, especially in Peru, the archaeological study of cultures like Chavin, Cupisnique, Nazca [4] and Moche, [5] have demonstrated the use of entheogens through archaeobotanical, iconographic and paraphernalia.
Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem , jewel , precious stone , semiprecious stone , or simply gem ) is a piece of mineral crystal which, when cut or ...