An Egyptian carved and glazed steatite scarab amulet.
Steatite (ste-a-tite), also known as potstone and lapis ollaris, is a type of soapstone which is almost purely talc. It is also a type of ceramic material made from soapstone with minor additives and heated to vitrify (to change or make into glass or a glassy substance, especially through heat fusion). It is often used as an insulator or housing for electrical components, due to its durability and electrical characteristics and since it can be pressed into complex shapes before firing. It has been produced for thousands of years; e.g., for beads and seals in ancient civilisations. Image File history File links Scarab550bc. ... Image File history File links Scarab550bc. ... A scarab or scarab beetle may refer to: A beetle which belong to the family Scarabaeidae, or A dung beetle, especially the Scarabaeus sacer worshipped by the ancient Egyptians (an amulet made by that people in the shape of the species is also called a scarab). ... The lid of a soapstone box to show the characteristic look of the stone. ... Talc block Talcum Powder Talc is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. ... Fixed Partial Denture, or Bridge The word ceramic is derived from the Greek word κεÏαμικος (keramikos, having to do with pottery). The term covers inorganic non-metallic materials whose formation is due to the action of heat. ... The lid of a soapstone box to show the characteristic look of the stone. ... A vitrification experiment for the study of nuclear waste disposal at Pacific Northwest National Labs. ... Glass can be made transparent and flat, or into other shapes and colours as shown in this ball from the Verrerie of Brehat in Brittany. ... // Definition An Insulator is a material or object which resists the flow of electric charge. ...
Steatite is a ceramic material based on natural raw materials and consists mainly of soapstone (Mg(Si4O10)(OH)2), a natural magnesium silicate, with the addition of clay and feldspar or barium carbonate.
Special steatite is defined in international standards as steatite with a low loss factor, and is not only used in low-loss high-frequency parts, but because of its excellent workability it is also used for the manufacture of components with thin, constant thickness.
Special steatite possesses excellent mechanical and dielectric properties, and has been used for more than 90 years in various applications in electrical engineering, for electronic parts and in heat engineering.
Steatite, soapstone, or talc schist is a metamorphic rock composed primarily of the mineraltalc, in varying degrees of purity.
Hesuggested the presence of a steatite industry as one of the traits that distinguished the late prehistoric Cuyamaca (i.e., Kumeyaay) complex from the San Luis Rey (i.e., Luiseño) complex.
Studying two major steatite sources in Los Angeles County, Jane Rosenthal and Stephen L. Williams (1992) suggested that the materials could be distinguished macroscopically, on the basis of their mineralogy and texture.
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