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Emery, or corundite, is a dark granular rock used to make an abrasive powder. The rock largely consists of corundum (aluminium oxide), mixed with other minerals. Industrial emery may contain a variety of other minerals and synthetic compounds. Crushed or naturally eroded emery (known as black sand) is used as an abrasive. Turkey and Greece are ...
Emery Oleochemicals is a global oleochemical company. Emery operates production plants in the United States and Germany. Its products serve a wide range of industries, including agriculture, heavy industry and consumer products. The company is a 50:50 joint venture between PTT Global Chemical of Thailand and Sime Darby Plantation of Malaysia.
A piece of lead may be used as the lap, charged with emery, and used to cut a piece of hardened steel. The small plate shown in the first picture is a hand lapping plate. That particular plate is made of cast iron. In use, a slurry of emery powder would be spread on the plate and the workpiece simply rubbed against the plate, usually in a ...
Emery (band), a post-hardcore band from Rock Hill, South Carolina; Emery (name), people with the given or surname; Emery (rock), dark granular rock used to make an abrasive powder Emery board, a type of nail file coated with emery Emery ball, the use of an emery board to alter a sports ball; Emery cloth, an abrasive cloth coated in emery particles
Emery cloth is a type of coated abrasive that has emery glued to a cloth backing. It is used for hand metalworking. It may be sold in sheets or in narrow rolls, typically 25 or 50 mm wide, often described as "emery tape". The cloth backing makes emery cloth stronger in tension than paper, but still allows a sheet to be conveniently torn to size.
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Typically, the pincushion was filled with cotton, wool, horsehair, or sawdust, though some were filled with emery powder, an abrasive to clean and sharpen the pins. [3] During the 18th century, weighted pincushions became popular among seamstresses.
Other early sources, however, describe it as a green stone. This is supported by contemporary scholars who believe that the Shamir was emery, a blue-green stone mined as an abrasive powder for thousands of years. The word emery comes from Koinē Greek: σμύρις, romanized: smúris, which likely shares the same root as the Semitic shamir. [5]