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Stevensite
Stevensite is white clay mineral. The mineral is a member of smectite. The mineral is named after Edwin Augustus Stevens Edwin Augustus Stevens (July 28, 1795 – August 7, 1868) was an American engineer, inventor, and entrepreneur who left a bequest that was used to establish the Stevens Institute of Technology. Life Stevens was born at Castle Point, Hobo .... Stevensite can be found Dean Quarry. References {{Mineral-stub Smectite group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smectite
A smectite (from ancient Greek ''σμηκτός'' smektos 'lubricated'; ''σμηκτρίς'' smektris 'walker's earth', 'fuller's earth'; rubbing earth; earth that has the property of cleaning) is a mineral mixtures of various swelling sheet silicates (phyllosilicates), which have a three-layer 2:1 (TOT) structure and belong to the clay minerals. Smectites mainly consist of montmorillonite, but can often contain secondary minerals such as quartz and calcite. Terminology In clay mineralogy, smectite is synonym of montmorillonite (also the name of a pure clay mineral phase) to indicate a class of swelling clays. The term smectite is commonly used in Europe and in the UK while the term montmorillonite is preferred in North America, but both terms are equivalent and can be used interchangeably. For industrial and commercial applications, the term bentonite is mostly used in place of smectite or montmorillonite. Mineralogical structure The 2:1 layer (TOT) structure consists of tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edwin Augustus Stevens
Edwin Augustus Stevens (July 28, 1795 – August 7, 1868) was an American engineer, inventor, and entrepreneur who left a bequest that was used to establish the Stevens Institute of Technology. Life Stevens was born at Castle Point, Hoboken, New Jersey, the son of Colonel John Stevens III (1749–1838) and his wife Rachel ( née Cox) Stevens (1761–1839). He was the sixth of eleven children, and among his older brothers were John Cox Stevens and Robert Livingston Stevens. Career At an early age Stevens was entrusted by his father with the family business affairs, and in 1821 at the age of 26 he assumed full responsibility for the Stevens estate in Hoboken and other properties. Also in 1821, he developed the "Jeef Beef," a cast-iron plow with a curved moldboard and replaceable heel piece. The plow was popular among New Jersey farmers. He went on to design many other technological innovations, such as the “Beef Clothes” for New York City; the "closed fireroom” syst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
