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Bentonite layers from an ancient deposit of weathered volcanic ash tuff in Wyoming Gray shale and bentonites (Benton Shale; Colorado Springs, Colorado). Bentonite (/ ˈ b ɛ n t ə n aɪ t / BEN-tə-nyte) [1] [2] is an absorbent swelling clay consisting mostly of montmorillonite (a type of smectite) which can either be Na-montmorillonite or Ca-montmorillonite.
Terraria has support for mods, which is facilitated by the third-party tModLoader. [12] [13] [14] It later received official support when it was released as free downloadable content alongside the "Journey's End" update on Steam in 2020. [15] Mods for Terraria vary widely in their scope, content, and purpose. Some, such as Thorium and Calamity ...
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Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, have been used for clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist: sodium bentonite and calcium bentonite.
Several different types of bentonite can be found; however, potassium bentonite is the main one associated with the Deicke and Millbrig eruptions. The Deicke and Millbrig K-bentonite layers can be found from Alabama to New York to Minnesota. These K-bentonite layers are up to a meter thick in some locations. [8] Such thickness is unique.
The mineral was first synthesized in 1973 during a study of the Ba-Mg-Ca-CO 3 system in aqueous solution. At room temperature, a solution containing proportional quantities of magnesium chloride, barium chloride, and calcium chloride was prepared, to which sodium carbonate was added.
Benitoite (/ b ə ˈ n iː t oʊ aɪ t /) is a rare blue barium titanium cyclosilicate mineral, found in hydrothermally altered serpentinite.It forms in low temperature, high pressure environments typical of subduction zones at convergent plate boundaries.
Hectorite is a rare soft, greasy, white clay mineral with a chemical formula of Na 0.3 (Mg,Li) 3 Si 4 O 10 (OH) 2. [2]Hectorite was first described in 1941 and named for an occurrence in the United States near Hector (in San Bernardino County, California, [4] 30 miles east of Barstow.)