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Bentonite production (tonnes) per country in 2006 Country (or area) Production World 14,600,000 United States 4,620,000 China * 3,200,000 Greece 1,100,000 India *
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.
The volcanic eruption that produced the Deicke K-bentonite bed which has been dated to 457.1 ±1.0, which was calculated using a concordant uranium-lead dating zircon fraction. [2] The Deicke and Millbrig eruptions have a minimal estimation of 600,000 km 2 (230,000 sq mi) covered and at least 1,122 km 3 (269 cu mi) of pre-compaction bentonite ...
For instance, North America has over 3 trillion barrels of shale oil reserves, [citation needed] and the majority of oil produced in the US is from shale, leading to the paradoxical data below that the US will finish all its oil at 2024 production levels in 10 years.)
Rank Country/Region 2012 salt production (metric tonnes) % of world production 1 China 62,158,000: 22.48 % : 2 United States 40,200,000: 14.54 % : 3 India 24,500,000: ...
In some localities fuller's earth refers to calcium bentonite, which is altered volcanic ash composed mostly of montmorillonite. [2] [7] In 2005, the United States was the largest producer of fuller's earth with an almost 70% world share followed at a distance by Japan and Mexico.
Ayilo, also known as ayilor, hyile, [1] and ferinkasa, is a Ghanaian term for bentonite clay. [2] [3] It is a baked solid white clay usually taken by pregnant women. [4] [5] They are usually baked into egg-shaped balls. [6] Ewes call it agatawoe/agatawe, Gas called it ayilo, English call it kaolin and the Akans call it shirew/shile.
Much North Dakota pottery was made from a mix of Hettinger, Mandan, Red Ross, and Beulah clay. Bentonite clays, which fired to a rich burnt sienna color, were used primarily for pottery with Indian motifs. An advantage of bentonite was that it could have glazes applied to green ware and be finished in one firing." (UND Pottery by Bob Barr)