Kenyaite is a mineral and is a peculiar sodium silicate having a layered structure. [1] It has a chemical formula of Na2Si22O41(OH)8 • 6H2O, [2] [3] which means it is made up of variations of different materials including sodium, silicon, hydrogen, and oxygen. [4] The chemical composition of kenyaite is subject to change: when the interlayer of water has different variations; it undergoes different physical conditions; by partial to full exchange of the sodium ions by protons when kenyaite comes into contact with water. This is typical for intracrystalline reactive materials. [5]
Name
The name kenyaite derives from Kenya as this is the location where it was first discovered. [1]
Physical properties
Kenyaite is white in colour and can range from being transparent to translucent. [3] It has a hardness of roughly 4 on Mohs scale of mineral hardness. [2] Kenyaite has a white streak and a density of 3.18. This mineral has a molecular mass of 1,563.99 gm/mol. [4] The mineral habits within kenyaite can be described as concretionary and nodular. [4] These nodules range in size and shape. [2]
Reactions
Kenyaite has been shown to form from the leaching of magadiite, and also from evaporating saline brines in playa evaporite alkaline lake deposits. [4] It can be transformed into quartz when kenyaite decomposes. [5]
Distribution of Deposits
Kenyaite is found in different parts of the globe including, near Trinity Lake, California, Kafra, Niger, and Lake Magadi in Kenya. [3]
References
- ^ a b McAtee, J.L; House, R.; Eugster, H.P (1968). "Magadiite from Trinity County, California" (PDF). The American Mineralogist. 53: 2061–2069.
- ^ a b c Shtenberg, M.V.; Popov, V.A.; Lebedeva, S.M.; Zainullina, R.T.; Rassomakhin, M.A. (24 April 2019). "Vibrational Spectroscopy of Kenyaite and Magadiite in the Southern Urals". Minerals: Structure, Properties, Methods of Investigation. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham: 237–243. doi: 10.1007/978-3-030-00925-0_35. ISBN 978-3-030-00924-3. S2CID 198388894.
- ^ a b c Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (1995). "Kenyaite" (PDF). Handbook of Mineralogy. Mineral Data Publishing.
- ^ a b c d Barthelmy, Dave. "Kenyaite Mineral Data". Mineralogy Database. Retrieved 22 November 2021.
- ^ a b Beneke, Klaus; Lagaly, Gerhard (1983). "Kenyaite--synthesis and properties" (PDF). American Mineralogist. 68: 818–826.
Kenyaite is a mineral and is a peculiar sodium silicate having a layered structure. [1] It has a chemical formula of Na2Si22O41(OH)8 • 6H2O, [2] [3] which means it is made up of variations of different materials including sodium, silicon, hydrogen, and oxygen. [4] The chemical composition of kenyaite is subject to change: when the interlayer of water has different variations; it undergoes different physical conditions; by partial to full exchange of the sodium ions by protons when kenyaite comes into contact with water. This is typical for intracrystalline reactive materials. [5]
Name
The name kenyaite derives from Kenya as this is the location where it was first discovered. [1]
Physical properties
Kenyaite is white in colour and can range from being transparent to translucent. [3] It has a hardness of roughly 4 on Mohs scale of mineral hardness. [2] Kenyaite has a white streak and a density of 3.18. This mineral has a molecular mass of 1,563.99 gm/mol. [4] The mineral habits within kenyaite can be described as concretionary and nodular. [4] These nodules range in size and shape. [2]
Reactions
Kenyaite has been shown to form from the leaching of magadiite, and also from evaporating saline brines in playa evaporite alkaline lake deposits. [4] It can be transformed into quartz when kenyaite decomposes. [5]
Distribution of Deposits
Kenyaite is found in different parts of the globe including, near Trinity Lake, California, Kafra, Niger, and Lake Magadi in Kenya. [3]
References
- ^ a b McAtee, J.L; House, R.; Eugster, H.P (1968). "Magadiite from Trinity County, California" (PDF). The American Mineralogist. 53: 2061–2069.
- ^ a b c Shtenberg, M.V.; Popov, V.A.; Lebedeva, S.M.; Zainullina, R.T.; Rassomakhin, M.A. (24 April 2019). "Vibrational Spectroscopy of Kenyaite and Magadiite in the Southern Urals". Minerals: Structure, Properties, Methods of Investigation. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham: 237–243. doi: 10.1007/978-3-030-00925-0_35. ISBN 978-3-030-00924-3. S2CID 198388894.
- ^ a b c Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (1995). "Kenyaite" (PDF). Handbook of Mineralogy. Mineral Data Publishing.
- ^ a b c d Barthelmy, Dave. "Kenyaite Mineral Data". Mineralogy Database. Retrieved 22 November 2021.
- ^ a b Beneke, Klaus; Lagaly, Gerhard (1983). "Kenyaite--synthesis and properties" (PDF). American Mineralogist. 68: 818–826.