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|Name:||For the Japanese name, Imogo, of the brownish yellow volcanic ash soil of Japan in which it occurs.|
Described in 1962, rejected by the IMA, but the name Imogolite was approved by the AIPEA Nomenclature Committee at its 1970 Tokyo meeting (Clays and Clay Minerals 19, 131 (1971).
Widespread component of volcanic-ash-derived soils, but occurs also in other environments.
The nano-sized particles have a tube-like morphology.
Related to allophane.
Classification of Imogolite
|IMA status:||Redefined Approved|
|Strunz 8th edition ID:||8/H.26-30|
|Nickel-Strunz 10th (pending) edition ID:||9.ED.20|
9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
|Dana 8th edition ID:||184.108.40.206|
71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
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Type Occurrence of Imogolite
|Type Locality:||Uemura, Kumamoto prefecture, Kyushu Region, Japan|
|Year of Discovery:||1962|
|Geological Setting of type material:||Decomposition product of volcanic ash in soils in humid environments.|
Chemical Properties of Imogolite
|Simplified for copy/paste:||Al2SiO3(OH)4|
|Essential elements:||Al, H, O, Si|
|All elements listed in formula:||Al, H, O, Si|
Relationship of Imogolite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Imogolite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Imogolite
Mineralogical Magazine (1987): 51: 327. [Redefinition]
Clays and Clay Minerals (1994): 42: 276.
Internet Links for Imogolite
Localities for Imogolite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.