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|Name:||Named for Japanese mineralogist, Professor Nobuo Katayama|
Described as the hydroxyl analogue of baratovite, which had originally been described as fluor-dominant. Some mineralogists now claim that baratovite is also hydroxyl- rather than fluor-dominant, and that baratovite and katayamalite are therefore the same species, with the name baratovite having priority. At present this situation has not been clarified and katayamalite remains an IMA-approved species.
Classification of Katayamalite
|IMA status:||Approved 1982|
|Nickel-Strunz 10th (pending) edition ID:||9.CJ.25|
9 : SILICATES (Germanates)
C : Cyclosilicates
J : [Si6O18]12- 6-membered single rings (sechser-Einfachringe), without insular complex anions
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Type Occurrence of Katayamalite
|Type Locality:||Iwagi Island, Inland Sea (Setonaikai), Ehime Prefecture, Japan|
|Geological Setting of type material:||aegirine syenite|
|Associated Minerals at type locality:|
Chemical Properties of Katayamalite
|Essential elements:||Ca, H, K, Li, O, Si, Ti|
|All elements listed in formula:||Ca, H, K, Li, O, Si, Ti|
Relationship of Katayamalite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Katayamalite
|Fluorescence in UV light:||brilliant blue-white under SW|
|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 Katayamalite
Murakami, N., et al. (1983): Mineralogical Journal, 11, 261-268.
Am. Min. 69, 811-812 (1984).
Toshio Kato and Nobuhide Murakami (1985) The crystal structure of katayamalite. Mineralogical Journal, 12, #5, 206-217.
Internet Links for Katayamalite
Localities for Katayamalite
(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.
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Locality Updated: Spray mine, Zeehan, Zeehan district, Tasmania, AustraliaFrom Rod Martin, 19th May 2013 09:41:10