Classification of Watatsumiite |
| IMA status: | Approved 2001 |
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| Strunz 8th edition ID: | 8/F.37-30
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| Nickel-Strunz 10th (pending) edition ID: | 9.EH.05
9 : SILICATES (Germanates) E : Phyllosilicates H : Transitional structures between phyllosilicate and other silicate units |
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| mindat.org URL: | http://www.mindat.org/min-11461.html Please feel free to link to this page. |
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Type Occurrence of Watatsumiite |
| Type Locality: | Tanohata Mine, Iwate Prefecture, Tohoku Region, Honshu Island, Japan |
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| General Appearance of Type Material: | Light yellowish green prismatic crystals, less than 1mm long, embedded in massive quartz. |
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| Year of Discovery: | 2000 |
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| Geological Setting of type material: | Metamorphosed sedimentary manganese ore. |
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| Associated Minerals at type locality: | |
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Physical Properties of Watatsumiite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | peridot-green, yellow-green |
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| Hardness (Mohs): | 5½ - 6 |
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| Tenacity: | Brittle |
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| Cleavage: | Poor/Indistinct on {110} |
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Crystallography of Watatsumiite |
| Crystal System: | Monoclinic |
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| Cell Parameters: | a = 16.45Å, b = 12.492Å, c = 9.995Å β = 115.32° |
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| Ratio: | a:b:c = 1.317 : 1 : 0.8 |
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| Unit Cell Volume: | V 1,856.59 ų (Calculated from Unit Cell) |
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| Morphology: | rounded prismatic embedded grains |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 9.58 | | (85) | | 4.52 | | (85) | | 3.19 | | (100) | | 2.94 | | (90) |
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| Comments: | (only the 5 strongest lines) |
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Chemical Properties of Watatsumiite |
| Formula: | |
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| All elements listed in formula: | Fe, K, Li, Mn, Na, O, Si, V |
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Relationship of Watatsumiite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Watatsumiite |
| Synonyms: | |
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| Other Languages: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Watatsumiite |
| Reference List: | Matsubara, S., Miyawaki, R., Kurosawa, M. and Suzuki, Y. (2003): Watatsumiite, KNa2LiMn2V2Si8O24, a new mineral from the Tanohata mine, Iwate Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 98, 142-150.
www2.ocn.ne.jp/~miyajima/ |
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Articles/Blogs about Watatsumiite |
Internet Links for Watatsumiite |
| Search Engines: |
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| External Links: | Look for Watatsumiite on WebmineralLook for Watatsumiite on Athena MineralogyLook for Watatsumiite on WikipediaLook for Watatsumiite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Watatsumiite in the Natural History Museum (London) online catalogue |
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| Mineral Dealers: | Wendel Minerals - Auktion & ShopThe Arkenstone - Fine MineralsMineral Classics - Worldwide Collector Quality Minerals and GemsBuy from David K Joyce mineralsSearch for Watatsumiite at Thames Valley MineralsFabre Minerals - search for Watatsumiite specimensBuy Minerals and Crystals from Crystalarium.comBuy Fine Minerals from mineralsweb.comLapis Mineral MagazinWright's Rock Shop - excellent mineral specimens since 1970Buy minerals from Mineralium.comFind Watatsumiite on www.crystalclassics.co.uk |
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Localities for Watatsumiite |