Classification of Manandonite |
| IMA status: | Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" |
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| Strunz 8th edition ID: | 8/H.23-100
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| Nickel-Strunz 10th (pending) edition ID: | 9.ED.15
9 : SILICATES (Germanates) E : Phyllosilicates D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets |
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| Dana 8th edition ID: | 71.1.2c.6
71 : PHYLLOSILICATES Sheets of Six-Membered Rings 1 : Sheets of 6-membered rings with 1:1 layers |
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| Hey's CIM Ref.: | 17.5.1
17 : Silicates Containing other Anions 5 : Borosilicates |
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| mindat.org URL: | http://www.mindat.org/min-2559.html Please feel free to link to this page. |
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Type Occurrence of Manandonite |
| Type Locality: | Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt Bity (Ibity) area), Vakinankaratra Region (Betafo - Antsirabé region), Antananarivo Province, Madagascar |
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| Year of Discovery: | 1912 |
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Physical Properties of Manandonite |
| Hardness (Mohs): | 2½ - 3½ |
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Crystallography of Manandonite |
| Crystal System: | Orthorhombic |
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| Cell Parameters: | a = 5.05Å, b = 8.76Å, c = 13.76Å
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| Ratio: | a:b:c = 0.576 : 1 : 1.571 |
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| Unit Cell Volume: | V 608.71 ų (Calculated from Unit Cell) |
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Optical Data of Manandonite |
| Type: | Biaxial (+) |
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| RI values: | nα = 1.600 nβ = 1.600 nγ = 1.610 |
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| 2V: | Measured: 14° to 30° |
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| Maximum Birefringence: | δ = 0.010
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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| Dispersion: | r < v weak |
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Chemical Properties of Manandonite |
| Formula: | |
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| Essential elements: | Al, B, H, Li, O, Si |
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| All elements listed in formula: | Al, B, H, Li, O, Si |
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| Common Impurities: | Mn,Mg,Ca,Na,K,H20 |
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Relationship of Manandonite to other Species |
| Member of: | Serpentine Group |
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| Related Minerals - Nickel-Strunz Grouping): | |
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| Related Minerals - Hey's Index Grouping: | | 17.5.2 | Reedmergnerite | | | 17.5.3 | Searlesite | | | 17.5.4 | Olenite | | ([ ],Na)[(Al,Li) | | ][Al | | ][(O,OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.5 | Elbaite | | [Na][(Li,Al) | | ][Al | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.6 | Kalborsite | | | 17.5.7 | Boromuscovite | | | 17.5.8 | Poudretteite | | | 17.5.9 | Liddicoatite | | [Ca][Li | | Al][Al | | ][(OH) | | |F|(BO | | ) | | |Si | | O | | ] |
| | 17.5.10 | Datolite | | | 17.5.11 | Danburite | | | 17.5.12 | Howlite | | | 17.5.13 | Bakerite | | | 17.5.14 | Oyelite | | | 17.5.15 | Kornerupine | | | 17.5.16 | Harkerite | | Ca | | Mg | | Al | | Si | | (O,OH) | | (BO | | ) | | (CO | | ) | | (H | | O,Cl) |
| | 17.5.17 | Serendibite | | (Ca,Na) | | (Mg,Fe | | ) | | (Al,Fe | | ) | | [O | | |(Si,Al,B) | | O | | ] |
| | 17.5.18 | Stillwellite-(Ce) | | | 17.5.19 | Tadzhikite-(Ce) | | (Ca,Ce) | | (Ca,Y) | | (Ti | | ,Fe | | ,Al)[B | | Si | | O | | (O,OH) | | ](OH) | | |
| | 17.5.20 | Melanocerite-(Ce) | | | 17.5.21 | Okanoganite-(Y) | | | 17.5.22 | Tritomite-(Ce) | | (Ce,La,Y,Th) | | (Si,B) | | (O,OH,F) | | |
| | 17.5.23 | Tritomite-(Y) | | (Y,Ca,La,Fe) | | (Si,B,Al) | | (O,OH,F) | | |
| | 17.5.24 | Cappelenite-(Y) | | | 17.5.25 | Dumortierite | | | 17.5.26 | Holtite | | | 17.5.27 | Dravite | | [Na][Mg | | ][Al | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.28
| Ferridravite | | | 17.5.29 | Axinite-(Mg) | | | 17.5.30 | Uvite | | [Ca][(Mg,Fe | | ) | | ][MgAl | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.31 | Garrelsite | | | 17.5.32 | Tienshanite | | | 17.5.33 | Leucosphenite | | | 17.5.34 | Taramellite | | | 17.5.35 | Titantaramellite | | | 17.5.36 | Nagashimalite | | | 17.5.37 | Chromdravite | | [Na][Mg | | ][(Cr | | ,Fe | | ) | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.38 | Wawayandaite | | | 17.5.39 | Werdingite | | | 17.5.40 | Axinite-(Mn) | | | 17.5.41 | Axinite | | | 17.5.42 | Tinzenite | | | 17.5.44 | Schorl | | [Na][Fe | | ][Al | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.45 | Buergerite | | [Na][Fe | | ][Al | | ][O | | |F|(BO | | ) | | |Si | | O | | ] |
| | 17.5.46 | Feruvite | | [Ca][(Fe | | ,Mg) | | ][MgAl | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
| | 17.5.47 | Axinite-(Fe) | | | 17.5.48 | Homilite | | | 17.5.49 | Grandidierite | | | 17.5.50 | Hyalotekite | | (Ba,Pb,Ca,K) | | (B,Si,Al) | | (Si,Be) | | O | | (F,Cl) |
| | 17.5.51 | Hellandite-(Y) | |
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Other Names for Manandonite |
| German names: | |
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| Russian names: | |
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| Spanish names: | |
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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 Manandonite |
| Reference List: | American Mineralogist (1995): 80: 387-393.
European Journal of Mineralogy: 1: 633-638.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
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Internet Links for Manandonite |
| Search Engines: |
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| External Links: | Look for Manandonite on WebmineralLook for Manandonite on Athena MineralogyLook for Manandonite on WikipediaLook for Manandonite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Manandonite in the Natural History Museum (London) online catalogueManandonite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | High-end worldwide specimens & outstanding customer serviceWright's Rock Shop - excellent mineral specimens since 1970Lapis Mineral MagazinWilensky Fine MineralsTop quality minerals from Kristalle of CaliforniaBuy fine minerals and gemstones from Pala InternationalSearch for Manandonite at Thames Valley MineralsMineral Classics - Worldwide Collector Quality Minerals and GemsFabre Minerals - search for Manandonite specimensFind Manandonite on www.crystalclassics.co.ukThe Arkenstone - Fine Mineralsrare and unusual minerals mainly crystallized |
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| Jobs: | Mining & Geology Jobs |
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Localities for Manandonite |