Classification of Bafertisite |
| IMA status: | Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" |
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| Strunz 8th edition ID: | 8/C.13-70
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| Nickel-Strunz 10th (pending) edition ID: | 9.BE.55
9 : SILICATES (Germanates) B : Sorosilicates E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination |
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| Dana 8th edition ID: | 56.2.6b.1
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O 2 : Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination |
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| Hey's CIM Ref.: | 14.9.17
14 : Silicates not Containing Aluminum 9 : Silicates of Ti |
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| mindat.org URL: | http://www.mindat.org/min-482.html Please feel free to link to this page. |
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Type Occurrence of Bafertisite |
| Type Locality: | Bayan Obo (Bayun-Obo; Baiyunebo) deposit, Bayan Obo, Darhan Muminggan United Banner, Baotou League, Inner Mongolia Autonomous Region, China |
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| Year of Discovery: | 1959 |
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Physical Properties of Bafertisite |
| Lustre: | Vitreous |
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| Colour: | Red, yellowish-red, light brown |
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| Streak: | White |
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| Hardness (Mohs): | 5 |
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Crystallography of Bafertisite |
| Crystal System: | Monoclinic |
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| Cell Parameters: | a = 10.6Å, b = 13.64Å, c = 12.47Å β = 119.5° |
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| Ratio: | a:b:c = 0.777 : 1 : 0.914 |
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| Unit Cell Volume: | V 1,569.22 ų (Calculated from Unit Cell) |
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Optical Data of Bafertisite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.786 - 1.808 nβ = 1.813 - 1.835 nγ = 1.852 - 1.862 |
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| 2V: | Measured: 54° to 86°, Calculated: 82° to 88° |
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| Maximum Birefringence: | δ = 0.066
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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| Dispersion: | r << v |
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Chemical Properties of Bafertisite |
| Formula: | | Ba(Fe | | ,Mn | | ) | | Ti[O|(O,OH) | | |Si | | O | | ] |
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| Essential elements: | Ba, Fe, O, Si, Ti |
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| All elements listed in formula: | Ba, Fe, H, Mn, O, Si, Ti |
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| Common Impurities: | Al,Nb,Mg,Ca,K,Na,F,Cl |
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Relationship of Bafertisite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | | 9.BE.02 | Wadsleyite | | | 9.BE.05 | Hennomartinite | | | 9.BE.05 | Lawsonite | | | 9.BE.05 | Noelbensonite | | | 9.BE.05 | Itoigawaite | | | 9.BE.07 | Ilvaite | | | 9.BE.07 | Manganilvaite | | | 9.BE.10 | Suolunite | | | 9.BE.12 | Jaffeite | | | 9.BE.15 | Fresnoite | | | 9.BE.17 | Baghdadite | | | 9.BE.17 | Burpalite | | | 9.BE.17 | Cuspidine | | | 9.BE.17 | Hiortdahlite | | (Ca,Na) | | (Zr,Ti)Si | | O | | (O,OH,F) | | |
| | 9.BE.17 | Janhaugite | | (Na,Ca) | | (Mn,Fe) | | (Ti,Zr,Nb) | | Si | | O | | (OH,F,O) | | |
| | 9.BE.17 | Låvenite | | (Na,Ca) | | (Mn | | ,Fe | | )(Zr,Ti)[(O,OH,F) | | |Si | | O | | ] |
| | 9.BE.17 | Niocalite | | | 9.BE.17 | Normandite | | NaCa(Mn,Fe)(Ti,Nb,Zr)[(O,F) | | |Si | | O | | ] |
| | 9.BE.17 | Wöhlerite | | NaCa | | (Zr,Nb)[(O,OH,F) | | |Si | | O | | ] |
| | 9.BE.17 | Hiortdahlite I | | | 9.BE.17 | IMA2005-005a | | | 9.BE.20 | Mosandrite | | (Ca,Na,Ce) | | (Ti,Zr) | | [F | | |(OH) | | |SiO | | |(Si | | O | | ) | | ] |
| | 9.BE.20 | Nacareniobsite-(Ce) | | Na | | Ca | | (Ce,La,Nd)Nb[F | | |O|(Si | | O | | ) | | ] |
| | 9.BE.20 | Rinkite | | Na(Na,Ca) | | (Ca,Ce) | | Ti[F | | |(O,F) | | |(Si | | O | | ) | | ] |
| | 9.BE.22 | Götzenite | | | 9.BE.22 | Hainite | | | 9.BE.22 | Rosenbuschite | | | 9.BE.22 | Kochite | | (Na,Ca) | | Ca | | (Mn,Ca)ZrTi[(F,O) | | |(Si | | O | | ) | | ] |
| | 9.BE.23 | Dovyrenite | | | 9.BE.25 | Barytolamprophyllite | | (Ba,Na) | | (Na,Ti,Fe | | ) | | Ti | | [O|(OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Ericssonite | | | 9.BE.25 | Lamprophyllite | | (Sr,K,Ba) | | (Na,Ti,Mn | | ,Fe | | ) | | Ti | | [O|(O,OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Orthoericssonite | | | 9.BE.25 | Seidozerite | | | 9.BE.25 | Nabalamprophyllite | | Na | | (Ba,Na) | | Ti | | [O|(OH,F)|Si | | O | | ] | | |
| | 9.BE.25 | Grenmarite | | (Zr,Mn) | | (Zr,Ti)(Mn,Na)(Na,Ca) | | (Si | | O | | ) | | (O,F) | | |
| | 9.BE.27 | Murmanite | | | 9.BE.30 | Epistolite | | | 9.BE.32 | Lomonosovite | | | 9.BE.35 | Vuonnemite | | | 9.BE.37 | Sobolevite | | Na | | Ca(NaCaMn)Ti | | (Si | | O | | ) | | (PO | | ) | | O | | F | | |
| | 9.BE.40 | Innelite | | Na | | (Ba,K) | | (Mg,Ca,Fe)Ti | | Si | | O | | (OH,F) | | SO | | |
| | 9.BE.40 | Phosphoinnelite | | Ba | | Na | | Ti | | [(O,F) | | |(PO | | ,SO | | ) | | |Si | | O | | ] |
| | 9.BE.42 | Yoshimuraite | | | 9.BE.45 | Quadruphite | | | 9.BE.47 | Polyphite | | | 9.BE.50 | Bornemanite | | | 9.BE.50 | Shkatulkaite | | Na | | Mn | | Ti | | Nb | | [(OH) | | |F|(Si | | O | | ) | | ] · 12H | | O |
| | 9.BE.50 | Shkatulkalite | | | 9.BE.50 | Bykovaite | | BaNa(Na,Ti) | | [(OH,F) | | |(Ti,Nb) | | Si | | O | | (O,OH) | | ] · 3H | | O |
| | 9.BE.55 | Hejtmanite | | Ba(Mn | | ,Fe | | ) | | Ti[O|(OH,F) | | |Si | | O | | ] |
| | 9.BE.55 | Nechelyustovite | | (Ba,Na) | | {(Na,Ti,Mn) | | [(Ti,Nb) | | (OH) | | Si | | O | | ](OH,O,F) | | } · 3H | | O |
| | 9.BE.60 | Delindeite | | (Na,K) | | (Ba,Ca) | | (Ti,Fe,Al) | | Si | | O | | (OH) | | |
| | 9.BE.65 | Bussenite | | | 9.BE.67 | Jinshajiangite | | (Na,Ca)(Ba,K)(Fe,Mn) | | Ti | | Si | | O | | (F,O,OH) | | |
| | 9.BE.67 | Perraultite | | (Na,Ca)(Ba,K)(Mn,Fe) | | (Ti,Nb) | | Si | | O | | (OH,F,O) | | |
| | 9.BE.67 | Surkhobite | | (Ba,K) | | CaNaMn | | Ti | | (Si | | O | | ) | | O | | (F,OH,O) | | |
| | 9.BE.70 | Karnasurtite-(Ce) | | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P) | | O | | (OH) | | ·3H | | O |
| | 9.BE.70 | Perrierite-(Ce) | | (Ce,Ca,Th) | | (Mg,Fe | | ) | | (Ti,Fe | | ) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Strontiochevkinite | | (Sr,La,Ce,Ca) | | Fe | | (Ti,Zr) | | Ti | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Chevkinite-(Ce) | | (Ce,La,Ca,Na,Th) | | (Fe | | ,Mg)(Fe | | ,Ti,Fe | | ) | | (Ti,Fe | | ,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Polyakovite-(Ce) | | (Ce,Ca) | | (Mg,Fe | | )(Cr | | ,Fe | | ) | | (Ti,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Rengeite | | | 9.BE.70 | Matsubaraite | | | 9.BE.70 | Dingdaohengite-(Ce) | | | 9.BE.70 | Maoniupingite-(Ce) | | (REE,Ca) | | (Fe | | ,Ti,Fe | | ,[])(Ti,Fe | | ,Fe | | ,Nb) | | [O | | |Si | | O | | ] | | |
| | 9.BE.70 | Perrierite-(La) | | (La,Ce, Ca) | | (Fe,Mn | | ,Mg)(Ti,Fe) | | [O | | |Si | | O | | ] | | |
| | 9.BE.72 | Fersmanite | | | 9.BE.75 | Belkovite | | | 9.BE.77 | Nasonite | | | 9.BE.80 | Kentrolite | | | 9.BE.80 | Melanotekite | | | 9.BE.82 | Tilleyite | | | 9.BE.85 | Killalaite | | | 9.BE.87 | Stavelotite-(La) | | (La,Nd,Ca) | | Mn | | Cu(Mn | | ,Fe | | ,Mn | | ) | | [O | | |Si | | O | | ] | | |
| | 9.BE.90 | Biraite-(Ce) | |
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| Related Minerals - Hey's Index Grouping: | | 14.9.1 | Natisite | | | 14.9.2 | Lorenzenite | | | 14.9.3 | Lintisite | | | 14.9.4 | Davanite | | | 14.9.5 | Kazakovite | | | 14.9.6 | Titanite | | | 14.9.7 | Ohmilite | | Sr | | (Ti,Fe | | )[(O,OH)|(Si | | O | | ) | | ] · 2-3H | | O |
| | 14.9.8 | Lamprophyllite | | (Sr,K,Ba) | | (Na,Ti,Mn | | ,Fe | | ) | | Ti | | [O|(O,OH,F)|Si | | O | | ] | | |
| | 14.9.9 | Benitoite | | | 14.9.10 | Batisite | | | 14.9.11 | Fresnoite | | | 14.9.12 | Joaquinite-(Ce) | | | 14.9.13 | Orthojoaquinite-(Ce) | | | 14.9.14 | Strontiojoaquinite | | Sr | | Ba | | (Na,Fe) | | Ti | | Si | | O | | (O,OH) | | ·H | | O |
| | 14.9.15 | Bario-orthojoaquinite | | | 14.9.16 | Strontio-orthojoaquinite | | Sr | | Ba | | (Na,Fe) | | Ti | | Si | | O | | (O,OH) | | ·H | | O |
| | 14.9.18 | Hejtmanite | | Ba(Mn | | ,Fe | | ) | | Ti[O|(OH,F) | | |Si | | O | | ] |
| | 14.9.19 | Delindeite | | (Na,K) | | (Ba,Ca) | | (Ti,Fe,Al) | | Si | | O | | (OH) | | |
| | 14.9.20 | Barytolamprophyllite | | (Ba,Na) | | (Na,Ti,Fe | | ) | | Ti | | [O|(OH,F)|Si | | O | | ] | | |
| | 14.9.21 | Trimounsite-(Y) | | | 14.9.22 | Perrierite-(Ce) | | (Ce,Ca,Th) | | (Mg,Fe | | ) | | (Ti,Fe | | ) | | [O | | |Si | | O | | ] | | |
| | 14.9.23 | Chevkinite | | (Ca,Ce,Th) | | (Fe,Mn) | | (Ti,Fe) | | Si | | O | | |
| | 14.9.24 | Strontiochevkinite | | (Sr,La,Ce,Ca) | | Fe | | (Ti,Zr) | | Ti | | [O | | |Si | | O | | ] | | |
| | 14.9.25 | Tisinalite | | Na | | H | | (Mn,Ca,Fe)TiSi | | (O,OH) | | ·2H | | O |
| | 14.9.26 | Neptunite | | | 14.9.27 | Manganoneptunite | | | 14.9.28 | Kupletskite | | | 14.9.29 | Astrophyllite | | | 14.9.30 | Hydroastrophyllite | | (H | | O,K,Ca) | | (Fe,Mn) | | Ti | | Si | | (O,OH) | | |
| | 14.9.31 | Magnesioastrophyllite | | (Na,K) | | Mg | | (Fe,Fe,Mn) | | Ti | | Si | | O | | (O,OH,F) | | |
| | 14.9.32 | Baratovite | | | 14.9.34 | Aenigmatite | | | 14.9.35 | Schorlomite | | | 14.9.36 | Tinaksite | | | 14.9.37 | Janhaugite | | (Na,Ca) | | (Mn,Fe) | | (Ti,Zr,Nb) | | Si | | O | | (OH,F,O) | | |
| | 14.9.38 | Koashvite | |
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Other Names for Bafertisite |
| 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 Bafertisite |
| Reference List: | Semenov, E. I., and Chang Pei-Shan (1959): New mineral - Bafertisite. Science Record (Beijing) 3(12), 652-55 (in Russian). - American Mineralogist (1960), 45, 1317 (abstract)
American Mineralogist (1972), 57, 1005.
Doklady Akademii Nauk SSSR 149, 1416-1419.
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Internet Links for Bafertisite |
| Search Engines: |
Look for Bafertisite on Google
Look for Bafertisite images on Google |
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| External Links: | Look for Bafertisite on WebmineralLook for Bafertisite on Athena MineralogyLook for Bafertisite on WikipediaLook for Bafertisite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Bafertisite in the Natural History Museum (London) online catalogueBafertisite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | High-end worldwide specimens & outstanding customer serviceRare and Unusual minerals at Mineralogical Research CompanyBuy Minerals and Crystals from Crystalarium.comSearch for Bafertisite on minvision.comThe Arkenstone - Fine MineralsBuy Fine Minerals from mineralsweb.comMineral Classics - Worldwide Collector Quality Minerals and GemsWilensky Fine MineralsFine Minerals from Dan Weinrich MineralsSearch for Bafertisite at Thames Valley MineralsFind Bafertisite on www.crystalclassics.co.ukrare and unusual minerals mainly crystallized |
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Localities for Bafertisite |
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