登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Brownmillerite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About BrownmilleriteHide

Formula:
Ca2(Al,Fe3+)2O5
Crystal System:
Orthorhombic
Name:
The artificial compound was named in 1932 for Dr. Lorrin Thomas Brownmiller (1902-1990), Chief Chemist of the Alpha Portland Cement Company, Easton, Pennsylvania, USA. The name was then transferred to the naturally-occurring mineral.
Brownmillerite-Srebrodolskite Series. Compare gorerite.

Compare also the related species shulamitite.


Classification of BrownmilleriteHide

Approved
4.AC.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
C : M:O = 1:1 (and up to 1:1.25); with large cations (+- smaller ones)
7.11.2.1

7 : MULTIPLE OXIDES
11 : Miscellaneous
7.20.15

7 : Oxides and Hydroxides
20 : Oxides of Fe

Pronounciation of BrownmilleriteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Optical Data of BrownmilleriteHide

Type:
Biaxial (-)
RI values:
nα = 1.960 nβ = 2.010 nγ = 2.040
2V:
Measured: 75° , Calculated: 72°
Max Birefringence:
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong

Chemical Properties of BrownmilleriteHide

Formula:
Ca2(Al,Fe3+)2O5
IMA Formula:
Ca2Fe3+AlO5

Crystallography of BrownmilleriteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Cell Parameters:
a = 5.57 Å, b = 14.52 Å, c = 5.34 Å
Ratio:
a:b:c = 0.384 : 1 : 0.368
Unit Cell V:
431.88 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space group Ibm2. Other cell parameters given: a = 5.584(5), b = 14.60(1), c = 5.374(5) A.

Geological EnvironmentHide

Geological Setting:
In thermally metamorphosed limestones

Type Occurrence of BrownmilleriteHide

Place of Conservation of Type Material:
Mineral Museum, University of Cologne, Cologne, Germany (No. M5026/86)
National Museum of Natural History, Washington, D.C., USA (No. 120045)
Geological Setting of Type Material:
In thermally metamorphosed limestone blocks included in volcanic rocks
Associated Minerals at Type Locality:

Synonyms of BrownmilleriteHide

Other Language Names for BrownmilleriteHide

Relationship of Brownmillerite to other SpeciesHide

Other Members of this group:
ShulamititeCa3TiFe3+AlO8Orth. mmm (2/m 2/m 2/m) : Pmma
SrebrodolskiteCa2Fe3+2O5Orth. mmm (2/m 2/m 2/m) : Pnma
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Brownmillerite associated with ReinhardbraunsiteCa5(SiO4)2(OH,F)2
1 photo of Brownmillerite associated with VapnikiteCa2CaUO6
1 photo of Brownmillerite associated with Ye'elimiteCa4Al6(SO4)O12
1 photo of Brownmillerite associated with LarniteCa2SiO4

Related Minerals - Nickel-Strunz GroupingHide

4.AC.05SwedenborgiteNaBe4Sb5+O7Hex. 6mm : P63mc
4.AC.10SrebrodolskiteCa2Fe3+2O5Orth. mmm (2/m 2/m 2/m) : Pnma
4.AC.15MontroyditeHgOOrth. mmm (2/m 2/m 2/m) : Pmmn
4.AC.20LithargePbOTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.AC.20RomarchiteSnOTet.
4.AC.25MassicotPbOOrth. mmm (2/m 2/m 2/m) : Cmmm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.20.1WüstiteFeOIso. m3m (4/m 3 2/m) : Fm3m
7.20.2MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.20.3Maghemite(Fe3+0.670.33)Fe3+2O4Iso. 4 3 2 : P41 3 2
7.20.4HematiteFe2O3Trig. 3m (3 2/m) : R3c
7.20.5Goethiteα-Fe3+O(OH)Orth. mmm (2/m 2/m 2/m)
7.20.6Akaganeite(Fe3+,Ni2+)8(OH,O)16Cl1.25 · nH2OMon. 2/m
7.20.7FeroxyhyteFe3+O(OH)Hex.
7.20.8Lepidocrociteγ-Fe3+O(OH)Orth. mm2 : Cmc21
7.20.9FerrihydriteFe3+10O14(OH)2Trig.
7.20.10AmakiniteFe2+(OH)2Trig.
7.20.11MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.20.12MuskoxiteMg7Fe4O13 · 10H2OTrig. 3m (3 2/m)
7.20.13SrebrodolskiteCa2Fe3+2O5Orth. mmm (2/m 2/m 2/m) : Pnma
7.20.14HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BrownmilleriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hentschel, G., (1964): Mayenit, 12CaO 7Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges: Neues Jahrb. Mineral., Mh. 1964, 22-29.
American Mineralogist: 50: 2106.
Acta Crystallographica: B27: 2311-2315.

Internet Links for BrownmilleriteHide

Localities for BrownmilleriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • Südoststeiermark District
      • Klöch
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993); Postl, W. et al. (2008)
China
 
  • Xinjiang
    • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
      • Yizhou District
        • Huangshan-Jing'erquan ore belt
Jingwen Mao, Pirajno, F., Zuoheng Zang, Fengmei Chai, Hua Wu, Shiping Chen, Linsong Cheng, Jianmin Yang, and Changqing Zhang (2007): Journal of Asian Earth Sciences (in press).
Czech Republic
 
  • South Moravian Region
    • Brno-Country District
      • Oslavany
Hršelová, P., Cempírek, J., Houzar, S., Sejkora, J. (2013): S,F,Cl-rich mineral assemblages from burned spoil heaps in the Rosice-Oslavany coalfield, Czech Republic. Can. Mineral.: 51(1): 171-188
Germany
 
  • North Rhine-Westphalia
    • Arnsberg
      • Märkischer Kreis
        • Iserlohn
          • Letmathe
Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.; Blaß, G. & Graf, H.W. (1994) Neufunde von bekannten Fundorten (9). Mineralien-Welt, 5 (1), 18-21.
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Mayen
        • Bellerberg volcano
          • Southern lava flow
            • Mayener Feld
in the collection of Christof Schäfer
        • Ettringen
          • Bellerberg volcano
Hentschel, G. (1978): Seltene Minerale in Calcium-reichen Auswürflingen vom Bellerberg bei Mayen/Eifel, Aufschluß 29, 77-83
Sharygin, V. V. (2012). Mineralogy of metacarbonate xenolith from alkali basalt, E. Eifel, Germany. In Ore Potential of Alkaline, Kimberlite and Carbonatite Magmatism. Book of Abstracts, XXIX International Conference. Training Program: Alkaline Magmatism of the Earth, Sudak-Moscow, ONTI GEOCHI RAS (pp. 156-158).
            • Southern lava flow
Hentschel, G. (1964): Mayenit, 12CaO . 7 Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch Mineralogie, Monatshefte, 22-29
Hentschel, G. (1964): Mayenit, 12CaO . 7 Al2O3, und Brownmillerit, 2CaO.(Al,Fe)2O3, zwei neue Minerale in den Kalksteineinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch Mineralogie, Monatshefte, 22-29
    • Vulkaneifel
      • Daun
        • Üdersdorf
Schüller, W., Betz, V., Die Mineralien vom Emmelberg, Lapis 12/1986
Israel
 
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
Juroszek, R.; Krüger, B.; Galuskina, I.; Krüger, H.; Tribus, M.; Kürsten, C. (2020) Raman Spectroscopy and Single-Crystal High-Temperature Investigations of Bentorite, Ca6Cr2(SO4)3(OH)12·26H2O. Minerals 10, 38.
Sharygin, V.V., Sokol, E.V. & Vapnik, Ye. (2008): Minerals of the pseudobinary perovskite-brownmillerite series from combustion metamorphic larnite rocks of the Hatrurim Formation (Israel). Russian Geology and Geophysics 49, 709-726.
  • Southern District (HaDarom District)
    • Arad
Sharygin, Victor V.; Yakovlev, Grigory A.; Wirth, Richard; Seryotkin, Yurii V.; Sokol, Ellina V.; Nigmatulina, Elena N.; Karmanov, Nikolai S.; Pautov, Leonid A. (2019) Nataliakulikite, Ca4Ti2(Fe3+,Fe2+)(Si,Fe3+,Al)O11, a New Perovskite-Supergroup Mineral from Hatrurim Basin, Negev Desert, Israel. Minerals 9, no. 11: 700.
Jordan
 
  • Amman Governorate
Pitty, A. F., & Alexander, W. R. (2010). A natural analogue study of cement buffered, hyperalkaline groundwaters and their interaction with a repository host rock IV: an examination of the Khushaym Matruk (central Jordan) and Maqarin (northern Jordan) sites. NDA-RWMD Technical Report, NDA, Moors Row, UK.
    • Hashem region
      • Lisdan-Siwaga Fault
        • Siwaga
Khoury, H.N., Sokol, E.V., Kokh, S.N., Seryotkin, Y.V., Nigmatulina, E.N., Goryainov, S.V., Belogub, E.V., Clark, I.D. (2016): Tululite, Ca14(Fe3+,Al)(Al,Zn,Fe3+,Si,P,Mn,Mg)15O36: a new Ca zincate-aluminate from combustion metamorphic marbles, central Jordan. Mineralogy and Petrology, 110, 125-140; Sokol, E. V., Kokh, S. N., Khoury, H. N., Seryotkin, Y. V., & Goryainov, S. V. (2016). Long-term immobilisation of Cd 2+ at the Tulul Al Hammam natural analogue site, central Jordan. Applied Geochemistry, 70, 43-60.; Khoury, H. N., Sokol, E. V., & Clark, I. D. (2015) Calcium uranium oxide minerals from Central Jordan: assemblages, chemistry, and alteration products. The Canadian Mineralogist, 53(1), 61-82.
Fleurance, S., Cuney, M., Malartre, F., & Reyx, J. (2013). Origin of the extreme polymetallic enrichment (Cd, Cr, Mo, Ni, U, V, Zn) of the Late Cretaceous–Early Tertiary Belqa Group, central Jordan. Palaeogeography, Palaeoclimatology, Palaeoecology, 369, 201-219.
  • Irbid Governorate
    • Maqarin area
Pitty, A. F., & Alexander, W. R. (2010). A natural analogue study of cement buffered, hyperalkaline groundwaters and their interaction with a repository host rock IV: an examination of the Khushaym Matruk (central Jordan) and Maqarin (northern Jordan) sites. NDA-RWMD Technical Report, NDA, Moors Row, UK.
Palestine
 
  • West Bank
    • Hatrurim Formation
Galuskin, E., Galuskina, I., Kusz, J., Armbruster, T., Marzec, K., Dzierżanowski, P., Murashko, M. (2014): Vapnikite Ca3UO6 - a new double perovskite mineral from pyrometamorphic larnite rocks of the Jabel Harmun, Palestine Autonomy, Israel. Mineralogical Magazine, 78, 571-581
Sokol, E.V., Gaskova, O.L., Kokh, S.N., Kozmenko, O.A., Seryotkin, Y.V., Vapnik, Y., Murashko, M.N. (2011): Chromatite and its Cr3+- and Cr6+-bearing precursor minerals from the Nabi Musa Mottled Zone complex, Judean Desert. American Mineralogist 96, 659-674.
Ella V. Sokol, Olga L. Gaskova, Svetlana N. Kokh, Olga A. Kozmenko, Yuri V. Seryotkin, Yevgeny Vapnik, and Michail N. Murashko (2011): Chromatite and its Cr3+- and Cr6+-bearing precursor minerals from the Nabi Musa Mottled Zone complex, Judean Desert. American Mineralogist, 96, 659-674.
Galuskina, I. O., Gfeller, F., Galuskin, E. V., Armbruster, T., Vapnik, Y., Dulski, M., ... & Murashko, M. (2018). New minerals with modular structure derived from hatrurite from the pyrometamorphic rocks, part IV: Dargaite, BaCa 12 (SiO 4) 4 (SO 4) 2 O 3, from Nahal Darga, Palestinian Autonomy. Mineralogical Magazine, 1-22.
Romania
 
  • Brașov
    • Racoş Commune
Szakáll, S., Kristály, F., 2010. Mineralogy of Székelyland, Eastern Transylvania, Romania. Sfântu Gheorghe-Miercurea Ciuc-Târgu Mureş. 2010.
  • Harghita
    • Odorheiu Secuiesc (Székelyudvarhely; Oderhellen)
      • Racoş (Racoşu de Jos)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
Ukraine
 
  • Donetsk Oblast
V.V. Sharygin (2011) Lakargiite and Minerals of the Perovskite-brownmillerite Series in Metacarbonate Rocks from Donetsk Burned Dumps
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.2.24 07:01:10 Page generated: 2020.2.13 18:48:24
Go to top of page