Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-14T19:21:40.064Z Has data issue: false hasContentIssue false
  • English
  • Français

Tetragonal Almandine-Pyrope Phase, TAPP: finally a name for it, the new mineral jeffbenite

Published online by Cambridge University Press:  02 January 2018

Fabrizio Nestola ,
Antony D. Burnham ,
Luca Peruzzo ,
Leonardo Tauro ,
Matteo Alvaro ,
Michael J. Walter ,
Mickey Gunter ,
Chiara Anzolini  and
Simon C. Kohn
Fabrizio Nestola*
Affiliation:
Dipartimento di Geoscienze, Università di Padova, Via Gradenigo, 6, I-35131 Padova, Italy
Antony D. Burnham
Affiliation:
School of Earth Sciences, University of Bristol, Queen's Road, Bristol BS8 1RJ, UK Now at Research School of Earth Sciences, Australian National University, Canberra, Australia
Luca Peruzzo
Affiliation:
CNR-IGG, Padova, Via Gradenigo, 6, I-35131 Padova, Italy
Leonardo Tauro
Affiliation:
Dipartimento di Geoscienze, Università di Padova, Via Gradenigo, 6, I-35131 Padova, Italy
Matteo Alvaro
Affiliation:
Dipartimento di Scienze della Terra e dell'Ambiente, Università di Pavia, Via Ferrata 1, 27100, Pavia, Italy
Michael J. Walter
Affiliation:
School of Earth Sciences, University of Bristol, Queen's Road, Bristol BS8 1RJ, UK
Mickey Gunter
Affiliation:
Geological Sciences, University of Idaho, 875 Perimeter MS 3022, Moscow, 83844-3022, USA
Chiara Anzolini
Affiliation:
Dipartimento di Geoscienze, Università di Padova, Via Gradenigo, 6, I-35131 Padova, Italy
Simon C. Kohn
Affiliation:
School of Earth Sciences, University of Bristol, Queen's Road, Bristol BS8 1RJ, UK
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Jeffbenite, ideally Mg3Al2Si3O8, previously known as tetragonal-almandine-pyrope-phase ('TAPP’), has been characterized as a new mineral from an inclusion in an alluvial diamond from São Luiz river, Juina district of Mato Grosso, Brazil. Its density is 3.576 g/cm3 and its microhardness is ∼7. Jeffbenite is uniaxial (-) with refractive indexes ω = 1.733(5) and ε = 1.721 (5). The crystals are in general transparent emerald green.

Its approximate chemical formula is (Mg262Fe2+0.27)(Al186Cr016)(Si2 g2Al018)O12 with very minor amounts of Mn, Na and Ca. Laser ablation ICP-MS showed that jeffbenite has a very low concentration of trace elements. Jeffbenite is tetragonal with space group I42d, cell edges being a = 6.5231(1) and c = 18.1756(3) Å. The main diffraction lines of the powder diagram are [d (in Å), intensity, hkl]: 2.647, 100, 2 0 4; 1.625, 44, 3 2 5; 2.881, 24, 2 1 1; 2.220, 19, 2 0 6; 1.390, 13, 4 2 4; 3.069, 11,2 0 2; 2.056, 11,2 2 4; 1.372, 11,2 0 12.

The structural formula of jeffbenite can be written as (M1)(M2)2(M3)2(T1)(T2)2O12 with M1 dominated by Mg, M2 dominated by Al, M3 dominated again by Mg and both T1 and T2 almost fully occupied by Si. The two tetrahedra do not share any oxygen with each other (i.e. jeffbenite is classified as an orthosilicate).

Jeffbenite was approved as a new mineral by the IMA Commission on New Minerals and Mineral Names with the code IMA 2014-097. Its name is after Jeffrey W. Harris and Ben Harte, two world-leading scientists in diamond research. The petrological importance of jeffbenite is related to its very deep origin, which may allow its use as a pressure marker for detecting super-deep diamonds. Previous experimental work carried out on a Ti-rich jeffbenite establishes that it can be formed at 13 GPa and 1700 K as maximum P-T conditions.

Keywords

TAPPjeffbenitephysical propertiespressure/temperature conditionsdiamondSão Luiz riverBrazil
Type
Research Article
Information
Mineralogical Magazine , Volume 80 , Issue 7 , December 2016 , pp. 1219 - 1232
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2016

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Angel, R.J. and Nestola, F. (2015) A century of mineral structures: how well do we know them? American Mineralogist, 101, 1036–1045.CrossRefGoogle Scholar
Angel, R.J., Finger, L.W., Hazen, R.M., Kanzaki, M., Weidner, D.J., Liebermann, R.C. and Veblen, D.R. (1989) Structure and twinning of single-crystal MgSiO3 garnet synthesized at 17 GPa and 1800°C. American Mineralogist, 74, 509—512.Google Scholar
Angel, R.J., Mazzucchelli, M.L., Alvaro, M., Nimis, P. and Nestola, F. (2014) Geobarometry from host-inclusion systems: the role of elastic relaxation. American Mineralogist, 99, 2146—214.CrossRefGoogle Scholar
Angel, R.J., Alvaro, M., Nestola, F. and Mazzucchelli, M.L. (2015a) Diamond thermoelastic properties and implications for determining the pressure of formation of diamond inclusion systems. Russian Geology and Geophysics, 56, 211–220.CrossRefGoogle Scholar
Angel, R.J., Nimis, P., Mazzucchelli, M.L., Alvaro, M. and Nestola, F. (20 15b) How large are departures from lithostatic pressure? Constraints from host-inclusion elasticity. Journal of Metamorphic Geology,https:// doi.org/10.1111/jmg.12138.Google Scholar
Armstrong, L.S. and Walter, M.J. (2012) Tetragonal almandine pyrope phase (TAPP): retrograde Mg-perovskite from subducted oceanic crust? European Journal of Mineralogy, 24, 587–597.CrossRefGoogle Scholar
Barron, L.M., Barron, B J., Mernagh, T.P. and Birch, W.D. (2008) Ultrahigh pressure macro diamonds from Copeton (New South Wales, Australia), based on Raman spectroscopy of inclusions. Ore Geology Reviews, 34, 76–86.CrossRefGoogle Scholar
Brenker, F.E., Stachel, T. and Harris, J.W. (2002) Exhumation of lower mantle inclusions in diamond: A TEM investigation of retrograde phase transitions, reactions and exsolution. Earth and Planetary Science Letters, 198, 1–9.CrossRefGoogle Scholar
Bulanova, G.P., Walter, M.J., Smith, C.B., Kohn, S.C., Armstrong, L.S., Blundy, J. and Gobbo, L. (2010) Mineral inclusions in sublithospehric diamonds from Collier 4 kimberlite pipe, Juina, Brazil: subducted protoliths, carbonated melts and primary kimberlite magmatism. Contributions to Mineralogy and Petrology, 160, 489–510.CrossRefGoogle Scholar
Chopin, C. (1984) Coesite and pure pyrope in high-grade blueschists of the Western Alps: a first record and some consequences. Contributions to Mineralogy and Petrology, 86, 107–118.CrossRefGoogle Scholar
Droop, G.T.R. (1987) A general equation for estimating Fe (super 3+) concentrations in ferromagnesian silicates and oxides from microprobe analyses, using stoichio-metric criteria. Mineralogical Magazine, 51,431–435.CrossRefGoogle Scholar
Finger, L.W.and Conrad, P.G.(2000) The crystal structure of “Tetragonal Almandine-Pyrope Phase” (TAPP): a re-examination. American Mineralogist, 85, 1804—1807.Google Scholar
Frost, D.J., Liebske, C., Langenhorst, F., McCammon, C.A., Trunnes, R.G. and Rubie, D.C. (2004) Experimental evidence for the existence of iron-rich metal in the Earth's lower mantle. Nature, 428, 409–412.CrossRefGoogle ScholarPubMed
Ganskow, G., Ballaran, T.B. and Langenhorst, E (2010) Effect of iron on the compressibility of hydrous ringwoodite. American Mineralogist, 95, 747—753.CrossRefGoogle Scholar
Gasparik, T. and Hutchison, M.T. (2000) Experimental evidence for the origin of two kinds of inclusions in diamonds from the deep mantle. Earth and Planetary Science Letters, 181, 103–114.CrossRefGoogle Scholar
Harris, J.W., Hutchison, M.T., Hursthouse, M., Light, M. and Harte, B. (1997) A new tetragonal silicate mineral occurring as inclusions in lower mantle diamonds. Nature, 387, 486–488.CrossRefGoogle Scholar
Harte, B. (2010) Diamond formation in the deep mantle: the record of mineral inclusions and their distribution in relation to mantle dehydration zones. Mineralogical Magazine, 74, 189–215.CrossRefGoogle Scholar
Harte, B. and Harris, J.W. (1994) Lower mantle mineral associations preserved in diamonds. Mineralogical Magazine, 58A, 384–385.CrossRefGoogle Scholar
Harte, B. and Hudson, N.F.C. (2013) Mineral associations in diamonds from the lowermost Upper mantle and uppermost lower mantle. Proceedings of 10th InternationalKimberlite Conference, 235–253.Google Scholar
Harte, B., Harris, J.W., Hutchison, M.T., Watt, G.R. and Wilding, M.C. (1999) Lower mantle mineral associations in diamonds from Sao Luiz, Brazil. Pp. 125–153 in: Mantle Petrology: Field Observations and High Pressure Experimentation: A Tribute to Francis R. (Joe) Boy.(Y Fei, C.M. Bertka and B.O. Mysen, editors). The Geochemical Society, Houston, Texas, USA.Google Scholar
Hayman, P.C., Kopylova, M.G. and Kaminsky, F.V. (2005) Lower mantle diamonds from Rio Soriso (Juina area, Mato Grosso, Brazil). Contributions to Mineralogy and Petrology, 149, 430–445.CrossRefGoogle Scholar
Holland, T.J.B. and Redfern, S.A.T. (1997) Unit cell refinement from powder diffraction data: The use of regression diagnostics. Mineralogical Magazine, 61, 65–77.CrossRefGoogle Scholar
Howell, D., Wood, I.G., Nestola, F., Nimis, P. and Nasdala, L. (2012) Inclusions under remnant pressure in diamond: a multi-technique approach. European Journal of Mineralogy, 24, 563—573.CrossRefGoogle Scholar
Hutchison, M.T., Hursthouse, M.B. and Light, M.E. (2001) Mineral inclusions in diamonds: associations and chemical distinctions around the 670-km discontinuity. Contributions to Mineralogy and Petrology, 142, 199–126.CrossRefGoogle Scholar
Jochum, K.P., Willbold, M., Raczek, I., Stoll, B. and Herwig, K. (2005) Chemical characterisation of the USGS reference glasses GSA-1G, GSC-1G, GSD-1G, GSE-1G, BCR-2G, BHVO-2G and BIR-1G using EPMA, ID-TIMS, ID-ICP-MS and LA-ICP-MS. Geostandards and Geoanalytical Research, 29, 285–302.CrossRefGoogle Scholar
Jacobsen, S.D., Spetzler, H.A., Reichmann, H.J., Smyth, J.R., MackwellS.J., , Angel, R.J. and Bassett, W.A. (2002) Gigahertz ultrasonic interferometry at high P and T: new tools for obtaining a thermodynamic equation of state. Journal of Physics — Condensed Matter, 14, 11525–11530.CrossRefGoogle Scholar
Kaminsky, E (2012) Mineralogy of the lower mantle: a review of “super-deep” mineral inclusions in diamond. Earth Science Reviews, 110, 127–147.CrossRefGoogle Scholar
Kaminsky, EY, Zakharchenko, O.D., Davies, R., Griffin, W.L., Khachatryan-Blinova, G.K. and Shiryaev, A.A. (2001) Superdeep diamonds from the Juina area, Mato Grosso State, Brazil. Contributions to Mineralogy and Petrology, 140, 734–753.CrossRefGoogle Scholar
Kolesov, B.A. and Geiger, C.A. (1998) Raman spectra of silicate garnets. Physics and Chemistry of Minerals, 25, 142–151.CrossRefGoogle Scholar
Lafuente, B., Downs, R.T., Yang, H. and Stone, N. (2015) The power of databases: the RRUFF project. Pp. 1—30 in: Highlights in Mineralogical Crystallograph.(T. Armbruster and R.M. Danisi, edtors). De Gruyter, Berlin, Germany.Google Scholar
Liou, J.G., Zhang, R.Y., Liu, F.L., Zhang, Z.M. and Ernst, W.G. (2012) Mineralogy, petrology, U-Pb geochronology, and geologic evolution of the Dabie-Sulu classic ultrahigh-pressure terrane, East-Central China. American Mineralogist, 97, 1533–1543.CrossRefGoogle Scholar
Mandarino, J.A. (1981) The Gladstone-Dale relationship: Part IV The compatibility concept and its application. The Canadian Mineralogist, 19, 441–450.Google Scholar
McCammon, C., Hutchison, M. and Harris, 1 (1997) Ferric iron content of mineral inclusions in diamonds from São Luiz: a view into the lower mantle. Science, 278, 434–36.CrossRefGoogle Scholar
McCammon, C.A., Stachel, T and Harris, J.W. (2004) Iron oxidation state in lower mantle mineral assem-blages. II. Inclusions in diamonds from Kankan, Guinea. Earth and Planetary Science Letters, 222, 423–34.CrossRefGoogle Scholar
Milani, S., Nestola, F., Alvaro, M., Pasqual, D., Mazzucchelli, M.L., Domeneghetti, M.C. and Geiger, C.A. (2015) Diamond-garnet geobarometry: the role of garnet compressibility and expansivity. Lithos, 227, 140–147.CrossRefGoogle Scholar
Nestola, E and Smyth, J.R. (2016) Diamonds and water in the deep Earth: a new scenario. International Geology Review, 58, 263–276.Google Scholar
Nestola, F., Nimis, P., Angel, R.J., Milani, S., Bruno, M., Prencipe, M. and Harris, J.W. (2014a) Olivine with diamond-imposed morphology included in diamonds. Syngenesis or protogenesis? International Geology Review, 56, 1658–1667.CrossRefGoogle Scholar
Nestola, F., Periotto, B., Andreozzi, G.B., Bruschini, E. and Bosi, E (2014b) Pressure-volume equation of state for chromite and magnesiochromite: a single-crystal X-ray diffraction investigation. American Mineralogist, 99, 1248–1255.CrossRefGoogle Scholar
Nestola, F., Boffa Ballaran, T., Koch-Mueller, M., Balic-Zunic, T., Taran, M., Olsen, L., Princivalle, F., Secco, L. and Lundegaard, L. (2010) New accurate compression data for gamma-Fe2SiO4. Physics of the Earth and Planetary Interiors, 183, 421-25.CrossRefGoogle Scholar
Parkinson, C.D. (2000) Coesite inclusions and prograde compositional zonation of garnet in whiteschist of the HP-UHPM Kokchetav massif, Kazakhstan: a record of progressive UHP metamorphism. Lithos, 52, 215–233.CrossRefGoogle Scholar
Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica Section A, 64, 112—122.Google Scholar
Stachel, T. (2001) Diamonds from the asthenosphere and the transition zone. European Journal of Mineralogy, 13, 883–892.CrossRefGoogle Scholar
Thomson, A.R., Kohn, S.C., Bulanova, G.P., Smith, C.B., Araujo, D. and Walter, M.J. (2014) Origin of sub-lithospheric diamonds from the Juina-5 kimberlite (Brazil): constraints from carbon isotopes and inclusion compositions. Contributions to Mineralogy and Petrology, 168, article 1081.CrossRefGoogle Scholar
van Roermund, H.L.M. and Drury, M.R. (1998) Ultra-high pressure (P > 6 GPa) garnet peridotites in Western Norway: exhumation of mantle rocks from >185 km depth. Terra Nova, 10, 295–301.CrossRefGoogle Scholar
Vanpeteghem, C.B., Zhao, J., Angel, R.J., Ross, N.L. and Bolfan-Casanova, N. (2006) Crystal structure and equation of state of MgSiO3 perovskite. Geophysical Research Letters, 33, L03306.CrossRefGoogle Scholar
Walter, M.J., Kohn, S.C., Araujo, D., Bulanova, G.P., Smith, C.B., Gaillou, E., Wang, J., Steele, A. and Shirey, S.B. (2011) Deep mantle cycling of oceanic crust: evidence from diamonds and their mineral inclusions. Science, 334, 54–57.CrossRefGoogle ScholarPubMed
Ye, Y., Smyth, J.R., Hushur, A., Manghnani, M.H., Lonappan, D., Dera, P. and Frost, D.J. (2010) Crystal structure of hydrous wadsleyite with 2.8% H2O and compressibility to 60 GPa. American Mineralogist, 95, 1765–1772.CrossRefGoogle Scholar
Ye, Y., Brown, D.A., Smyth, J.R., Panero, W.R., Jacobsen, S.D., Chang, Y.Y., Townsend, IP, Thomas, S.M., Hauri, E.H., Dera, P. and Frost, D J. (2012) Compressibility and thermal expansion of hydrous ringwoodite with 2.5(3) wt% H2O. American Mineralogist, 97, 573–582.CrossRefGoogle Scholar
Zedgenizov, D.A., Kagi, H., Shatsky, V.S. and Ragozin, A.L. (2014) Local variations of carbon isotope composition in diamonds from Sao-Luis (Brazil): Evidence for heterogenous carbon reservoir in sub-litho spheric mantle. Chemical Geology,363, 114—124.Google Scholar
Zhang, L.F., Ellis, D J. and Jiang, W.B. (2002) Ultrahigh-pressure metamorphism in western Tianshan, China: Part I. Evidence from inclusions of coesite pseudo-morphs in garnet and from quartz exsolution lamellae in omphacite in eclogites. American Mineralogist, 87, 853–860.CrossRefGoogle Scholar
Supplementary material: File

Nestola et al. supplementary material

CIF

Download Nestola et al. supplementary material(File)
File 42.7 KB
Supplementary material: File

Nestola et al. supplementary material

Structure factors

Download Nestola et al. supplementary material(File)
File 61.9 KB