Majorite R210005

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Record 64 of 96  

Name: Majorite
RRUFF ID: R210005
Ideal Chemistry: Mg3(MgSi)(SiO4)3
Locality: Synthesized at at 20-25 GPa and 1600-1700 °C
Source: Jurgen Konzett TP-MA-6
Owner: RRUFF
Description: Colorless grains, associated with bridgmanite (R210006).
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ garnet (96) ]
RRUFF ID: R210005.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Mg2.57Fe0.26Ca0.16Mn0.01)Σ3.00(Mg0.73Al0.72Si0.51)Σ1.96[(Si0.98P0.02)O4]3
Microprobe Data File: [ Download Excel File ]
RRUFF ID: R210005
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.571(4)Å    b: 11.571(4)Å    c: 11.539(3)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1544.9(8)Å3    Crystal System: tetragonal

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REFERENCES for Majorite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Fleischer M, Nickel E H (1970) New mineral names, American Mineralogist, 55, 1810-1818   [view file]

Smith J V, Mason B (1970) Pyroxene-garnet transformation in Coorara meteorite, Science, 168, 832-833

Coleman L C (1977) Ringwoodite and majorite in the Catherwood meteorite, The Canadian Mineralogist, 15, 97-101   [view file]

Mao H K, Bell P M, Boctor N Z (1982) The mineral chemistry of majorite in L6 chondrites, Annual Report of the Director Geophysical Laboratory, 81, 279-281

Hazen R M, Downs R T, Finger L W, Conrad P G (1994) Crystal chemistry of Ca-bearing majorite, American Mineralogist, 79, 581-584   [view file]

Hofmeister A, Giesting P, Wopenka B, Gwanmesia G, Jolliff B (2004) Vibrational spectroscopy of pyrope-majorite garnets: structural implications, American Mineralogist, 89, 132-146   [view file]

Vinograd V L, Winkler B, Wilson D J, Putnis A, Gale J D (2006) Monte Carlo simulation of mixing in Ca3Fe2Ge3O12 – Ca4Ge4O12 garnets and implications for the thermodynamic stability of pyrope-majorite solid solution, Physics and Chemistry of Minerals, 33, 533-544

Grew E S, Locock A J, Mills S J, Galuskina I O, Galuskin E V, Hålenius U (2013) Nomenclature of the garnet supergroup, American Mineralogist, 98, 785-811   [view file]

Ismailova L, Bobrov A, Bykov M, Bykova E, Cerantola V, Kantor I, Kupenko I, McCammon C, Dyadkin V, Chernyshov D, Pascarelli S, Chumakov A, Dubrovinskaia N, Dubrovinsky L (2015) High-pressure synthesis of skiagite-majorite garnet and investigation of its crystal structure, American Mineralogist, 100, 2650-2654

Thomas S M, Wilson K, Koch-Müller M, Hauri E H, McCammon C, Jacobsen S D, Lazarz J, Rhede D, Ren M, Blair N, Lenz S (2015) Quantification of water in majoritic garnet, American Mineralogist, 100, 1084-1092

Pierre M D L, Belmonte D (2016) Ab initio investigation of majorite and pyrope garnets: lattice dynamics and vibrational spectra, American Mineralogist, 101, 162-174

Ismailova L, Bykov M, Bykova E, Bobrov A, Kupenko I, Cerantola V, Vasiukov D, Dubrovinskaia N, McCammon C, Hanfland M, Glazyrin K, Liermann H, Chumakov A, Dubrovinsky L (2017) Effect of composition on compressibility of skiagite-Fe-majorite garnet, American Mineralogist, 102, 184-191

Liu Z, Gréaux S, Cai N, Siersch N, Ballaran T B, Irifune T, Frost D J (2019) Influence of aluminum on the elasticity of majorite-pyrope garnets, American Mineralogist, 104, 929-935

Koemets I, Satta N, Marquardt H, Kiseeva E S, Kurnosov A, Stachel T, Harris J W, Dubrovinsky L (2020) Elastic profiles of majoritic garnet inclusions in diamonds and the seismic signatures of pyroxenites in the Earth's upper mantle, American Mineralogist, 105, 984-991