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Journal Article

Yangite, PbMnSi 3 O 8 ·H 2 O, a new mineral species with double wollastonite silicate chains, from the Kombat mine, Namibia

Robert T. Downs, William W. Pinch, Richard M. Thompson, Stanley H. Evans, Lauren Megaw
Published: 01 November 2016
American Mineralogist (2016) 101 (11): 2539–2543.
DOI: https://doi.org/10.2138/am-2016-5682
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Ideal wollastonite and the structural relationship between the pyroxenoids and pyroxenes

Richard M. Thompson, Hexiong Yang, Robert T. Downs
Published: 01 November 2016
American Mineralogist (2016) 101 (11): 2544–2553.
DOI: https://doi.org/10.2138/am-2016-5683
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A comparison of the Ca 3 (PO 4 ) 2 and CaSiO 3 systems, with a new structure refinement of tuite synthesized at 15 GPa and 1300 °C

Richard M. Thompson, Xiande Xie, Shuangmeng Zhai, Robert T. Downs, Hexiong Yang
Published: 01 August 2013
American Mineralogist (2013) 98 (8-9): 1585–1592.
DOI: https://doi.org/10.2138/am.2013.4435
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Packing systematics and structural relationships of the new copper molybdate markascherite and related minerals

Richard M. Thompson, Hexiong Yang, Robert T. Downs
Published: 01 November 2012
American Mineralogist (2012) 97 (11-12): 1977–1986.
DOI: https://doi.org/10.2138/am.2012.4128
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The compression pathway of quartz

Richard M. Thompson, Robert T. Downs, Przemyslaw Dera
Published: 01 October 2011
American Mineralogist (2011) 96 (10): 1495–1502.
DOI: https://doi.org/10.2138/am.2011.3843
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Packing systematics of the silica polymorphs: The role played by O-O nonbonded interactions in the compression of quartz

Richard M. Thompson, Robert T. Downs
Published: 01 January 2010
American Mineralogist (2010) 95 (1): 104–111.
DOI: https://doi.org/10.2138/am.2010.3241
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In situ high-pressure single-crystal X-ray study of aegirine, NaFe 3+ Si 2 O 6 , and the role of M1 size in clinopyroxene compressibility

Andrew C. McCarthy, Robert T. Downs, Richard M. Thompson, Günther J. Redhammer
Published: 01 November 2008
American Mineralogist (2008) 93 (11-12): 1829–1837.
DOI: https://doi.org/10.2138/am.2008.2725
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The crystal structure of diopside at pressure to 10 GPa

Richard M. Thompson, Robert T. Downs
Published: 01 January 2008
American Mineralogist (2008) 93 (1): 177–186.
DOI: https://doi.org/10.2138/am.2008.2684
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Journal Article

Compressibility trends of the clinopyroxenes, and in-situ high-pressure single-crystal X-ray diffraction study of jadeite

Andrew C. McCarthy, Robert T. Downs, Richard M. Thompson
Published: 01 January 2008
American Mineralogist (2008) 93 (1): 198–209.
DOI: https://doi.org/10.2138/am.2008.2521
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Model pyroxenes III: Volume of C 2/ c pyroxenes at mantle P , T , and x

Richard M. Thompson, Robert T. Downs, Günther J. Redhammer
Published: 01 November 2005
American Mineralogist (2005) 90 (11-12): 1840–1851.
DOI: https://doi.org/10.2138/am.2005.1854
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Model pyroxenes II: Structural variation as a function of tetrahedral rotation

Richard M. Thompson, Robert T. Downs
Published: 01 April 2004
American Mineralogist (2004) 89 (4): 614–628.
DOI: https://doi.org/10.2138/am-2004-0416
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High-pressure crystal structure of kosmochlor, NaCrSi 2 O 6 , and systematics of anisotropic compression in pyroxenes

Marcus J. Origlieri, Robert T. Downs, Richard M. Thompson, Carolyn J.S. Pommier, M. Bonner Denton, George E. Harlow
Published: 01 July 2003
American Mineralogist (2003) 88 (7): 1025–1032.
DOI: https://doi.org/10.2138/am-2003-0711
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Model pyroxenes I: Ideal pyroxene topologies

Richard M. Thompson, Robert T. Downs
Published: 01 April 2003
American Mineralogist (2003) 88 (4): 653–666.
DOI: https://doi.org/10.2138/am-2003-0419
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