All Stories

  1. Thermoelasticity, cation exchange, and deprotonation in Fe-rich holmquistite: Toward a crystal-chemical model for the high-temperature behavior of orthorhombic amphiboles

    Article • American Mineralogist, December 2019, Mineralogical Society of America

    Roberta Oberti

  2. Ferri-fluoro-katophorite from Bear Lake diggings, Bancroft area, Ontario, Canada: a new species of amphibole, ideally Na(NaCa)(Mg4Fe3+)(Si7Al)O22F2

    Article • Mineralogical Magazine, July 2018, Mineralogical Society

    Roberta Oberti

  3. Potassic-magnesio-arfvedsonite – KNa2(MgFe2+Fe3+)5Si8O22(OH)2: mineral description and crystal chemistry

    Article • Mineralogical Magazine, July 2018, Mineralogical Society

    Roberta Oberti, Dr Milen Kadiyski

  4. Fluoro-tremolite from the Limecrest-Southdown quarry, Sparta, NJ, USA: crystal chemistry of a newly approved end-members of the amphibole supergroup

    Article • Mineralogical Magazine, February 2018, Mineralogical Society

    Roberta Oberti, Professor Fernando Camara

  5. Clino-suenoite, a newly approved magnesium-iron-manganese amphibole from Valmalenco, Sondrio, Italy

    Article • Mineralogical Magazine, February 2018, Mineralogical Society

    Roberta Oberti

  6. The crystal chemistry of oxo-mangani-leakeite and mangano-mangani-ungarettiite from the Hoskins mine and their impossible solid-solution: An XRD and FTIR study

    Article • Mineralogical Magazine, June 2017, Mineralogical Society

    Roberta Oberti

  7. Ferri-obertiite from the Rothenberg quarry, Eifel volcanic complex, Germany: mineral data and crystal chemistry of a new amphibole end-member

    Article • Mineralogical Magazine, May 2017, Mineralogical Society

    Roberta Oberti

  8. Magnesio-riebeckite from the Varenche mine (Aosta Valley, Italy): crystal-chemical characterization of a grandfathered end-member

    Article • Mineralogical Magazine, January 2017, Mineralogical Society

    Roberta Oberti

  9. Ferro-ferri-hornblende from the Traversella mine (Ivrea, Italy): occurrence, mineral description and crystal-chemistry

    Article • Mineralogical Magazine, December 2016, Mineralogical Society

    Professor Fernando Camara, Roberta Oberti

  10. Oxo-mangani-leakeite from the Hoskins mine, New South Wales, Australia: occurrence and mineral description

    Article • Mineralogical Magazine, October 2016, Mineralogical Society

    Roberta Oberti

  11. Magnesio-ferri-fluoro-hornblende from Portoscuso, Sardinia, Italy: description of a newly approved member of the amphibole supergroup

    Article • Mineralogical Magazine, April 2016, Mineralogical Society

    Roberta Oberti

  12. Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar--crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite

    Article • American Mineralogist, April 2015, GeoScienceWorld

    Roberta Oberti

  13. Magnesio-arfvedsonite from Jade Mine Tract, Myanmar: mineral description and crystal chemistry

    Article • Mineralogical Magazine, April 2015, Mineralogical Society

    Roberta Oberti

  14. Katophorite from the Jade Mine Tract, Myanmar: mineral description of a rare (grandfathered) endmember of the amphibole supergroup

    Article • Mineralogical Magazine, April 2015, Mineralogical Society

    Roberta Oberti

  15. Ferri-fluoro-leakeite: a second occurrence at Bratthagen (Norway), with new data on Zn partitioning and the oxo component in Na amphiboles

    Article • Mineralogical Magazine, August 2014, Mineralogical Society

    Roberta Oberti

  16. Crystal structure and crystal chemistry of fluoro-potassic-magnesio-arfvedsonite from Monte Metocha, Xixano region, Mozambique, and discussion of the holotype from Quebec, Canada

    Article • Mineralogical Magazine, December 2010, Mineralogical Society

    Roberta Oberti