1. Yellow diamonds with colourless cores – evidence for episodic diamond growth beneath Chidliak and the Ekati Mine, Canada

   • Mei Yan Lai
   • Thomas Stachel
   • Richard A. Stern

   Original Paper 14 January 2020 Pages: 91 - 103

   

2. Intragranular deformation mechanisms in calcite deformed by high-pressure torsion at room temperature

   • Roman Schuster
   • Gerlinde Habler
   • Rainer Abart

   Original Paper Open access 07 January 2020 Pages: 105 - 118

   

3. Ba- and Ti-rich oxymica from nephelinites in the Middle Atlas Volcanic Province, northern Morocco

   • Kawtar Lakroud
   • Toufik Remmal
   • Hélène Balcone-Boissard

   Short Communication 14 December 2019 Pages: 119 - 128

   

4. Zinc-rich and copper-bearing amphiboles from sulfide-free ore occurrences of the Pelagonian Massif, Republic of North Macedonia

   • Nikita V. Chukanov
   • Natalia V. Zubkova
   • Sergey N. Britvin

   Original Paper 25 January 2020 Pages: 129 - 140

   

5. Multi-stage metasomatism of lithospheric mantle by asthenosphere-derived melts: evidence from mantle xenoliths in daxizhuang at the eastern North China craton

   • XinMiao Zhao
   • Hui Wang
   • HongFu Zhang

   Original Paper 25 January 2020 Pages: 141 - 159