Roy Kristiansen

OFTEDALITE, (Sc,Ca,Mn2+)2 K (Be,Al)3 Si12 O30, A NEW MEMBER OF THE MILARITE GROUP FROM THE HEFTETJERN PEGMATITE, TORDAL, NORWAY: DESCRIPTION AND CRYSTAL STRUCTURE

M. A. Cooper, F. C. Hawthorne, N. A. Ball et al. · The Canadian Mineralogist · 2006 · 25 citations

Rare Earth Mineral, Crystal Structure, Engineering +18

Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, Tordal, Norway

Uwe Kolitsch, Roy Kristiansen, Gunnar Raade · European Journal of Mineralogy · 2010 · 22 citations

Aspedamite, Ideally  12(Fe3+, Fe2+)3Nb4[Th(Nb,Fe3+)12O42] 12, a New Heteropolyniobate Mineral Species from the Herrebokasa Guarry, Aspedammen, Ostfold, Southern Norway: Description and Crystal Structure

Matthew A. Cooper, Y. A. Abdu, Neil A. Ball et al. · The Canadian Mineralogist · 2012 · 17 citations

Materials Science, Inorganic Chemistry, Crystal Structure +11

Triclinic titanite from the Heftetjern granitic pegmatite, Tørdal, southern Norway

Aaron J. Lussier, Mark A. Cooper, F. C. Hawthorne et al. · Mineralogical Magazine · 2009 · 13 citations

Crystal Structure, Engineering, Chemistry +16

MINERALS OF THE SCHOENFLIESITE- WICKMANITE SERIES FROM PITKARANTA, KARELIA, U.S.S.R.

Evgeny Nefedov, William L. Griffin, Roy Kristiansen · The Canadian Mineralogist · 1977 · 13 citations

Materials Science, Rare Earth Mineral, Engineering +13