Albite-Anorthite Series from selected localities.
||Brickwood, J. D. (1986): The geology and mineralogy of some Fe-Cu-Ni sulphide deposits in the Bamble area, Norway. Norsk Geologisk Tidsskrift. 66, 189-208|
||Visser, D., Thijissen, P.H.M. & Schumacher J.C.(1992) Högbomite in sapphirine-bearing rocks from the Bamble Sector, south Norway. Mineralogical Magazine 56: 343-351|