Det Kongelige Selskap Norges Vel:
In  december 2002 I was honoured with a medal from Det Kongelige Selskap Norges Vel for 30 years of long and faithful service to our company : Unger Fabrikker AS, Fredrikstad , Norway.

Kongsberg mineral symposium:
A special designed necklace with a Palladium-covered chain with a symbol in Scandium-metal awarded at the Kongsberg mineral symposium.

  Canadian Micromineral association. A tribute to Roy Kristiansen. CMMA 42 (2): 3-4

  Andresen, P. (2008) : Kongsberg Mineralsymposium 2008. STEIN 35 (2), 26-27. PDF

Pinch medal 2009:

Awarded the Pinch medal 2009 as the first European and the 5th ever in the world  " In recognition of outstanding contribution to mineralogical sciences".
Read press release from
Mineralogical Association of Canada here.


Sørlie, T. (2009): Roy Kristiansen tildelt Pinchmedaljen.
STEIN 36 (1): 31 PDF

Grew, E.S. (2009): The Pinch medal for 2009 to Roy Kristiansen. Canadian Mineralogist. 47, 481-482. PDF

Grew, E.S. (2009): Pinch medal to Roy Kristiansen. Elements, 5 (1): 55. PDF

Huizing, M.E. (2009):
2009 Pinch medal presented, Roy Kristiansen. Rocks & Minerals, 84: 199

 Leybov, M. B. 2009. Tucson 2009: mineral oddities. Roy Kristiansen  ( Norway) is awarded for the 2009 Pinch medal. Mineralogical almanac. 14 (3): 53-58

STEIN Special Issue:

Special issue of the STEIN-magazine october 2013 on the occasion of my 70th birthday.
[The whole issue is available here: ]






“A hommage de Roy Kristiansen”

Early in the 1980-ties I was  very engaged in the variety of the true morels (Genus Morchella) in my surroundings, and was tributed in a French book on morels 1984: Les morilles by Emile Jacquetant , Perpignan.

Entoloma kristiansenii
, a new fungi from Norway:
In 1983 I found a small agaric  in a  swampy area in Skjærviken, Borge near Fredrikstad. It turn out to be a new species of the genus Entoloma (order Agaricales), and Dr.Machiel E.Noordeloos (the Netherlands) , - world leading expert on the Entolomataceae -, named it in honour of me: Entoloma kristiansenii Noord. (sect. Fernandae). [Later found also in Sweden].
Noordeloos, M.E.1987. Entoloma (Agaricales) in Europe.Beihefte zur Nova Hedwigia, 91, 419 pp

Lamprospora kristiansenii Benkert
, a new discomycete from Norway
n 1982 I become fascinated by the small colourful discomycetes (order Pezizales), among them  the bryophilous species,  parasitizing on different mosses
, belonging to the genera Lamprospora, Octospora and Neottiella.Dr. Dieter Benkert, formerly at the Alexander Humboldt Institut in Berlin, now retired from Freie Universität, have investigated a great  number of these species. One of the very first I found , close to the Hvaler church  (S of Fredrikstad),  turned out to be a new species of the genus Lamprospora ,which he named  Lamprospora kristiansenii Benkert  in my honour. It grows in the moss Ceratodon purpureus, and occur as  pinkish red disc-like fungi, < 2 mm in diam., but occurs often gregariously. The distribution is only restricted to some places in the Hvaler archipelago, with a few exceptions outside.
Benkert, D.1990. Zwei neue Arten der Gattung Lamprospora. Feddes Rept.,101: 631-637 .







Kristiansenite- a new Scandium-mineral  from Norway
Ca2ScSn (Si2O7) (Si2O6 OH)     (Raade et al. 2002) PDF

In May 1998 I visited the amazonitic pegmatites at Heftetjern, Tørdal in the county of Telemark, for the first time,-  actually to look for bazzite, a rare Scandium mineral I had not found myself.

2014 Presented in AGARICA
Weholt, Ø. (2014): Roy Kristiansen 70 år 6. oktober 2013. Agarica, 35, 2

2015 Presented in Who's Who in Mineral Names
Chamberlain, S. C.  Who's Who in Mineral Names: Roy Kristiansen (B.1943). Rocks & Minerals, 90 (jan-feb), 89-90



Historical benchmark in the discovery of kristiansenite.

6. mai 1998:  My first trip to Heftetjern. The first specimen found (H06/98), as yellowish grey prismatic crystals in vugs  together with cerian epidote and calcian hingganite-(Y).
June 1998:  An  x-ray diffractometer pattern  gave an unknown species, - not identical to any known mineral or synthetic compound.

18. August 1998:   The first EDS-SEM analysis done  in USA  showed a  Calcium-tin-scandium-tantalat, but it was unfortunately a wrong interpretation, which created some confusion and extra work.

12. Januar 1999:  Another analysis proved that the actual composition  was a  Calcium-tin-scandium-silicate.

19.Februar 1999:  Franz Bernhard  at the University of  Graz in Austria analysed greyish inclusions in cassiterite, which were identical to the Calcium-tin-scandium-silicate above with minor  iron  og aluminum .

Spring 1999: Curator Gunnar Raade asked me if I wanted him to describe the mineral because the mineral turned out to be new to science, and naturally I felt honoured and proud ! So he organized an co-operation with Prof.Giovanni Ferraris, at the University of  Torino , in Italy,  in order to solve the structure , and Dr.Franz Bernhard , Graz  to do the chemistry. 

So, by the middle of the year the work on the new mineral had started !

December 1999 The new mineral is mentioned officially for the first time in (but without a name):

    Raade, G. & Erambert, M.1999. An intergrowth of scandiobabingtonite and cascandite from the Heftetjern granite pegmatite, Norway.N.Jb.Miner.Mh.1999 (12): 545-550.

2000 : During the first stage of the crystal structure determination it was verified that the mineral possessed a complex  twinning , already postulated (theoretically) to occur in nature, consult  Nespolo & Ferraris 2000. Then  the very first presentation of kristiansenite came , but without a name !, and  introduced by: 

    Ferraris, G. et al.2000. Solving the structure of a new Ca-Sc-Sn disilicate twinnned by metric merohedry. International Crystallographical  Congress, Nancy , August 2000.

 The next step was a preliminary presentation  of  the mineralogy of the Heftetjern pegmatite in Tørdal, Telemark county during the annual Kongsberg Mineral symposium 2000:

      Raade, G. & Kristiansen, R. (2000a): Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrifter. 17, 19-25.

October-November 2000: All necesssary data is now ready to be submitted to the Commission  for New Minerals and Mineral names/ IMA, and the proposed name is kristiansenite .

  A pdf- copy of an e-mail from Giovanni Ferraris of  22.11.2000 can be read here.

December 2000: G. Raade  travels to Australia to attend the Mineralogy & Museums 4th/IMA , where he had a speech on  the Sc-minerals at Heftetjern, and also invited people to a possible Sc-symposium in Oslo  2003:

  Raade, G. & Kristiansen, R. (2000b): Scandium enrichment in the Heftetjern granite pegmatite, Telemark, Norway. 4th International Mineralogy in Museums Conference, Melbourne, Australia, p. 83.

2001:  Result of the vote by the Commission members received  February 2001. Voting results : 22- 0 – 0   for kristiansenite.

Spring 2001: comes the official list of approved new minerals 2000, but without names.
                           IMA No. 2000-051  (Kristiansenite)
                           Ca2ScSn(Si2O7)(Si2O6OH) (Unique structure)

                           Triclinic: C1

10.028, b 8.408, c 13.339 Å, a 90.01, b 109.10, g 90.00°
                          Colourless to white; vitreous; transparent to translucent

                          5.18(53), 3.146(100), 3.089(63), 2.901(19), 2.595(34), 2.142(17)

This was the available data before the description

7.April 2001  PROPOSAL TO ARRANGE:  An international symposium on the mineralogy and geochemistry of scandium

The description of another new scandium mineral, kristiansenite [Ca2ScSn(Si2O7)(Si2O6OH)] is now in print (2001). It was found in a granite pegmatite at Heftetjern, Tørdal, Telemark, Norway, and is named for Roy Kristiansen who first observed the new mineral.

Mr. Kristiansen has suggested that it would be fitting to arrange an international symposium in Norway in 2003 on the mineralogy and geochemistry of scandium. There are several good reasons for this topic, place and date. Medio august 2001 the crystal structure  of kristiansenite appeared  in a very advanced paper : 

      Ferraris, G., Gula, A., Ivaldi, G., Nespolo, M. & Raade, G. (2001): Crystal structure of kristiansenite: a case of class IIB twinning by metric merohedry. Zeitschrift für Kristallographie. 216, 442-448.

November 2001 another abstract on the twinning appear in:

Nespolo, M., Ferraris, G., Gula, A., Ivaldi, G. & Raade, G. (2001): Unusual merohedrictwinning in kristiansenite. Progr. and Abstr., Ann. meeting, Miner. Soc. Japan, Akita, p. 154 (in Japanese with English abstr.).


   Ellingsen, H.V. & Haugen, A. (2002): Kristiansenitt – et nytt mineral fra Tørdal. STEIN, 29 (1), 32-34 (in Norw.)

    Olsen, B.2002. Han finner fjell. De små tingenes herre   (”Master of the small objects”) Fredrikstad Blad  8.September 2002  [Interview about kristiansenite,  fungi and the visit of the philosopher Arne Næss}.

Final publication:  

  Raade, G., Ferraris, G., Gula, A., Ivaldi, G. & Bernhard, F. (2002): Kristiansenite, a new calcium-scandium-tin sorosilicate from granite pegmatite in Tørdal, Telemark, Norway. Mineralogy and Petrology, 75, 89-99   PDF


  Ferraris, G., Raade, G., Gula, A. & Ivaldi, G. (2003): Incorporation of scandium and other structural aspects in kristiansenite. International symposium on the mineralogy and geochemistry of Scandium, University of Oslo, Abstracts and Proceedings no. 2, 16-17.

2004   Additional publications:

  Nespolo, M. 2004.Twin point groups and the polychromatic symmetry of twins. Z. Kristallogr., 219:57-71  (kristiansenite).
  Nespolo,M.& Ferraris,G. 2004.Applied geminography-symmetry analysis of twinned crystals and definition of twinning by reticular polyholohedry. Acta Cryst., A60: 89-95  (kristiansenite)
  Raade,G., Bernhard,F. & Ottolini,L. 2004. Replacement textures involving four scandium silicate minerals in the Heftetjern granitic pegmatite, Norway.  Eur.J-Miner., 16 , 945-950 
  Guastoni,A.,  & Pezzotta, F. 2004.Kristiansenite a Baveno, secondo ritrovamento mondiale della specie. Riv.Miner.Ital, 28 (4) : 247-251  
  Ferraris, G., Makovickyy, E. & Merlino, S. 2004. Crystallography of Modular materials. Oxford Univ. Press, 370 pp. (kristiansenite)