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Kristiansenite

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Roy Kristiansen
Formula:
Ca2ScSn(Si2O7)(Si2O6OH)
Colour:
Colorless, white, or slightly yellowish
Lustre:
Vitreous
Hardness:
5½ - 6
Specific Gravity:
3.64 (Calculated)
Crystal System:
Triclinic
Name:
Named after Roy Kristiansen (1943, Fredrikstad, Norway - ), amateur mineralogist from Sellebakk, Norway who first observed the new mineral. He has coauthored on seven new mineral descriptions.
This page provides mineralogical data about Kristiansenite.


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Classification of KristianseniteHide

Approved
Approval Year:
2000
First Published:
2001
9.BC.30

9 : SILICATES (Germanates)
B : Sorosilicates
C : Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination

Physical Properties of KristianseniteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white, or slightly yellowish
Streak:
white
Hardness:
5½ - 6 on Mohs scale
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
3.64 g/cm3 (Calculated)

Chemical Properties of KristianseniteHide

Formula:
Ca2ScSn(Si2O7)(Si2O6OH)

Crystallography of KristianseniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Cell Parameters:
a = 10.007(5) Å, b = 8.401(5) Å, c = 13.327(5) Å
α = 90.08°, β = 109.06°, γ = 90.01°
Ratio:
a:b:c = 1.191 : 1 : 1.586
Unit Cell V:
1,058.96 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Tapered crystals, to 2 mm, and as aggregates to 2 mm across. Sometimes as colorless grains in spessartine
Twinning:
polysynthetic twinning on {010}
Comment:
space group C1

Type Occurrence of KristianseniteHide

General Appearance of Type Material:
Tapered crystals and aggregates
Place of Conservation of Type Material:
Geological Museum, University of Oslo, Norway
Geological Setting of Type Material:
Late stage hydrothermal vugs in an amazonite pegmatite
Associated Minerals at Type Locality:

Synonyms of KristianseniteHide

Other Language Names for KristianseniteHide

Simplified Chinese:硅锡钪钙石
Traditional Chinese:矽錫鈧鈣石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Scandiobabingtonite3 photos of Kristiansenite associated with Scandiobabingtonite on mindat.org.
Cascandite2 photos of Kristiansenite associated with Cascandite on mindat.org.
Fluorite2 photos of Kristiansenite associated with Fluorite on mindat.org.
Albite1 photo of Kristiansenite associated with Albite on mindat.org.
Stilpnomelane1 photo of Kristiansenite associated with Stilpnomelane on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.BC.05GittinsiteCaZrSi2O7Mon.
9.BC.05Keiviite-(Y)Y2Si2O7
9.BC.05Keiviite-(Yb)Yb2Si2O7Mon. 2/m : B2/m
9.BC.05ThortveititeSc2Si2O7Mon.
9.BC.05Yttrialite-(Y)(Y,Th)2Si2O7
9.BC.10Keldyshite(Na,H)2ZrSi2O7Tric. 1 : P1
9.BC.10KhibinskiteK2ZrSi2O7Mon.
9.BC.10ParakeldyshiteNa2ZrSi2O7Tric.
9.BC.15RankiniteCa3Si2O7Mon. 2/m : P21/b
9.BC.20BarysilitePb8Mn2+[Si2O7]3Trig.
9.BC.25Edgarbaileyite(Hg-Hg)3Si2O7Mon.
9.BC.35Percleveite-(Ce)(Ce,La,Nd)2Si2O7Tet. 4

Fluorescence of KristianseniteHide

Nonfluorescent

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for KristianseniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
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(1/2): 89-99.
Jambor, J.L., Roberts, A.C. (2003) New mineral names. American Mineralogist: 88: 251-255.
Mandarino, J.A. (2003) New minerals. The Canadian Mineralogist: 41: 803-828.
Menor Salván, C., Prado Herrero, P. (2009) First find of Kristiansenite in Spain: Comparison with the type specimen by non-descriptive techniques. Estudos Geológicos: 19(2): 135-139.

Internet Links for KristianseniteHide

Localities for KristianseniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • Vysočina Region
      • Třebíč
        • Kožichovice
Výravský, J, Škoda, R. & Novak, M. (2017) Kristiansenite, thortveitite and SCNbO4: Products of Ca-metasomatism of Sc-enriched columbite-(Mn) from NYF pegmatite Kožichovice II, Czech Republic. PEG2017. NGF Abstracts and Proceedings, 2017 (2): 169-172.
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Baveno
        • Feriolo
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.
        • Oltrefiume
          • Mount Camoscio
Grill, E. (1935): I minerali del granito di Baveno, la fayalite. Periodico di Mineralogia, 129-133. - Gallitelli, P. (1936): Le miche del granito di Baveno. . Periodico di Mineralogia, 61-76 - Pagliani, G. (1948): Le Zeoliti del granito di Baveno. Periodico di Mineralogia, 175-188. - Ravagnani, D. (1974): I giacimenti uraniferi italiani - Gruppo Mineralogico Lombardo - Museo Civico di Storia Naturale di Milano, Ed., Milano, 188 pp. - min. Rec. 14 (3), 157-168 - Am. Min. 83, 1330-1334 (1998) - Am. Min. 84, 782-789 (1999). - Guastoni, A. & Pezzotta, F. (2004): Kristiansenite a Baveno, second ritrovamento Mondiale della specie. Rivista Mineralogica Italiana, 4/2004, 247-251. - Guastoni, A., Demartin, F., Pezzotta, F. (2004): Sekaninaite delle pegmatiti granitiche di Feriolo e Baveno (VB). Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano, 145, 59-68. - Mineralogist americano (2005) 90, 1442-1452.
Sergio Varvello personal communication (2004) - Marco E. Ciriotti; Guastoni A., Pezzotta F., 2004. Kristiansenite a Baveno, secondo ritrovamento mondiale della specie. Riv. Mineral. Ital., 28, 4: 247-251
Norway (TL)
 
  • Telemark
    • Drangedal
      • Tørdal
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. ; 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(1/2), 89-99.
Spain
 
  • Madrid
Prado-Herrero, P. et al. (2009): First find of Kristiansenite in Spain: Comparison with the type specimen by non-descreptive techniques. Estudos Geológicos 19 (2): 135-139
Mineral and/or Locality  
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