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Kristiansenite

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Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway
© Knut Eldjarn

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Formula:
Ca
 
2
ScSn(Si
 
2
O
 
7
)(Si
 
2
O
 
6
OH)
System:TriclinicColour:White or pale yellowish
Name:Named after Roy Kristiansen who first observed the new mineral.
This page provides mineralogical data about Kristiansenite.

Classification of Kristiansenite

IMA status:Approved 2000
Strunz 9th edition ID:9.BC.30
Nickel-Strunz 10th (pending) edition ID:9.BC.30

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

Type Locality:Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway

Physical Properties of Kristiansenite

Colour:White or pale yellowish

Crystallography of Kristiansenite

Crystal System:Triclinic
Class (H-M):1 - Pedial
Comment:space group C1

Chemical Properties of Kristiansenite

Formula:
Ca
 
2
ScSn(Si
 
2
O
 
7
)(Si
 
2
O
 
6
OH)
Essential elements:Ca, H, O, Sc, Si, Sn
All elements listed in formula:Ca, H, O, Sc, Si, Sn

Relationship of Kristiansenite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.BC.05Gittinsite
CaZr[Si
 
2
O
 
7
]
9.BC.05Keiviite-(Y)
(Y,Yb)
 
2
[Si
 
2
O
 
7
]
9.BC.05Keiviite-(Yb)
(Yb,Y)
 
2
[Si
 
2
O
 
7
]
9.BC.05Thortveitite
(Sc,Y)
 
2
[Si
 
2
O
 
7
]
9.BC.05Yttrialite-(Y)
(Y,Th)
 
2
[Si
 
2
O
 
7
]
9.BC.10Keldyshite
(Na,H)
 
2
ZrSi
 
2
O
 
7
9.BC.10Khibinskite
K
 
2
ZrSi
 
2
O
 
7
9.BC.10Parakeldyshite
Na
 
2
ZrSi
 
2
O
 
7
9.BC.15Rankinite
Ca
 
3
Si
 
2
O
 
7
9.BC.20Barysilite
Pb
 
8
Mn
2+
 
[Si
 
2
O
 
7
]
 
3
9.BC.25Edgarbaileyite
(Hg-Hg)
 
3
[Si
 
2
O
 
7
]
9.BC.35Percleveite-(Ce)
(Ce,La,Nd)
 
2
[Si
 
2
O
 
7
]

Other Names for Kristiansenite

Synonyms:
IMA2000-051
Other Languages:
German:Kristiansenit
Spanish:Kristiansenita

Other Information

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

References for Kristiansenite

Reference List:Zeitschrift für Kristallographie (2001): 216: 442-448.

Mineralogy and Petrology (2002): 75(1/2), 89-99.

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 Kristiansenite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Kristiansenite in the Natural History Museum (London) online catalogue
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    Localities for Kristiansenite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Baveno
          • Oltrefiume
            • Mount Camoscio
    		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
     
    • Telemark
      • Drangedal
        • Tørdal
    		Raade et al.2002: Zeit. Krist 216 (2001), 442; Mineral. Petrol. 75 (2002), 89
    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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