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Kvanefjeldite

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About KvanefjelditeHide

Formula:
Na4(Ca,Mn)(Si3O7)2(OH)2
Colour:
Pink with a distinct violet hue
Lustre:
Vitreous
Hardness:
5½ - 6
Specific Gravity:
2.55
Crystal System:
Orthorhombic
Name:
Named after the type locality, Kvanefjeld mountain, Greenland.
This page provides mineralogical data about Kvanefjeldite.


Classification of KvanefjelditeHide

Approved
First Published:
1984
9.DP.30

9 : SILICATES (Germanates)
D : Inosilicates
P : Transitional ino-phyllosilicate structures
72.5.3.1

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
5 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with corrugated and complex layers
14.18.28

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe

Physical Properties of KvanefjelditeHide

Vitreous
Transparency:
Transparent
Comment:
almost pearly on the {010} cleavage
Colour:
Pink with a distinct violet hue
Hardness:
5½ - 6 on Mohs scale
Cleavage:
Distinct/Good
Density:
2.55 g/cm3 (Measured)    2.53 g/cm3 (Calculated)

Optical Data of KvanefjelditeHide

Type:
Biaxial (+)
RI values:
nα = 1.522 nβ = 1.522 nγ = 1.543
Max Birefringence:
δ = 0.021
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r < v distinct

Chemical Properties of KvanefjelditeHide

Formula:
Na4(Ca,Mn)(Si3O7)2(OH)2
IMA Formula:
Na4CaSi6O14(OH)2
Common Impurities:
Ti,Al,Y,Fe,Mg,K

Crystallography of KvanefjelditeHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 10.21 Å, b = 15.87 Å, c = 9.05 Å
Ratio:
a:b:c = 0.643 : 1 : 0.57
Unit Cell V:
1,466.40 ų (Calculated from Unit Cell)
Z:
4

Type Occurrence of KvanefjelditeHide

General Appearance of Type Material:
Streaks and veinlets
Place of Conservation of Type Material:
Geological Museum, University of Copenhagen, Denmark
Geological Setting of Type Material:
Alkaline intrusive complex
Reference:
Petersen, O.V., Johnsen, O., Leonardsen, E.S., Rønsbo, J.G. (1984) Kvanefjeldite, a new mineral species from the Ilímaussaq Alkaline Complex, southwest Greenland. The Canadian Mineralogist: 22: 465-467.

Synonyms of KvanefjelditeHide

Other Language Names for KvanefjelditeHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Villiaumite1 photo of Kvanefjeldite associated with Villiaumite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DP.05Meliphanite(Ca,Na)2(Be,Al)[Si2O6(OH,F)]Tet. 4 : I4
9.DP.15LeucospheniteBaNa4Ti2B2Si10O30Mon.
9.DP.20PrehniteCa2Al2Si3O10(OH)2Orth. mm2
9.DP.25AmstalliteCaAl(Si,Al)4O8(OH)4 · (H2O,Cl)Mon. 2/m : B2/b
9.DP.35Lemoynite(Na,K)2CaZr2Si10O26 · 5H2OMon. 2/m : B2/b
9.DP.35NatrolemoyniteNa4Zr2Si10O26•9H2OMon. 2/m : B2/m
9.DP.40AltisiteNa3K6Ti2Al2Si8O26Cl3Mon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.18.1NambuliteLiMn2+4Si5O14(OH)Tric.
14.18.2Natronambulite(Na,Li)(Mn,Ca)4Si5O14OHTric.
14.18.3ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
14.18.4NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
14.18.5Shafranovskite(Na,K)6(Mn,Fe)3Si9O24 · 6H2OTrig.
14.18.6AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.7Donpeacorite(Mn2+,Mg)Mg[SiO3]2Orth.
14.18.8KanoiteMn2+(Mg,Mn2+)Si2O6Mon. 2/m : P21/b
14.18.9CaryopiliteMn2+3Si2O5(OH)4Mon.
14.18.10Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
14.18.11Tirodite
14.18.12Manganhumite(Mn2+,Mg)7(SiO4)3(OH)2Orth.
14.18.13BustamiteCaMn2+(Si2O6)Tric. 1 : P1
14.18.14GlaucochroiteCaMn2+SiO4Orth.
14.18.15Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
14.18.16SantaclaraiteCaMn4[Si5O14OH](OH) · H2OTric.
14.18.17FerrobustamiteCaFe2+(Si2O6)Tric.
14.18.18JohannseniteCaMn2+Si2O6Mon. 2/m : B2/b
14.18.19NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
14.18.20OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
14.18.21InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2OTric. 1 : P1
14.18.22OrientiteCa8Mn3+10(SiO4)3(Si3O10)3(OH)10 · 4H2O Orth.
14.18.23RuiziteCa2Mn3+2[Si4O11(OH)2](OH)2·2H2OMon. 2
14.18.24BostwickiteCaMn6Si3O16 · 7H2OOrth.
14.18.25KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
14.18.26LithiomarsturiteLiCa2Mn2Si5O14(OH)Tric.
14.18.27SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
14.18.29MarsturiteNaCaMn3Si5O14(OH)Tric. 1 : P1
14.18.30RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
14.18.31Richterite{Na}{NaCa}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
14.18.32Byelorussite-(Ce)NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O
14.18.33Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5Mon.
14.18.34Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3Iso.
14.18.35PyroxmangiteMnSiO3Tric. 1
14.18.36Dannemorite☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2
14.18.37Neotocite(Mn,Fe,Mg)SiO3 · H2OAmor.
14.18.38BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)Tric. 1 : P1
14.18.39ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)Tric.
14.18.40ÖrebroiteMn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3Hex.

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 KvanefjelditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Johnsen, O., Leonardsen, E.S., Faelth, L., Annehed, H. (1983) Crystal structure of kvanefjeldite: The introduction of 2(Si3O7OH) layers with eight-membered rings. Neues Jahrbuch für Mineralogie, Monatshefte: 1983: 505-512.
Petersen, O.V., Johnsen, O., Leonardsen, E.S., Rønsbo, J.G. (1984) Kvanefjeldite, a new mineral species from the Ilímaussaq Alkaline Complex, southwest Greenland. The Canadian Mineralogist: 22: 465-467.
Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 871-881.

Internet Links for KvanefjelditeHide

Localities for KvanefjelditeHide

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.
Denmark
 
  • Greenland
    • Kujalleq
      • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
          • Kuannersuit Plateau (Kvanefjeld)
            • Kvanefjeld Uranium deposit
              • Kvanefjeld adit
Peterson, O., Johnson, O. Leonardsen, E., Roensbo, J. (1984): Kvanefjeldite a new mineral species from the Ilimaussaq alkaline complex, South West Greenland, Canadian Mineralogist, Vol. 22, 465-467
Mineral and/or Locality  
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