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Sørensenite

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Henning Sørensen
Formula:
Na4SnBe2Si6O16(OH)4
Colour:
Colourless to pink, milky white (altered); colourless in transmitted light
Lustre:
Silky
Hardness:
Specific Gravity:
2.9
Crystal System:
Monoclinic
Name:
Named after Henning Sørensen [b. April 20, 1926 Frederiksberg, Denmark], mineralogist and petrographer, Professor of Geology, University of Copenhagen (Denmark).
This page provides mineralogical data about Sørensenite.


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Classification of SørenseniteHide

Approved
Approval Year:
1965
9.DG.30

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
65.2.4.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
2 : Single-Width Unbranched Chains, W=1 with chains P=3
14.3.16

14 : Silicates not Containing Aluminum
3 : Silicates of Be

Physical Properties of SørenseniteHide

Silky
Transparency:
Transparent
Colour:
Colourless to pink, milky white (altered); colourless in transmitted light
Streak:
White
Hardness:
5½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
On {101¯} and {100}.
Density:
2.9 g/cm3 (Measured)    2.92 g/cm3 (Calculated)

Optical Data of SørenseniteHide

Type:
Biaxial (-)
RI values:
nα = 1.576 - 1.579 nβ = 1.581 - 1.585 nγ = 1.584 - 1.586
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
very weak

Chemical Properties of SørenseniteHide

Formula:
Na4SnBe2Si6O16(OH)4
IMA Formula:
Na4Be2Sn(Si3O9)2 · 2H2O

Crystallography of SørenseniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 20.698 Å, b = 7.442 Å, c = 12.037 Å
β = 117.28°
Ratio:
a:b:c = 2.781 : 1 : 1.617
Unit Cell V:
1,647.89 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals lath-shaped to acicular parallel to [010]. Forms fan-like and bowtie aggregates by branching from the base of the crystals.
Twinning:
Complex and uncommon. Twin axis is perpendicular to [011] in {100}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.918 (100)
3.41 (85)
2.960 (85)
3.06 (75)
6.31 (60)
2.837 (50)
2.676 (50)
Comments:
On material from Nákâlâq, Greenland.

Type Occurrence of SørenseniteHide

Geological Setting of Type Material:
Miarolitic cavities in hydrothermal vents cutting coarse-grained nepheline syenites.

Synonyms of SørenseniteHide

Other Language Names for SørenseniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Analcime6 photos of Sørensenite associated with Analcime on mindat.org.
Aegirine4 photos of Sørensenite associated with Aegirine on mindat.org.
Fluorapatite2 photos of Sørensenite associated with Fluorapatite on mindat.org.
Apatite1 photo of Sørensenite associated with Apatite on mindat.org.
Albite1 photo of Sørensenite associated with Albite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric.
9.DG.05PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCaSiO3Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric.
9.DG.07CascanditeCa(Sc,Fe3+)(HSi3O9)Tric.
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)Orth.
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Mon.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)Orth.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric.
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric.
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth.
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth.
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric.
9.DG.70LitidioniteCuNaKSi4O10Tric.
9.DG.70ManaksiteKNaMnSi4O10Tric.
9.DG.75TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2Ti[O|Si7O18(OH)]Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2OMon. m : Bm
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric.
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Orth.
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14Mon. 2/m : P2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.3.1PhenakiteBe2SiO4Trig. 3 : R3
14.3.2BertranditeBe4(Si2O7)(OH)2Orth. mm2 : Cmc21
14.3.3BerylliteBe3(SiO4)(OH)2 · H2OOrth.
14.3.4LiberiteLi2BeSiO4Mon. m : Pm
14.3.5ChkaloviteNa2BeSi2O6Orth. mm2 : Fdd2
14.3.6EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
14.3.7EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
14.3.8GugiaiteCa2Be(Si2O7)Tet.
14.3.9Jeffreyite(Ca,Na)2(Be,Al)(Si2O7,HSi2O7)Orth.
14.3.10Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4Orth. mmm (2/m 2/m 2/m)
14.3.11BaryliteBe2Ba(Si2O7)Orth.
14.3.12Hingganite-(Ce)(Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
14.3.13Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
14.3.14Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
14.3.15Minasgeraisite-(Y)CaBe2Y2Si2O10Mon. 2/m : P21/b
14.3.17TrimeriteCaMn2+2Be3(SiO4)3Mon. 2/m : P21/m
14.3.18ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2OMon. 2/m : P21/b
14.3.19Tvedalite(Ca,Mn)4Be3Si6O17(OH)4 · 3H2OOrth.
14.3.20HarstigiteCa6(Mn,Mg)Be4Si6(O,OH)24Orth.
14.3.21SverigeiteNaMnMgSnBe2(SiO4)3(OH)Orth. mmm (2/m 2/m 2/m) : Imma
14.3.22Joesmithite{Pb}{Ca2}{Mg3Fe3+2}(Be2Si6O22)(OH)2Mon.
14.3.23Gadolinite-(Y)Y2Fe2+Be2Si2O10Mon. 2/m : P21/b
14.3.24Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10Mon. 2/m
14.3.25Calciogadolinite-(Y)(YCa)2Fe3+Be2[SiO4]2O2

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 SørenseniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Semenov, E.I., Gerasimovskii, V.I., Maksimova, N.V., Andersen, S., and Petersen, O.V. (1965) Sorensenite, a new sodium-beryllium-tin-silicate fronm the Ilímausssaq intrusion, South Greenland. Meddelelser om Grønland: 181(1): 1-19.
American Mineralogist (1966): 51: 1547-1548.
American Mineralogist (1967): 52: 928.
Metcalf-Johansen, J. and Hazell, R.G. (1976) The crystal structure of sorensenite, Na4SnBe2(Si3O9)2·2H2O. Acta Crystallographica: B32: 2553-2556.

Internet Links for SørenseniteHide

Localities for SørenseniteHide

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.
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
Meddr Gronland,(1965) 181, 1, 1-19
Cole, M. (2003): Fluorescent Minerals of the Ilimaussaq Complex, Greenland, MinerShop 2003
Petersen, O. V. & Johnsen, O. (2005): Mineral species first described from Greenland. Canadian Mineralogist, Special publication no. 8.
Reiner Mielke specimen and photo ( collected by Charles Gould)
        • Taseq area
Semenov E I, Gerassimovsky V I, Maksimova N V, Andersen S, Petersen O V (1965) Sorensenite, new sodium-beryllium-tin-silicate from the Ilímaussaq intrusion, South Greenland. Meddelelser om Grønland 181, 1-19
No reference listed
Mineral and/or Locality  
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