Mineralogy Database

Sorensenite Mineral Data

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General Sorensenite Information

Help on Chemical  Formula: Chemical Formula: Na4SnBe2Si6O18•2(H2O)
Help on Composition: Composition: Molecular Weight = 721.23 gm
   Sodium     12.75 %  Na   17.19 % Na2O
   Beryllium   2.50 %  Be    6.94 % BeO
   Silicon    23.36 %  Si   49.99 % SiO2
   Tin        16.46 %  Sn   20.90 % SnO2
   Hydrogen    0.56 %  H     5.00 % H2O
   Oxygen     44.37 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4SnBe2Si6O18•2(H2O)
Help on Environment: Environment: Nepheline syenite.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Nakalaq in the Ilimaussaq intrusion complex, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Henning Sorensen (1926-), emeritus professor, Hakkaido University, Sapporo.
Help on Name Pronunciation: Name Pronunciation: Sorensenite + Pronunciation Say SORENSENITE
Help on Synonym: Synonym: ICSD 34071
  PDF 29-1178

Sorensenite Image

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Comments: Translucent white prismatic sorensenite crystals and crystalline in dark aegirine.
Location: Kvanefjeld, Ilimaussaq, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Lght pink, prismatic crystals of sorensite to 5mm in dark green aegerine matrix.
Location: Kvanefjeld, Ilimaussaq, Greenland. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Sorensenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.7887:1:1.6218
Help on Cell Dimensions: Cell Dimensions: a = 20.698, b = 7.422, c = 12.037, Z = 4; beta = 117.28° V = 1,643.47 Den(Calc)= 2.91
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.918(1), 2.96(0.85), 3.41(0.85),

Physical Properties of Sorensenite

Help on Cleavage: Cleavage: {???} Distinct, {???} Distinct
Help on Color: Color: Colorless, Pinkish, Milky white.
Help on Density: Density: 2.9
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luminescence: Luminescence: Fluorescent, Long UV=blue white white.
Help on Luster: Luster: Vitreous - Silky
Help on Streak: Streak: white

Optical Properties of Sorensenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1999,KPDmeas= 0.2006,KC= 0.2001
Ncalc = 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.576-1.579, b=1.581-1.585, g=1.584-1.586, bire=0.0070-0.0080
Help on Pleochroism (x): Pleochroism (x): anomalous yellow brown.
Help on Pleochroism (y): Pleochroism (y): anomalous yellow brown.
Help on Pleochroism (z): Pleochroism (z): anomalous blue.

Calculated Properties of Sorensenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.82 gm/cc
note: Specific Gravity of Sorensenite =2.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PESorensenite = 47.86 barns/electron
U=PESorensenite x rElectron Density= 135.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sorensenite is Not Radioactive

Sorensenite Classification

Help on  Dana Class: Dana Class: (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.02)with chains P=3
  (65.02.04)Dana Group Sorensenite Na4SnBe2Si6O18•2(H2O) C 2/c 2/m
Help on  Strunz Class: Strunz Class: 09.DG.30 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DG -Inosilicates with 3-periodic single and multiple chains
09.DG.30 Sorensenite Na4SnBe2Si6O18•2(H2O) C 2/c 2/m

Other Sorensenite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8;Collectors Book of Fluorescent Minerals) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Sorensenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 09.DG.30





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