Nosean Mineral Data

Nosean Mineral Data +

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General Nosean Information

Chemical Formula:

Na8Al6Si6O24(SO4)

Composition:

Molecular Weight = 1,012.38 gm

Sodium 18.17 % Na 24.49 % Na₂O

Aluminum 15.99 % Al 30.21 % Al₂O₃

Silicon 16.65 % Si 35.61 % SiO₂

Hydrogen 0.20 % H 1.78 % H₂O

Sulfur 3.17 % S 7.91 % SO₃

Oxygen 45.83 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₈Al₆Si₆O₂₄(SO₄)·(H₂O)

Environment:

Igneous rocks low in silica and rich in alkalis.

IMA Status:

Valid Species (Pre-IMA) 1815

Locality:

Laacher See in the Eifel district of Rhineland. Link to MinDat.org Location Data.

Name Origin:

Named after the German mineralogist, K. W. Nose (1753-1835).

Synonym:

ICSD 203102

Noselite

PDF 17-538

Nosean Image

Images:

Nosean

Comments: Stubby crystal of nosean on matrix.
Location: Mendig, Laacher See, Rhineland-Pal., Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Nosean Crystallography

Cell Dimensions:

a = 8.85, Z = 1; V = 693.15 Den(Calc)= 2.43

Crystal System:

Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: P 43m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.71(1), 2.628(0.75), 6.45(0.7),

Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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H - Help Screen
I - Data Info
A - Atoms On/Off
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Hassan I , Grundy H D , The Canadian Mineralogist , 27 (1989) p.165-172, The Structure of Nosean, Ideally Na8(Al6Si6O24)SO4.H2O, Note: O2 z-coordinate has been corrected according to the ICSD

View Additional jPOWD Structure files for Nosean
[1]

Physical Properties of Nosean

Cleavage:

[110] Perfect

Color:

White, Gray, Blue, Green, Brown.

Density:

2.3 - 2.4, Average = 2.34

Diaphaniety:

Transparent to Translucent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luminescence:

Fluorescent.

Luster:

Vitreous - Greasy

Streak:

bluish white

Optical Properties of Nosean

Gladstone-Dale:

CI meas= -0.021 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2006,KPDmeas= 0.2074,KC= 0.2032

Optical Data:

Isotropic, n=1.48-1.495.

Calculated Properties of Nosean

Electron Density:

r_electron=2.40 gm/cc
note: r_Nosean=2.43 gm/cc.

Fermion Index

Fermion Index = 0.00823
Boson Index = 0.99177

Photoelectric:

PE_Nosean= 1.59 barns/electron
U=PE_Nosean x r_electron= 3.81 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Nosean is Not Radioactive

Nosean Classification

Dana Class:

76.2.3.2 (76)Tectosilicate Al-Si Framework

(76.2)Feldspathoids and related species

(76.2.3)Sodalite group

76.2.3.1 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m

76.2.3.2 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m

76.2.3.3 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m

76.2.3.4 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m

76.2.3.5 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m

76.2.3.6 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra

76.2.3.7 Tugtupite Na4AlBeSi4O12Cl I 4 4

76.2.3.8 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2

Strunz Class:

VIII/J.11-20 VIII - Silicates

VIII/J - Tectosilicates (network) with anions unfamiliar to the tetraheders

VIII/J.11 - Sodalite group, Tsaregorodtsevite - Wadalite series

VIII/J.11-05 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2

VIII/J.11-10 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m

VIII/J.11-20 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m

VIII/J.11-30 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m

VIII/J.11-40 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m

VIII/J.11-50 Tugtupite Na4AlBeSi4O12Cl I 4 4

VIII/J.11-60 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra

VIII/J.11-70 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m

VIII/J.11-80 Wadalite Ca6Al5Si2O16Cl3 I 43d 4 3m

Other Nosean Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

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Nosean

Na8Al6Si6O24(SO4)
Dana No: 76.2.3.2 Strunz No: VIII/J.11-20
Locality:

Notes: