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Hauyne Mineral Data

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General Hauyne Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Help on Composition: Composition: Molecular Weight = 1,032.43 gm
   Sodium     8.91 %  Na   12.01 % Na2O
   Calcium    7.76 %  Ca   10.86 % CaO
   Aluminum  15.68 %  Al   29.63 % Al2O3
   Silicon   16.32 %  Si   34.92 % SiO2
   Sulfur     9.32 %  S
   Chlorine   1.72 %  Cl    1.72 % Cl
               -   %   Cl   -0.39 % -O=Cl2   
   Oxygen    40.29 %  O
            ______        ______ 
            100.00 %       96.50 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4Ca2Al6Si6O22S2(SO4)Cl0.5
Help on Environment: Environment: Igneous rocks low in silica and rich in alkalis.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1807
Help on Locality: Locality: Vesuvian lavas, on Mte Somma, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the French crystallographer, R. J. Hauy (1743-1822).
Help on Name Pronunciation: Name Pronunciation: Hauyne Say HAUYNE
Help on Synonym: Synonym: Hauynite
  ICSD 39952
  PDF 37-473

Hauyne Image

Click Here for Larger   Image in a New Browser Window Images:
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Comments: Grains of deep blue hauyne crystals in matrix.
Location: Niedermendig, Eifel, Germany. Scale: Picture size 5 mm.
© John Veevaert

Hauyne Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 8.9, Z = 1; V = 704.97 Den(Calc)= 2.43
Help on Crystal System: Crystal System: Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: P 43n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.72(1), 2.63(0.5), 6.45(0.3),

Physical Properties of Hauyne

Help on Cleavage: Cleavage: {110} Perfect, {011} Perfect, {101} Perfect
Help on Color: Color: Blue, Green, Red, Yellow, Gray.
Help on Density: Density: 2.4 - 2.5, Average = 2.45
Help on Diaphaneity: Diaphaneity: Subtransparent to translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: bluish white

Optical Properties of Hauyne

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.019 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2042,KPDmeas= 0.2025,KC= 0.1987
Ncalc = 1.48 - 1.5
Help on Optical Data: Optical Data: Isotropic, n=1.4961.

Calculated Properties of Hauyne

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.42 gm/cc
note: Specific Gravity of Hauyne =2.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.008619431
Boson Index = 0.991380569
Help on Photoelectric: Photoelectric: PEHauyne = 2.81 barns/electron
U=PEHauyne x rElectron Density= 6.81 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hauyne is Not Radioactive

Hauyne Classification

Help on  Dana Class: Dana Class: (76)Tectosilicate Al-Si Framework
  (76.02)Feldspathoids and related species
  (76.02.03)Sodalite group Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m Nosean Na8Al6Si6O24(SO4) P 43m 4 3m Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra Tugtupite Na4AlBeSi4O12Cl I 4 4 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
Help on  Strunz Class: Strunz Class: 09.FB.10 09 - SILICATES (Germanates)
  09.F - Tektosilicates without Zeolitic H2O
  09.FB -Tektosilicates with additional anions
09.FB.10 Bicchulite Ca2Al2SiO6(OH)2 I 43m 4 3m
09.FB.10 Danalite Fe4Be3(SiO4)3S P 43n 4 3m
09.FB.10 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 43n 4 3m
09.FB.10 Genthelvite Zn4Be3(SiO4)3S P 43n 4 3m
09.FB.10 Helvite Mn4Be3(SiO4)3S P 43n 4 3m
09.FB.10 Lazurite Na3Ca(Al3Si3O12)S P 43n 4 3m
09.FB.10 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
09.FB.10 Nosean Na8Al6Si6O24(SO4) P 43m 4 3m
09.FB.10 Sodalite Na8Al6Si6O24Cl2 P 43n 4 3m
09.FB.10 Tugtupite Na4AlBeSi4O12Cl I 4 4
09.FB.10 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2

Other Hauyne Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Hauyne :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - CalTech Mineral Spectroscopy
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - UCLA - Petrography Thin-Sections

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Dana No: Strunz No: 09.FB.10





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