Hauyne Mineral Data
General Hauyne Information
Chemical Formula:
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Composition:
Molecular Weight = 1,032.43 gm
Sodium 8.91 % Na 12.01 % Na2 O
Calcium 7.76 % Ca 10.86 % CaO
Aluminum 15.68 % Al 29.63 % Al2 O3
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
Empirical Formula:
Na4 Ca2 Al6 Si6 O22 S2 (SO4 )Cl0.5
Environment:
Igneous rocks low in silica and rich in alkalis.
IMA Status:
Valid Species (Pre-IMA) 1807
Locality:
Vesuvian lavas, on Mte Somma, Italy. Link to MinDat.org Location Data.
Name Origin:
Named after the French crystallographer, R. J. Hauy (1743-1822).
Name Pronunciation:
Hauyne
Synonym:
Hauynite
ICSD 39952
PDF 37-473
Hauyne Image
Images:
Hauyne
Comments: Grains of deep blue hauyne crystals in matrix.
Location: Niedermendig, Eifel, Germany.
Scale: Picture size 5 mm.
© John Veevaert
Hauyne Crystallography
Cell Dimensions:
a = 8.9, Z = 1; V = 704.97 Den(Calc)= 2.43
Crystal System:
Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: P 4 3n
X Ray Diffraction:
By Intensity(I/Io ): 3.72(1), 2.63(0.5), 6.45(0.3),
Physical Properties of Hauyne
Cleavage:
{110} Perfect, {011} Perfect, {101} Perfect
Color:
Blue, Green, Red, Yellow, Gray.
Density:
2.4 - 2.5, Average = 2.45
Diaphaneity:
Subtransparent to translucent
Fracture:
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Habit:
Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
Habit:
Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Habit:
Twinning Common - Crystals are usually twinned.
Hardness:
5-6 - Between Apatite and Orthoclase
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Greasy
Streak:
bluish white
Optical Properties of Hauyne
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
Optical Data:
Isotropic, n=1.4961.
Calculated Properties of Hauyne
Electron Density:
Bulk Density (Electron Density)=2.42 gm/cc note: Specific Gravity of Hauyne =2.45 gm/cc.
Fermion Index:
Fermion Index = 0.008619431 Boson Index = 0.991380569
Photoelectric:
PEHauyne = 2.81 barns/electronU=PEHauyne x r Electron Density= 6.81 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hauyne is Not Radioactive
Hauyne Classification
Dana Class:
76.02.03.03 (76) Tectosilicate Al-Si Framework
(76.02) Feldspathoids and related species
(76.02.03) Sodalite group
76.02.03.01 Sodalite Na8Al6Si6O24Cl2 P 4 3n 4 3m
76.02.03.02 Nosean Na8Al6Si6O24(SO4) P 4 3m 4 3m
76.02.03.03 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 4 3n 4 3m
76.02.03.04 Lazurite Na3Ca(Al3Si3O12)S P 4 3n 4 3m
76.02.03.05 Bicchulite Ca2Al2SiO6(OH)2 I 4 3m 4 3m
76.02.03.06 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
76.02.03.07 Tugtupite Na4AlBeSi4O12Cl I 4 4
76.02.03.08 Tsaregorodtsevite N(CH3)4AlSi5O12 I 222 2 2 2
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 4 3m 4 3m
09.FB.10 Danalite Fe4Be3(SiO4)3S P 4 3n 4 3m
09.FB.10 Hauyne (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2 P 4 3n 4 3m
09.FB.10 Genthelvite Zn4Be3(SiO4)3S P 4 3n 4 3m
09.FB.10 Helvite Mn4Be3(SiO4)3S P 4 3n 4 3m
09.FB.10 Lazurite Na3Ca(Al3Si3O12)S P 4 3n 4 3m
09.FB.10 Kamaishilite Ca2Al2SiO6(OH)2 I-lattice Tetra
09.FB.10 Nosean Na8Al6Si6O24(SO4) P 4 3m 4 3m
09.FB.10 Sodalite Na8Al6Si6O24Cl2 P 4 3n 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
References:
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
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
17 - WWW-MINCRYST
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Hauyne
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Dana No: 76.02.03.03 Strunz No: 09.FB.10
Locality:
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