Wattevilleite Mineral Data

Wattevilleite Mineral Data
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General Wattevilleite Information

Help on Chemical Formula: Chemical Formula: Na2Ca(SO4)2•4(H2O) (?)
Help on Composition: Composition: Molecular Weight = 350.25 gm
   Sodium    13.13 %  Na   17.70 % Na2O
   Calcium   11.44 %  Ca   16.01 % CaO
   Hydrogen   2.30 %  H    20.57 % H2O
   Sulfur    18.31 %  S    45.72 % SO3
   Oxygen    54.82 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Ca(SO4)2•4(H2O)
Help on Environment: Environment: A questionable species. Associated with other sulfates in a pyritic lignite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1879
Help on Locality: Locality: Einigkeit mine, Bauersberg, near Bischofsheim, Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Oscar de Watteville of Paris, France.
Help on Name Pronunciation: Name Pronunciation: Wattevilleite + Pronunciation Say WATTEVILLEITE
 

Wattevilleite Image

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Wattevilleite

Comments: White masses of wattervilleite scattered on lingite matrix. Label gives locality simply as Bischofsheim. Photographed under indirect natural light, hence the deep blue reflections and shadow areas.
Location: Einigkeit Mine, Bauersberg Mt., Bischofsheim, Rhön Mts, Franconia, Bavaria, Germany. Scale: Field of view 0.25 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Wattevilleite Crystallography
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.39(1), 4.2(0.6), 2.89(0.5),2.95(0.5), 5.44(0.5), 2.67(0.4), 4.03(0.4), 5.1(0.4),
 

Physical Properties of Wattevilleite

Help on Color: Color: White.
Help on Density: Density: 1.81
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Silky
Help on Streak: Streak: white
 

Optical Properties of Wattevilleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.139 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2484,KC= 0.2181
Ncalc = 1.39
Help on Optical Data: Optical Data: Biaxial (-), a=1.435, b=1.455, g=1.459, bire=0.0240, 2V(Calc)=46, 2V(Meas)=48. Dispersion dispersion not observed.
 

Calculated Properties of Wattevilleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.84 gm/cc
note: Specific Gravity of Wattevilleite =1.81 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0017943435
Boson Index = 0.9982056565
Help on Photoelectric: Photoelectric: PEWattevilleite = 2.74 barns/electron
U=PEWattevilleite x rElectron Density= 5.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wattevilleite is Not Radioactive
 

Wattevilleite Classification
Help on Dana Class: Dana Class: 29.03.04.01 (29)Hydrated Acid and Sulfates
  (29.03)where (A+)2 B (XO4)2 · x(H2O)
  (29.03.04)Dana Group
 
29.03.04.01 Wattevilleite Na2Ca(SO4)2•4(H2O)(?) Unk Ortho
Help on Strunz Class: Strunz Class: 07.CC.85 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.85 Wattevilleite Na2Ca(SO4)2•4(H2O)(?) Unk Ortho
 

Other Wattevilleite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Wattevilleite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Ask about Wattevilleite here :
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Print or Cut-and-Paste your Wattevilleite Specimen Label here :

Wattevilleite

Na2Ca(SO4)2•4(H2O) (?)
Dana No: 29.03.04.01 Strunz No: 07.CC.85
Locality:

 

Notes: