Mineralogy Database

Sweetite Mineral Data

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General Sweetite Information

Help on Chemical  Formula: Chemical Formula: Zn(OH)2
Help on Composition: Composition: Molecular Weight = 99.40 gm
   Zinc      65.78 %  Zn   81.88 % ZnO
   Hydrogen   2.03 %  H    18.12 % H2O
   Oxygen    32.19 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn(OH)2
Help on Environment: Environment: Oxidized vein in limestone.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Limestone quarry 200-300 m northwest of Milltown, near Ashover, Derbyshire, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Jessie May Sweet (1901-1979), Curator of the mineral collections of the British Museum (Natural History), London, England.
Help on Name Pronunciation: Name Pronunciation: Sweetite Say SWEETITE

Sweetite Image

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Comments: A white, pseudocubic crystal of sweetite.
Location: Milltown Quarry, Ashover, Derbyshire, England, UK. Scale: Picture size 1.4 mm.
© John Betts - Fine Minerals

Sweetite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.7441
Help on Cell Dimensions: Cell Dimensions: a = 8.222, c = 14.34, Z = 20; V = 969.40 Den(Calc)= 3.41
Help on Crystal System: Crystal System: Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: P 41212,P 43212
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.922(1), 3.572(0.6), 4.53(0.37),

Physical Properties of Sweetite

Help on Color: Color: Colorless, White.
Help on Density: Density: 3.33
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Streak: Streak: white

Optical Properties of Sweetite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1852,KPDmeas= 0.1896,KC= 0.191
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Uniaxial (-), e=1.628, w=1.635, bire=0.0070.

Calculated Properties of Sweetite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Sweetite =3.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PESweetite = 32.62 barns/electron
U=PESweetite x rElectron Density= 104.89 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sweetite is Not Radioactive

Sweetite Classification

Help on  Dana Class: Dana Class: (06)Hydroxides and Oxides Containing Hydroxyl
  (06.02)where X++ (OH)2
  (06.02.09)Dana Group Sweetite Zn(OH)2 P 41212,P 43212 4 2 2
Help on  Strunz Class: Strunz Class: 04.FA.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FA -Hydroxides with OH, without H2O; corner-sharing tetrahedra
04.FA.10 Ashoverite Zn(OH)2 I 41/amd 4/m 2/m 2/m
04.FA.10 Sweetite Zn(OH)2 P 41212,P 43212 4 2 2
04.FA.10 Wulfingite Zn(OH)2 P 212121 2 2 2

Other Sweetite Information

Help on References: References: NAME( AntBidBlaNic3) 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 Sweetite :
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: 04.FA.10





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