General Wulfingite Information Chemical Formula: |
Zn(OH)2 |
Composition: |
Molecular Weight = 99.40 gm |
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Zinc 65.78 % Zn 81.88 % ZnO |
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Hydrogen 2.03 % H 18.12 % H2O |
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Oxygen 32.19 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Zn(OH)2 |
Environment: |
Fluorite veins in a limestone quarry. Polymorth of sweetite and ashoverite. |
IMA Status: |
Approved IMA 1985 |
Locality: |
Milltown, near Ashover, Derbyshite, England. Link to MinDat.org Location Data. |
Name Origin: |
Named for Ernst Anton Wulfing (1860-1930), professor of mineralogy and petrography, Heidelberg University. |
Name Pronunciation: |
Wulfingite + Pronunciation |
Synonym: |
Wuelfingite |
| | Wulfingite Image
Images:
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Wulfingite Crystallography Axial Ratios: |
a:b:c =1.6447:1:0.9525 |
Cell Dimensions: |
a = 8.49, b = 5.162, c = 4.917, Z = 4; V = 215.49 Den(Calc)= 3.06 |
Crystal System: |
Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121 |
X Ray Diffraction: |
By Intensity(I/Io): 3.28(1), 4.407(1), 4.25(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Wulfingite Color: |
Colorless, White. |
Density: |
3.05 |
Diaphaneity: |
Transparent to Translucent |
Habit: |
Pseudo Octohedral - Crystals show an octohedral outline. |
Hardness: |
3 - Calcite |
Luster: |
Waxy |
Streak: |
white |
| Optical Properties of Wulfingite Gladstone-Dale: |
CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1885,KPDmeas= 0.1891,KC= 0.191 Ncalc = 1.58 Optical Data: |
Biaxial (+), a=1.5722, b=1.5781, g=1.5801, bire=0.0079, 2V(Calc)=60, 2V(Meas)=60. |
| Calculated Properties of Wulfingite Electron Density: |
Bulk Density (Electron Density)=2.95 gm/cc |
note: Specific Gravity of Wulfingite =3.05 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PEWulfingite = 32.62 barns/electron |
U=PEWulfingite x rElectron Density= 96.07 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Wulfingite is Not Radioactive | Wulfingite Classification Dana Class: |
06.02.10.01 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.02)where X++ (OH)2 |
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(06.02.10)Dana Group |
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Strunz Class: |
04.FA.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FA -Hydroxides with OH, without H2O; corner-sharing tetrahedra |
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| Other Wulfingite Information References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.73,p196,1988) OPTIC PROP.(Am.Min.,Vol.73,p196,1988) |
See Also: |
Links to other databases for Wulfingite : |
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 Search for Wulfingite using: Visit our Advertisers for Wulfingite : A Bijoux Google Search for WulfingiteAdam's Minerals Google Search for Wulfingite Cape Minerals Google Search for Wulfingite Dakota Matrix Minerals Google Search for Wulfingite Excalibur Mineral Corp. Google Search for Wulfingite Exceptional Minerals Google Search for Wulfingite John Betts Fine Minerals Search for Wulfingite McDougall Minerals Google Search for Wulfingite Mineral News Website Link Rock and Mineral Shows Google Search for Wulfingite Weinrich Minerals, Inc. Google Search for Wulfingite Ask about Wulfingite here : Print or Cut-and-Paste your Wulfingite Specimen Label here :
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