General Wurtzite Information Chemical Formula: |
(Zn,Fe)S |
Composition: |
Molecular Weight = 96.50 gm |
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Zinc 60.98 % Zn |
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Iron 5.79 % Fe |
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Sulfur 33.23 % S |
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100.00 % |
Empirical Formula: |
Zn0.9Fe2+0.1S |
Environment: |
Of hydrothermal origin in veins with other sulfides. |
IMA Status: |
Valid Species (Pre-IMA) 1861 |
Locality: |
Príbram, Stredocesky kraj, Czech Republic Link to MinDat.org Location Data. |
Name Origin: |
Named after the French chemist, Charles A. Wurtze (1817-1884). |
Name Pronunciation: |
Wurtzite |
Synonym: |
Radial Blende |
| | Wurtzite Image
Images:
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Wurtzite Crystallography Axial Ratios: |
a:c = 1:1.63874 |
Cell Dimensions: |
a = 3.82, c = 6.26, Z = 2; V = 79.11 Den(Calc)= 4.05 |
Crystal System: |
Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc |
X Ray Diffraction: |
By Intensity(I/Io): 3.31(1), 3.13(0.86), 2.93(0.84), |
Crystal Structure:
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Mouse
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| Physical Properties of Wurtzite Cleavage: |
{1010} Good, {0001} Good |
Color: |
Brownish black, Orange brown, Reddish brown, Black. |
Density: |
3.98 - 4.08, Average = 4.03 |
Diaphaneity: |
Translucent |
Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Habit: |
Colloform - Forming from a gel or colloidal mass. |
Habit: |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Habit: |
Tabular - Form dimensions are thin in one direction. |
Hardness: |
3.5-4 - Copper Penny-Fluorite |
Luminescence: |
Fluorescent, Long UV=orange red. |
Luster: |
Adamantine - Resinous |
Magnetism: |
Nonmagnetic |
Streak: |
light brown |
| Optical Properties of Wurtzite Dichroism (e): |
none. |
Dichroism (w): |
none. |
Optical Data: |
Uniaxial (+), w=2.356, e=2.378, bire=0.0220. |
RL Color: |
Deep reddish brown to dark brown to brown-black; yellow to dark brown internal reflections. |
Reflectivity |
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| Calculated Properties of Wurtzite Electron Density: |
Bulk Density (Electron Density)=3.83 gm/cc |
note: Specific Gravity of Wurtzite =4.05 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PEWurtzite = 34.43 barns/electron |
U=PEWurtzite x rElectron Density= 131.76 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Wurtzite is Not Radioactive | Wurtzite Classification Dana Class: |
02.08.07.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.08)where Am Bn Xp, with (m+n):p=1:1 |
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(02.08.07)Wurtzite Group (Hexagonal: P63mc) |
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Strunz Class: |
02.CB.45 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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| Other Wurtzite Information References: |
NAME( Duda&Rejl90) PHYS. PROP.(www.saint-hilaire.ca) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Wurtzite : |
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Athena 6 - Franklin Minerals(Dunn) 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - HyperPhysics 13 - MinDAT 14 - Mineral and Gemstone Kingdom 15 - Mineralienatlas (Deutsch) 16 - Online Mineral Museum 17 - QUT Mineral Atlas 18 - Ruff.Info 19 - WWW-MINCRYST Search for Wurtzite using: Visit our Advertisers for Wurtzite : A Bijoux Google Search for WurtziteAdam's Minerals Google Search for Wurtzite Cape Minerals Google Search for Wurtzite Dakota Matrix Minerals Google Search for Wurtzite Excalibur Mineral Corp. Google Search for Wurtzite Exceptional Minerals Google Search for Wurtzite John Betts Fine Minerals Search for Wurtzite McDougall Minerals Google Search for Wurtzite Mineral News Website Link Rock and Mineral Shows Google Search for Wurtzite Weinrich Minerals, Inc. Google Search for Wurtzite Ask about Wurtzite here : Print or Cut-and-Paste your Wurtzite Specimen Label here :
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