|
![Mineralogy Database Mineralogy Database](/images/Hedyphane_Crystal.gif) |
Wurtzite Mineral Data
|
|
|
General Wurtzite Information
|
Chemical Formula: |
(Zn,Fe)S |
Composition: |
Molecular Weight = 96.50 gm |
|
Zinc 60.98 % Zn |
|
Iron 5.79 % Fe |
|
Sulfur 33.23 % S |
|
______ |
|
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: |
Pr�bram, 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:
|
|
Wurtzite Barite
Comments: Compact, dark, metallic crystals of wurtzite intermixed with galena crystals and white barite blades.
Location: Huanzala, Huanuco Dept., Peru.
Scale: 5 x 4 x 2.5 cm.
© Isaias Casanova / IC Minerals |
|
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 Pyramidal H-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), |
|
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 |
Standardized Intensity (100%) Reflection Spectra of Wurtzite in Air
λ |
R |
![](../images/Reflect_scale_v.gif) |
∑ R(λ) |
400 nm |
19.20 |
![](../images/400nm.BMP) |
|
420 nm |
18.70 |
![](../images/420nm.BMP) |
440 nm |
18.20 |
![](../images/440nm.BMP) |
460 nm |
17.80 |
![](../images/460nm.BMP) |
480 nm |
17.40 |
![](../images/480nm.BMP) |
500 nm |
17.10 |
![](../images/500nm.BMP) |
520 nm |
16.90 |
![](../images/520nm.BMP) |
540 nm |
16.60 |
![](../images/540nm.BMP) |
560 nm |
16.40 |
![](../images/560nm.BMP) |
580 nm |
16.30 |
![](../images/580nm.BMP) |
600 nm |
16.20 |
![](../images/600nm.BMP) |
620 nm |
16.10 |
![](../images/620nm.BMP) |
640 nm |
16.10 |
![](../images/640nm.BMP) |
660 nm |
16.10 |
![](../images/660nm.BMP) |
680 nm |
16.00 |
![](../images/680nm.BMP) |
700 nm |
15.80 |
![](../images/700nm.BMP) |
Calculated Relative Intensity Colors of Wurtzite in Air
Relative Intensity |
0% |
60% |
100% |
120% |
180% |
240% |
300% |
360% |
420% |
480% |
540% |
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
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 |
|
(02.08)where Am Bn Xp, with (m+n):p=1:1 |
|
(02.08.07)Wurtzite Group (Hexagonal: P63mc) |
|
02.08.07.01 Wurtzite (Zn,Fe)S P 63mc 6mm |
|
02.08.07.02 Greenockite CdS P 63mc 6mm |
|
02.08.07.03 Cadmoselite CdSe P 63mc 6mm |
|
02.08.07.04 Rambergite! MnS P 63mc 6mm |
Strunz Class: |
02.CB.45 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
|
02.C - Metal Sulfides, M:S = 1:1 (and similar) |
|
02.CB -With Zn, Fe, Cu, Ag, Au, etc |
|
02.CB.45 Cadmoselite CdSe P 63mc 6mm |
|
02.CB.45 Greenockite CdS P 63mc 6mm |
|
02.CB.45 Rambergite! MnS P 63mc 6mm |
|
02.CB.45 Wurtzite (Zn,Fe)S P 63mc 6mm |
|
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:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Wurtzite :
Ask about Wurtzite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Español
Print or Cut-and-Paste your Wurtzite Specimen Label here :
Wurtzite
(Zn,Fe)S
Dana No: 02.08.07.01 Strunz No: 02.CB.45
Locality:
Notes:
|
|
|
|
|
|
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.