General Clausthalite Information
|
Chemical Formula: |
PbSe |
Composition: |
Molecular Weight = 286.16 gm |
| |
Lead 72.41 % Pb |
| |
Selenium 27.59 % Se |
| |
______ |
| |
100.00 % |
Empirical Formula: |
PbSe |
Environment: |
Associated with low-sulfur hydrothermal deposits with other selenides. |
IMA Status: |
Valid Species (Pre-IMA) 1832 |
Locality: |
Lorenz Mine near Clausthal, Harz, Germany. Link to MinDat.org Location Data. |
Name Origin: |
Named after its locality. |
Synonym: |
ICSD 38294 |
| |
Lerbachite |
| |
PDF 6-354 |
| |
Tilkerodite |
| |
Zorgite |
| |
Clausthalite Image |
Images:
|
|
Images:
|
|
Clausthalite Schlemaite Eucairite
Comments: Reflected-light digital-image of the intermixed schlemaite grain in type sample F2, from which the reflectance, crystallographic and crystal-structure data were obtained. (CanMin, v 41, p 1435).
Location: "Tiber" dike, -855-m level, block 5128, main shaft # 371, Niederschlema-Alberoda vein-type uranium depost at Hartensein, Erzgebirge, Germany.
Scale: See Picture.
© Canadian Mineralogist |
|
Clausthalite Crystallography
|
Cell Dimensions: |
a = 6.147, Z = 4; V = 232.27 Den(Calc)= 8.18 |
Crystal System: |
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m |
X Ray Diffraction: |
By Intensity(I/Io): 3.06(1), 2.165(0.7), 3.54(0.3), |
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
|
|
|
Ramsdell L S , American Mineralogist , 10 (1925) p.281-304, The crystal structures of some metallic sulfides
View Additional jPOWD Structure files for Clausthalite
[1]
|
|
| |
Physical Properties of Clausthalite
|
Cleavage: |
[001] Perfect, [010] Perfect, [100] Perfect |
Color: |
Lead gray, Blue gray, Grayish black. |
Density: |
7.6 - 8.8, Average = 8.19 |
Diaphaniety: |
Opaque |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Habit: |
Euhedral Crystals - Occurs as well-formed crystals showing good external form. |
Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
Hardness: |
2.5 - Finger Nail |
Luminescence: |
None. |
Luster: |
Metallic |
Magnetism: |
Nonmagnetic |
Streak: |
grayish black |
| |
Optical Properties of Clausthalite
|
RL Color: |
Galena-white with a grayish tinge. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Clausthalite in Air
| λ |
R |
 |
∑ R(λ) |
| 400 nm |
62.00 |
 |
|
| 420 nm |
60.50 |
 |
| 440 nm |
59.00 |
 |
| 460 nm |
57.30 |
 |
| 480 nm |
55.60 |
 |
| 500 nm |
54.00 |
 |
| 520 nm |
52.60 |
 |
| 540 nm |
51.30 |
 |
| 560 nm |
50.20 |
 |
| 580 nm |
49.20 |
 |
| 600 nm |
48.40 |
 |
| 620 nm |
47.70 |
 |
| 640 nm |
47.30 |
 |
| 660 nm |
47.00 |
 |
| 680 nm |
47.00 |
 |
| 700 nm |
47.20 |
 |
Calculated Relative Intensity Colors of Clausthalite in Air
Relative Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
| R |
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Clausthalite
|
Electron Density: |
relectron=6.63 gm/cc note: rClausthalite =8.18 gm/cc. |
Fermion Index |
Fermion Index = 0.18099 Boson Index = 0.81901 |
Photoelectric: |
PEClausthalite =1,394.86 barns/electron U=PEClausthalite x relectron=9,250.43 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Clausthalite is Not Radioactive |
| |
Clausthalite Classification
|
Dana Class: |
2.8.1.2 (2)Sulfides - Including Selenides and Tellurides |
| |
(2.8)where Am Bn Xp, with (m+n):p=1:1 |
| |
(2.8.1)Galena Group (Isometric: Fm3m) |
| |
2.8.1.1 Galena PbS F m3m 4/m 3 2/m |
| |
2.8.1.2 Clausthalite PbSe F m3m 4/m 3 2/m |
| |
2.8.1.3 Altaite PbTe F m3m 4/m 3 2/m |
| |
2.8.1.4 Alabandite MnS F m3m 4/m 3 2/m |
| |
2.8.1.5 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m |
| |
2.8.1.6 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m |
| |
2.8.1.7 Borovskite Pd3SbTe4 F m3m 4/m 3 2/m |
| |
2.8.1.8 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m |
| |
2.8.1.9 Keilite! (Fe,Mg)S F m3m 4/m 3 2/m |
Strunz Class: |
II/C.15-50 II - Sulfides and sulphosalts |
| |
II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1 |
| |
II/C.15 - Galenite group |
| |
II/C.15-05 Keilite! (Fe,Mg)S F m3m 4/m 3 2/m |
| |
II/C.15-10 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m |
| |
II/C.15-20 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m |
| |
II/C.15-30 Alabandite MnS F m3m 4/m 3 2/m |
| |
II/C.15-40 Galena PbS F m3m 4/m 3 2/m |
| |
II/C.15-50 Clausthalite PbSe F m3m 4/m 3 2/m |
| |
II/C.15-60 Altaite PbTe F m3m 4/m 3 2/m |
| |
II/C.15-70 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m |
| |
Other Clausthalite Information
|
References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Clausthalite :
1 -Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 -Athena
4 - Crocoite.com Mineral Locations
5 - EUROmin Project
6 -Google Images
7 -Google Scholar
8 -Handbook of Mineralogy (UofA)
9 - HyperPhysics
10 -MinDAT
11 -MinMax(Deutsch)
12 -MinMax(English)
13 -Mineralienatlas (Deutsch)
14 -QUT Mineral Atlas
15 - WWW-MINCRYST
16 -École des Mines de Paris
Search for Clausthalite using:
[ALTAVISTA]
[AOL]
[About.com]
[All-The-Web]
[HotBot]
[Ixquick]
[LookSmart]
[MAMMA]
[MSN.COM]
[Netscape]
[Teoma]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Clausthalite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop
Translate Clausthalite Mineral Data :
Ask about Clausthalite 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 Clausthalite Specimen Label here :
|
Clausthalite
PbSe
Dana No: 2.8.1.2 Strunz No: II/C.15-50
Locality:
Notes:
|
|
| |
| |
|
| |