Clausthalite Mineral Data (original) (raw)

General Clausthalite Information

Help on Chemical Formula: Chemical Formula:

PbSe

Help on Composition: Composition:

Molecular Weight = 286.16 gm

Lead 72.41 % Pb

Selenium 27.59 % Se

______

100.00 %

Help on Empirical Formula: Empirical Formula:

PbSe

Help on Environment: Environment:

Associated with low-sulfur hydrothermal deposits with other selenides.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1832

Help on Locality: Locality:

Lorenz Mine near Clausthal, Harz, Germany. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after its locality.

Help on Synonym: Synonym:

ICSD 38294

Lerbachite

PDF 6-354

Tilkerodite

Zorgite

Clausthalite Image

Click Here for Larger Clausthalite Image in a New Browser Window Images:

Click Here for Larger Clausthalite Image in a New Browser Window Images:

Click Here for Larger Clausthalite Image 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

Help on Cell Dimensions: Cell Dimensions:

a = 6.147, Z = 4; V = 232.27 Den(Calc)= 8.18

Help on Crystal System: Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.06(1), 2.165(0.7), 3.54(0.3),

Click Here for Large Clausthalite Structure Window Crystal Structure:

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| | 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

Help on Cleavage: Cleavage:

{001} Perfect, {010} Perfect, {100} Perfect

Help on Color: Color:

Lead gray, Blue gray, Grayish black.

Help on Density: Density:

7.6 - 8.8, Average = 8.19

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Fracture: Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Help on Habit: Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Help on Habit: Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Help on Habit: Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Help on Hardness: Hardness:

2.5 - Finger Nail

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Metallic

Help on Magnetism: Magnetism:

Nonmagnetic

Help on Streak: Streak:

grayish black

Optical Properties of Clausthalite

Help on RL Color: RL Color:

Galena-white with a grayish tinge.

Help on Reflectivity 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

RelativeIntensity 0% 20% 40% 60% 80% 100% 120% 140% 160% 180%
R

Calculated Properties of Clausthalite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=6.63 gm/cc
note: Specific Gravity of Clausthalite =8.18 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.18
Boson Index = 0.82

Help on Photoelectric: Photoelectric:

PEClausthalite =1,394.86 barns/electron
U=PEClausthalite x rElectron Density=9,250.43 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clausthalite is Not Radioactive

Clausthalite Classification

Help on Dana Class: Dana Class:

02.08.01.02 (02)Sulfides - Including Selenides and Tellurides

(02.08)where Am Bn Xp, with (m+n):p=1:1

(02.08.01)Galena Group (Isometric: Fm3m)

02.08.01.01 Galena PbS F m3m 4/m 3 2/m

02.08.01.02 Clausthalite PbSe F m3m 4/m 3 2/m

02.08.01.03 Altaite PbTe F m3m 4/m 3 2/m

02.08.01.04 Alabandite MnS F m3m 4/m 3 2/m

02.08.01.05 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m

02.08.01.06 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m

02.08.01.07 Borovskite Pd3SbTe4 F m3m 4/m 3 2/m

02.08.01.08 Crerarite (Pt,Pb)Bi3(S,Se)4-x(x~0.7) F m3m 4/m 3 2/m

02.08.01.09 Keilite! (Fe,Mn,Mg,Ca,Cr)S F m3m 4/m 3 2/m

Help on Strunz Class: Strunz Class:

02.CD.10 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.C - Metal Sulfides, M:S = 1:1 (and similar)

02.CD -With Sn, Pb, Hg, etc.

02.CD.10 Alabandite MnS F m3m 4/m 3 2/m

02.CD.10 Altaite PbTe F m3m 4/m 3 2/m

02.CD.10 Galena PbS F m3m 4/m 3 2/m

02.CD.10 Clausthalite PbSe F m3m 4/m 3 2/m

02.CD.10 Niningerite (Mg,Fe,Mn)S F m3m 4/m 3 2/m

02.CD.10 Oldhamite (Ca,Mg,Fe)S F m3m 4/m 3 2/m

02.CD.10 Keilite! (Fe,Mn,Mg,Ca,Cr)S F m3m 4/m 3 2/m

Other Clausthalite Information

Help on References: References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Clausthalite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - HyperPhysics
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

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Print or Cut-and-Paste your Clausthalite Specimen Label here :

Clausthalite

PbSe
Dana No: 02.08.01.02 Strunz No: 02.CD.10
Locality:

Notes: