Greenockite Mineral Data (original) (raw)

General Greenockite Information

Help on Chemical Formula: Chemical Formula:

CdS

Help on Composition: Composition:

Molecular Weight = 144.48 gm

Cadmium 77.81 % Cd

Sulfur 22.19 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

CdS

Help on Environment: Environment:

Traprock cavities and ore veins.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1840

Help on Locality: Locality:

Greenock, Scotland. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after Lord Greenock (Ch. M. Cathcart 1783-1859).

Help on Name Pronunciation: Name Pronunciation:

Greenockite + Pronunciation Say GREENOCKITE

Help on Synonym: Synonym:

ICSD 60629

PDF 41-1049

Greenockite Image

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

Greenockite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:1.63874

Help on Cell Dimensions: Cell Dimensions:

a = 3.82, c = 6.26, Z = 2; V = 79.11 Den(Calc)= 6.06

Help on Crystal System: Crystal System:

Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.16(1), 3.58(0.75), 3.36(0.6),

Help on Forms: Forms:

Mouse
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| | Forms:( 2 0 3) ( 1 0 4) ( 1 0 2) ( 1 0 2) ( 0 1 0) ( 0 0 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Click Here for Large Greenockite Structure Window Crystal Structure:

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| | Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: wurtzite structure | | ------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Greenockite

Help on Cleavage: Cleavage:

{1120} Distinct, {0001} Imperfect

Help on Color: Color:

Honey yellow, Citron yellow, Orange yellow.

Help on Density: Density:

3.98 - 5, Average = 4.49

Help on Diaphaneity: Diaphaneity:

Opaque to translucent

Help on Fracture: Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Help on Habit: Habit:

Colloform - Forming from a gel or colloidal mass.

Help on Habit: Habit:

Encrustations - Forms crust-like aggregates on matrix.

Help on Habit: Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Help on Hardness: Hardness:

3.5-4 - Copper Penny-Fluorite

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Luster: Luster:

Adamantine - Resinous

Help on Magnetism: Magnetism:

Nonmagnetic

Help on Streak: Streak:

orange yellow

Optical Properties of Greenockite

Help on Dichroism (e): Dichroism (e):

red or bluish green.

Help on Dichroism (w): Dichroism (w):

blue green or blue.

Help on Optical Data: Optical Data:

Uniaxial (+/-), a=2.506, b=2.529, bire=0.0230.

Help on RL Color: RL Color:

Very light lemon yellow to red-browns and blood red.

Help on RL Pleochroism: RL Pleochroism:

Weak.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Greenockite in Air

λ R ∑ R(λ)
400 nm 21.10
420 nm 21.00
440 nm 21.90
460 nm 22.20
480 nm 21.80
500 nm 20.70
520 nm 20.00
540 nm 19.60
560 nm 19.10
580 nm 18.70
600 nm 18.50
620 nm 18.20
640 nm 18.00
660 nm 17.80
680 nm 17.70
700 nm 17.50

Calculated Relative Intensity Colors of Greenockite in Air

RelativeIntensity 0% 50% 100% 150% 200% 250% 300% 350% 400% 450% 480%
R

Calculated Properties of Greenockite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.37 gm/cc
note: Specific Gravity of Greenockite =6.06 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.19
Boson Index = 0.81

Help on Photoelectric: Photoelectric:

PEGreenockite = 212.93 barns/electron
U=PEGreenockite x rElectron Density=1,143.19 barns/cc.

Help on Radioactivity: Radioactivity:

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

Greenockite Classification

Help on Dana Class: Dana Class:

02.08.07.02 (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

Help on Strunz Class: 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 Greenockite Information

Help on References: References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

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

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

Greenockite

CdS
Dana No: 02.08.07.02 Strunz No: 02.CB.45
Locality:

Notes: