Argentopyrite Mineral Data (original) (raw)

General Argentopyrite Information

Help on Chemical Formula: Chemical Formula:

AgFe2S3

Help on Composition: Composition:

Molecular Weight = 315.76 gm

Iron 35.37 % Fe

Silver 34.16 % Ag

Sulfur 30.47 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

AgFe3+2S3

Help on Environment: Environment:

Occurs as crusts of euhedral crystals formed in hydrothermal veins.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1868

Help on Locality: Locality:

From St. Andreasberg, Harz; Marienberg, Schneeberg, Johanngeorgenstadt, and Freiberg, Saxony; and at the Anton mine, Weiden, Black Forest, Germany. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

For its composition and physical similarity to pyrite.

Help on Name Pronunciation: Name Pronunciation:

Argentopyrite + Pronunciation Say ARGENTOPYRITE

Argentopyrite Image

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

Argentopyrite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.5789:1:0.5623

Help on Cell Dimensions: Cell Dimensions:

a = 6.64, b = 11.47, c = 6.45, Z = 4; V = 491.24 Den(Calc)= 4.27

Help on Crystal System: Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmmn

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.318(1), 3.341(1), 1.808(0.7),

Physical Properties of Argentopyrite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Blue, Bronze brown, Green, Yellow, White.

Help on Density: Density:

4.25

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Fracture: Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Help on Hardness: Hardness:

3.5-4 - Copper Penny-Fluorite

Help on Luster: Luster:

Metallic

Optical Properties of Argentopyrite

Help on RL Anisotrophism: RL Anisotrophism:

Strong, deep blue to pale blue-gray.

Help on RL Color: RL Color:

White, bright gray.

Help on Reflectivity Reflectivity

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

λ R1 R 2 ∑ R1(λ) ∑ R2(λ)
400 nm 20.80 29.10
420 nm 22.10 30.00
440 nm 23.40 30.90
460 nm 24.50 31.80
480 nm 25.30 32.50
500 nm 26.00 33.30
520 nm 26.30 34.00
540 nm 26.80 34.70
560 nm 27.30 35.30
580 nm 28.00 35.80
600 nm 28.60 36.40
620 nm 29.30 36.80
640 nm 30.00 37.20
660 nm 30.80 37.40
680 nm 31.40 37.60
700 nm 32.00 37.80

Calculated Relative Intensity Colors of Argentopyrite in Air

RelativeIntensity 0% 40% 80% 100% 120% 160% 200% 240% 280% 320% 360% 380%
R1
R2

Calculated Properties of Argentopyrite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.98 gm/cc
note: Specific Gravity of Argentopyrite =4.27 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.009784
Boson Index = 0.990216

Help on Photoelectric: Photoelectric:

PEArgentopyrite = 96.36 barns/electron
U=PEArgentopyrite x rElectron Density= 383.09 barns/cc.

Help on Radioactivity: Radioactivity:

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

Argentopyrite Classification

Help on Dana Class: Dana Class:

02.09.13.02 (02)Sulfides - Including Selenides and Tellurides

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

(02.09.13)Cubanite Group

02.09.13.01 Cubanite CuFe2S3 Pcmn 2/m 2/m 2/m

02.09.13.02 Argentopyrite AgFe2S3 Pmmn 2/m 2/m 2/m

02.09.13.03 Isocubanite CuFe2S3 F m3m 4/m 3 2/m

Help on Strunz Class: Strunz Class:

02.CB.65 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.65 Argentopyrite AgFe2S3 Pmmn 2/m 2/m 2/m

02.CB.65 Sternbergite AgFe2S3 C mma 2/m 2/m 2/m

Other Argentopyrite Information

Help on References: References:

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

Help on See Also: See Also:

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

Search for Argentopyrite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Argentopyrite :

A Bijoux Google Search for Argentopyrite
Adam's Minerals Google Search for Argentopyrite
Cape Minerals Google Search for Argentopyrite
Dakota Matrix Minerals Google Search for Argentopyrite
Excalibur Mineral Corp. Google Search for Argentopyrite
Exceptional Minerals Google Search for Argentopyrite
John Betts Fine Minerals Search for Argentopyrite
McDougall Minerals Google Search for Argentopyrite
Mineral News Website Link
Rock and Mineral Shows Google Search for Argentopyrite
Weinrich Minerals, Inc. Google Search for Argentopyrite

Ask about Argentopyrite 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 Espa�ol

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

Argentopyrite

AgFe2S3
Dana No: 02.09.13.02 Strunz No: 02.CB.65
Locality:

Notes: