Duranusite Mineral Data (original) (raw)

General Duranusite Information

Help on Chemical Formula: Chemical Formula:

As4S

Help on Composition: Composition:

Molecular Weight = 331.75 gm

Arsenic 90.33 % As

Sulfur 9.67 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

As4S

Help on Environment: Environment:

Realgar has been altered by deuteric solutions to form the rare mineral duranusite,

Help on IMA Status: IMA Status:

Approved IMA 1973

Help on Locality: Locality:

Duranus, Alpes-Meritimes, France. Mina Capillitas, an epithermal deposit in the Province of Catamarca, Argentina. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the locality.

Help on Name Pronunciation: Name Pronunciation:

Duranusite + Pronunciation Say DURANUSITE

Duranusite Image

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Duranusite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.529:1:1.4904

Help on Cell Dimensions: Cell Dimensions:

a = 3.576, b = 6.759, c = 10.074, Z = 2; V = 243.49 Den(Calc)= 4.52

Help on Crystal System: Crystal System:

OrthorhombicSpace Group: Unk

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.919(1), 5.037(0.9), 5.62(0.9),

Physical Properties of Duranusite

Help on Color: Color:

Red.

Help on Density: Density:

4.5

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Hardness: Hardness:

2 - Gypsum

Help on Luster: Luster:

Metallic

Help on Streak: Streak:

black

Optical Properties of Duranusite

Help on RL Color: RL Color:

Gray-white with a brownish tint and brownish red internal reflections.

Help on Reflectivity Reflectivity

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

λ R1 R 2 ∑ R1(λ) ∑ R2(λ)
400 nm 39.00 42.00
420 nm 36.80 39.40
440 nm 34.60 36.80
460 nm 33.00 34.80
480 nm 32.10 33.60
500 nm 31.40 32.70
520 nm 30.80 32.20
540 nm 30.40 31.80
560 nm 30.00 31.50
580 nm 29.60 31.00
600 nm 29.10 30.60
620 nm 28.70 30.30
640 nm 28.40 30.00
660 nm 28.00 29.70
680 nm 27.60 29.30
700 nm 27.10 29.00

Calculated Relative Intensity Colors of Duranusite in Air

RelativeIntensity 0% 40% 80% 100% 120% 160% 200% 240% 280% 300%
R1
R2

Calculated Properties of Duranusite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=4.03 gm/cc
note: Specific Gravity of Duranusite =4.52 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0007249232
Boson Index = 0.9992750768

Help on Photoelectric: Photoelectric:

PEDuranusite = 65.88 barns/electron
U=PEDuranusite x rElectron Density= 265.70 barns/cc.

Help on Radioactivity: Radioactivity:

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

Duranusite Classification

Help on Dana Class: Dana Class:

02.01.04.01 (02)Sulfides - Including Selenides and Tellurides

(02.01)where Am Xp, with m:p>3:1

(02.01.04)Dana Group

02.01.04.01 Duranusite As4S Unk Ortho

Help on Strunz Class: Strunz Class:

02.FA.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O

02.FA -With As, (Sb), S

02.FA.05 Duranusite As4S Unk Ortho

Other Duranusite Information

Help on References: References:

NAME( CanMin, 10/99) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Duranusite :
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

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

Duranusite

As4S
Dana No: 02.01.04.01 Strunz No: 02.FA.05
Locality:

Notes: