Dzharkenite Mineral Data

General Dzharkenite Information

Chemical Formula:

FeSe2

Composition:

Molecular Weight = 213.77 gm

Iron 26.13 % Fe

Selenium 73.87 % Se

______

100.00 %

Empirical Formula:

Fe²⁺Se₂

Environment:

In selenium ore associated with ferrosellite and goethite. Polymorphous with ferroselite.

IMA Status:

Approved IMA 1995

Locality:

In the Suluchekinskoye Se-U deposit, Dzharkenskaya depression, SE Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named after its locality.

Name Pronunciation:

Dzharkenite + Pronunciation

Synonym:

IMA1993-054

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Dzharkenite Crystallography

Cell Dimensions:

a = 5.783, Z = 4; V = 193.40 Den(Calc)= 7.34

Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.588(1), 2.364(0.8), 1.546(0.6),

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Physical Properties of Dzharkenite

Cleavage:

None

Color:

Black.

Density:

7.34

Diaphaneity:

Opaque

Fracture:

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

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

black

Optical Properties of Dzharkenite

RL Anisotrophism:

Absent.

RL Bireflectance:

Absent.

RL Color:

Pink-yellow.

RL Pleochroism:

Absent.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Dzharkenite in Air**
λ	R	∑ R(λ)
480 nm	41.70
540 nm	42.60
580 nm	45.10
660 nm	50.20

**Calculated Relative Intensity Colors of Dzharkenite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%
R

Calculated Properties of Dzharkenite

Electron Density:

Bulk Density (Electron Density)=6.46 gm/cc
note: Specific Gravity of Dzharkenite =7.34 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_Dzharkenite= 67.56 barns/electron
U=PE_Dzharkenite x rElectron Density= 436.09 barns/cc.

Radioactivity:

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

Dzharkenite Classification

Dana Class:

02.12.01.17 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.01)Pyrite Group (Isometric: Pa3)

02.12.01.01 Pyrite FeS2 P a3 2/m 3

02.12.01.02 Vaesite NiS2 P a3 2/m 3

02.12.01.03 Cattierite CoS2 P a3 2/m 3

02.12.01.04 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

02.12.01.05 Trogtalite CoSe2 P a3 2/m 3

02.12.01.06 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

02.12.01.07 Fukuchilite Cu3FeS8 P a3 2/m 3

02.12.01.08 Krutaite CuSe2 P a3 2/m 3

02.12.01.09 Hauerite MnS2 P a3 2/m 3

02.12.01.10 Laurite RuS2 P a3 2/m 3

02.12.01.11 Aurostibite AuSb2 P a3 2/m 3

02.12.01.12 Krutovite NiAs2 P a3 2/m 3

02.12.01.13 Sperrylite PtAs2 P a3 2/m 3

02.12.01.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3

02.12.01.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

02.12.01.16 Erlichmanite OsS2 P a3 2/m 3

02.12.01.17 Dzharkenite FeSe2 P a3 2/m 3

02.12.01.18 Gaotaiite Ir3Te8 P a3 2/m 3

02.12.01.19 Mayingite IrBiTe P a3 2/m 3

Strunz Class:

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

02.E - Metal Sulfides, M:S £ 1:2

02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.

02.EB.05a Aurostibite AuSb2 P a3 2/m 3

02.EB.05a Cattierite CoS2 P a3 2/m 3

02.EB.05a Hauerite MnS2 P a3 2/m 3

02.EB.05a Fukuchilite Cu3FeS8 P a3 2/m 3

02.EB.05a Dzharkenite FeSe2 P a3 2/m 3

02.EB.05a Erlichmanite OsS2 P a3 2/m 3

02.EB.05a Geversite Pt(Sb,Bi)2 P a3 2/m 3

02.EB.05a Gaotaiite Ir3Te8 P a3 2/m 3

02.EB.05a Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

02.EB.05a Laurite RuS2 P a3 2/m 3

02.EB.05a Krutaite CuSe2 P a3 2/m 3

02.EB.05a Pyrite FeS2 P a3 2/m 3

02.EB.05a Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

02.EB.05a Sperrylite PtAs2 P a3 2/m 3

02.EB.05a Vaesite NiS2 P a3 2/m 3

02.EB.05a Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

02.EB.05a Trogtalite CoSe2 P a3 2/m 3

Other Dzharkenite Information

References:

NAME( MinRec, v 27, p 116) PHYS. PROP.(MinRec, v 27, p 116) OPTIC PROP.(MinRec, v 27, p 116)

See Also:

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

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

Dzharkenite

FeSe2
Dana No: 02.12.01.17 Strunz No: 02.EB.05a
Locality:

Notes: