Violarite Mineral Data

General Violarite Information

Chemical Formula:

Fe++Ni+++2S4

Composition:

Molecular Weight = 301.49 gm

Iron 18.52 % Fe

Nickel 38.93 % Ni

Sulfur 42.54 % S

______

100.00 %

Empirical Formula:

Fe²⁺Ni₂S₄

Environment:

Of hydrothermal origin with other sufides.

IMA Status:

Valid Species (Pre-IMA) 1924

Locality:

Vermilion mine, Denison township, Sudbury district, Ontario, Canada. Link to MinDat.org Location Data.

Name Origin:

From the Latin for "purple", its color in a polished section.

Name Pronunciation:

Violarite + Pronunciation

Synonym:

ICSD 42590

PDF 42-1449

Violarite Image

Images:

Violarite

Comments: Bronze massive violarite, tarnished, with gray colored rock.
Location: Marbridge Mines ltd., Abitibi District, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Violarite Crystallography

Cell Dimensions:

a = 9.445, Z = 8; V = 842.57 Den(Calc)= 4.75

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

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

By Intensity(I/I_o): 2.85(1), 1.674(0.8), 1.82(0.6),

Forms:

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Forms: ( 1 1 0) ( 1 1 1)

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Crystal Structure:

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Vaughan D J , Craig J R , American Mineralogist , 70 (1985) p.1036-1043, The crystal chemistry of iron-nickel thiospinels, Note: structure from ICSD

Physical Properties of Violarite

Cleavage:

{001} Perfect, {001} Perfect, {001} Perfect

Color:

Violet gray, Copper red, Light gray, Steel gray.

Density:

4.5 - 4.8, Average = 4.65

Diaphaneity:

Opaque

Fracture:

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

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Hardness:

4.5-5.5 - Near Apatite

Luminescence:

Non-fluorescent.

Luster:

Metallic

Magnetism:

Nonmagnetic

Optical Properties of Violarite

RL Color:

Violet, distinct.

RL Pleochroism:

None.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Violarite in Air**
λ	R	∑ R(λ)
400 nm	39.00
420 nm	39.60
440 nm	40.20
460 nm	40.60
480 nm	41.00
500 nm	41.40
520 nm	41.90
540 nm	42.50
560 nm	43.10
580 nm	43.80
600 nm	44.30
620 nm	44.80
640 nm	45.40
660 nm	45.80
680 nm	46.20
700 nm	46.60

**Calculated Relative Intensity Colors of Violarite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	220%
R

Calculated Properties of Violarite

Electron Density:

Bulk Density (Electron Density)=4.60 gm/cc
note: Specific Gravity of Violarite =4.75 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Violarite= 23.44 barns/electron
U=PE_Violarite x rElectron Density= 107.83 barns/cc.

Radioactivity:

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

Violarite Classification

Dana Class:

02.10.01.08 (02)Sulfides - Including Selenides and Tellurides

(02.10)where Am Bn Xp, with (m+n):p=3:4

(02.10.01)Linnaeite Group (Isometric: Fd3m)

02.10.01.01 Linnaeite CoCo2S4 F d3m 4/m 3 2/m

02.10.01.02 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m

02.10.01.03 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m

02.10.01.04 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m

02.10.01.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m

02.10.01.06 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m

02.10.01.07 Polydymite NiNi2S4 F d3m 4/m 3 2/m

02.10.01.08 Violarite FeNi2S4 F d3m 4/m 3 2/m

02.10.01.09 Trustedtite Ni3Se4 F d3m 4/m 3 2/m

02.10.01.10 Greigite FeFe2S4 F d3m 4/m 3 2/m

02.10.01.11 Daubreelite FeCr2S4 F d3m 4/m 3 2/m

02.10.01.12 Indite FeIn2S4 F d3m 4/m 3 2/m

02.10.01.13 Kalininite ZnCr2S4 F d3m 4/m 3 2/m

02.10.01.14 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m

02.10.01.15 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m

02.10.01.16 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m

02.10.01.17 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m

02.10.01.18 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m

02.10.01.19 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m

Strunz Class:

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

02.D - Metal Sulfides, M:S = 3:4 and 2:3

02.DA -M:S = 3:4

02.DA.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m

02.DA.05 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m

02.DA.05 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m

02.DA.05 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m

02.DA.05 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m

02.DA.05 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m

02.DA.05 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m

02.DA.05 Daubreelite FeCr2S4 F d3m 4/m 3 2/m

02.DA.05 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m

02.DA.05 Greigite FeFe2S4 F d3m 4/m 3 2/m

02.DA.05 Indite FeIn2S4 F d3m 4/m 3 2/m

02.DA.05 Linnaeite CoCo2S4 F d3m 4/m 3 2/m

02.DA.05 Kalininite ZnCr2S4 F d3m 4/m 3 2/m

02.DA.05 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m

02.DA.05 Polydymite NiNi2S4 F d3m 4/m 3 2/m

02.DA.05 Violarite FeNi2S4 F d3m 4/m 3 2/m

02.DA.05 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m

02.DA.05 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m

02.DA.05 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m

02.DA.05 Trustedtite Ni3Se4 F d3m 4/m 3 2/m

02.DA.05 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m

Other Violarite Information

References:

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

See Also:

Links to other databases for Violarite :
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 - Scandinavian mineral gallery
16 - WWW-MINCRYST

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

Violarite

Fe++Ni+++2S4
Dana No: 02.10.01.08 Strunz No: 02.DA.05
Locality:

Notes: