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Trustedtite Mineral Data
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General Trustedtite Information
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Chemical Formula: |
Ni3Se4 |
Composition: |
Molecular Weight = 491.91 gm |
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Nickel 35.79 % Ni |
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Selenium 64.21 % Se |
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______ |
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100.00 % |
Empirical Formula: |
Ni3Se4 |
Environment: |
In calcite- and uranium-bearing veins in sills of albite diabase in schist. Imbedded in clausthalite. |
IMA Status: |
Approved IMA 1964 |
Locality: |
Kuusamo, northeastern Finland. Link to MinDat.org Location Data. |
Name Origin: |
Named for O. Trustedt, whose work on prospecting methods lead to the discovery of the Outokumpu ore deposit, Finland. |
Name Pronunciation: |
Trustedtite + Pronunciation |
Synonym: |
Truestedtite |
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Trustedtite Crystallography
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Cell Dimensions: |
a = 9.94, Z = 8; V = 982.11 Den(Calc)= 6.65 |
Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m |
X Ray Diffraction: |
By Intensity(I/Io): 1.755(1), 2.48(1), 3(0.8), |
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Physical Properties of Trustedtite
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Color: |
Yellow. |
Diaphaneity: |
Opaque |
Habit: |
Euhedral Crystals - Occurs as well-formed crystals showing good external form. |
Habit: |
Inclusions - Generally found as inclusions in other minerals. |
Hardness: |
2.5 - Finger Nail |
Luster: |
Metallic |
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Optical Properties of Trustedtite
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Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Trustedtite in Air
λ |
R |
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∑ R(λ) |
400 nm |
42.20 |
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420 nm |
43.60 |
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440 nm |
45.00 |
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460 nm |
46.40 |
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480 nm |
47.50 |
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500 nm |
48.50 |
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520 nm |
49.40 |
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540 nm |
50.30 |
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560 nm |
51.20 |
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580 nm |
52.00 |
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600 nm |
52.60 |
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620 nm |
53.10 |
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640 nm |
53.80 |
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660 nm |
54.30 |
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680 nm |
54.90 |
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700 nm |
55.40 |
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Calculated Relative Intensity Colors of Trustedtite in Air
Relative Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
R |
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Calculated Properties of Trustedtite
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Electron Density: |
Bulk Density (Electron Density)=5.95 gm/cc note: Specific Gravity of Trustedtite =6.65 gm/cc. |
Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
Photoelectric: |
PETrustedtite = 65.87 barns/electron U=PETrustedtite x rElectron Density= 391.79 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Trustedtite is Not Radioactive |
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Trustedtite Classification
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Dana Class: |
02.10.01.09 (02)Sulfides - Including Selenides and Tellurides |
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(02.10)where Am Bn Xp, with (m+n):p=3:4 |
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(02.10.01)Linnaeite Group (Isometric: Fd3m) |
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02.10.01.01 Linnaeite CoCo2S4 F d3m 4/m 3 2/m |
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02.10.01.02 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m |
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02.10.01.03 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m |
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02.10.01.04 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m |
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02.10.01.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m |
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02.10.01.06 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m |
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02.10.01.07 Polydymite NiNi2S4 F d3m 4/m 3 2/m |
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02.10.01.08 Violarite FeNi2S4 F d3m 4/m 3 2/m |
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02.10.01.09 Trustedtite Ni3Se4 F d3m 4/m 3 2/m |
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02.10.01.10 Greigite FeFe2S4 F d3m 4/m 3 2/m |
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02.10.01.11 Daubreelite FeCr2S4 F d3m 4/m 3 2/m |
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02.10.01.12 Indite FeIn2S4 F d3m 4/m 3 2/m |
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02.10.01.13 Kalininite ZnCr2S4 F d3m 4/m 3 2/m |
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02.10.01.14 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m |
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02.10.01.15 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m |
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02.10.01.16 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m |
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02.10.01.17 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m |
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02.10.01.18 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m |
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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 |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DA -M:S = 3:4 |
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02.DA.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m |
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02.DA.05 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m |
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02.DA.05 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m |
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02.DA.05 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m |
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02.DA.05 Daubreelite FeCr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Greigite FeFe2S4 F d3m 4/m 3 2/m |
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02.DA.05 Indite FeIn2S4 F d3m 4/m 3 2/m |
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02.DA.05 Linnaeite CoCo2S4 F d3m 4/m 3 2/m |
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02.DA.05 Kalininite ZnCr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Polydymite NiNi2S4 F d3m 4/m 3 2/m |
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02.DA.05 Violarite FeNi2S4 F d3m 4/m 3 2/m |
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02.DA.05 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m |
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02.DA.05 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m |
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02.DA.05 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Trustedtite Ni3Se4 F d3m 4/m 3 2/m |
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02.DA.05 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m |
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Other Trustedtite Information
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References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Trustedtite :
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
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Print or Cut-and-Paste your Trustedtite Specimen Label here :
Trustedtite
Ni3Se4
Dana No: 02.10.01.09 Strunz No: 02.DA.05
Locality:
Notes:
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