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Lapieite Mineral Data
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General Lapieite Information
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 Chemical Formula: |
CuNiSbS3 |
| Composition: |
Molecular Weight = 340.18 gm |
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Copper 18.68 % Cu |
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Nickel 17.25 % Ni |
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Antimony 35.79 % Sb |
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Sulfur 28.28 % S |
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______ |
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100.00 % |
| Empirical Formula: |
CuNiSbS3 |
| Environment: |
In a highly altered and mineralized glacial erratic. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
Near the confluence of Glacier Creek and the Lapie River, Cyr Ranges, Yukon Territory, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Lapieite  |
| Synonym: |
IMA1983-002 |
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Lapieite Crystallography
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| Axial Ratios: |
a:b:c =0.5933:1:0.3917 |
| Cell Dimensions: |
a = 7.422, b = 12.508, c = 4.9, Z = 4; V = 454.89 Den(Calc)= 4.97 |
| Crystal System: |
Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.959(1), 1.837(0.9), 3.178(0.9), |
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Physical Properties of Lapieite
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| Cleavage: |
{100} Distinct |
| Color: |
Steel gray. |
| Density: |
4.966 |
| Diaphaneity: |
Opaque |
| Hardness: |
4.5-5 - Near Apatite |
| Luster: |
Metallic |
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Optical Properties of Lapieite
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| RL Anisotrophism: |
Strong, very pale blue to intense yellowish pink tints. |
| RL Pleochroism: |
Shades of greenish gray to gray. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Lapieite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
33.40 |
32.10 |
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| 420 nm |
34.00 |
32.20 |
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| 440 nm |
34.60 |
32.50 |
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| 460 nm |
34.90 |
33.30 |
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| 480 nm |
34.80 |
34.50 |
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| 500 nm |
34.50 |
35.80 |
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| 520 nm |
34.10 |
36.50 |
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| 540 nm |
33.90 |
36.80 |
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| 560 nm |
34.10 |
36.70 |
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| 580 nm |
34.30 |
36.70 |
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| 600 nm |
34.30 |
36.80 |
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| 620 nm |
34.40 |
37.00 |
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| 640 nm |
34.80 |
37.30 |
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| 660 nm |
35.60 |
37.80 |
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| 680 nm |
36.60 |
38.60 |
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| 700 nm |
37.80 |
39.50 |
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Calculated Relative Intensity Colors of Lapieite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
270% |
| R1 |
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| R2 |
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Calculated Properties of Lapieite
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| Electron Density: |
Bulk Density (Electron Density)=4.56 gm/cc
note: Specific Gravity of Lapieite =4.97 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0040703913
Boson Index = 0.9959296087 |
| Photoelectric: |
PELapieite = 132.20 barns/electron
U=PELapieite x rElectron Density= 602.62 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lapieite is Not Radioactive |
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Lapieite Classification
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| Dana Class: |
03.04.04.01 (03)Sulfides - Sulfosalts |
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(03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.04.04)Lapieite Group |
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03.04.04.01 Lapieite CuNiSbS3 P 212121 2 2 2 |
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03.04.04.02 Muckeite CuNiBiS3 P 212121 2 2 2 |
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03.04.04.03 Malyshevite PdCuBiS3 P mmm 2/m 2/m 2/m |
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03.04.04.04 Lisiguangite! CuPtBiS3 P 212121 2 2 2 |
| Strunz Class: |
02.GA.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.G - Sulfarsenites, sulfantimonites, sulfbismuthites |
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02.GA -Neso-sulfarsenites, etc., without additional S |
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02.GA.25 Muckeite CuNiBiS3 P 212121 2 2 2 |
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02.GA.25 Lapieite CuNiSbS3 P 212121 2 2 2 |
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02.GA.25 Malyshevite PdCuBiS3 P mmm 2/m 2/m 2/m |
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02.GA.25 Lisiguangite! CuPtBiS3 P 212121 2 2 2 |
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Other Lapieite 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 Lapieite :
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 Lapieite Specimen Label here :
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Lapieite
CuNiSbS3
Dana No: 03.04.04.01 Strunz No: 02.GA.25
Locality:
Notes:
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