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Tatyanaite Mineral Data
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General Tatyanaite Information
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 Chemical Formula: |
(Pt,Pd,Cu)9Cu3Sn4 |
| Composition: |
Molecular Weight = 14486.37 gm |
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Copper 13.42 % Cu |
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Tin 3.28 % Sn |
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Palladium 25.12 % Pd |
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Platinum 58.18 % Pt |
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______ |
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100.00 % |
| Empirical Formula: |
9(Pt4.8)9(Pd3.8)9(Cu3.4)Sn4 |
| Environment: |
Massive sulfide ores. Pt dominant endmember with taimyrite. In the central portion of Pt-Pd zoned grains. |
| IMA Status: |
Approved IMA 1995 (Dana # Added) |
| Locality: |
Oktyabr'sky deposit Noril'sk, Siberia, Russa. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the Russian mineralogist Tatyana L. Evstigneeva (or Yestigneeva) (1945-). |
| Synonym: |
IMA1995-049 |
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Tatyanaite Image |
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Images:
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Tatyanaite Rustenburgite
Comments: Back-scattered electron images showing inclusions of rustenburgite intergrown with taimyrite-tatyanaite aggregates. (AmMin, v 42, p 608).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia.
Scale: See Image.
© American Mineralogist |
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Tatyanaite Crystallography
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| Axial Ratios: |
a:b:c =1.9385:1:1.8992 |
| Cell Dimensions: |
a = 7.89, b = 4.07, c = 7.73, Z = 0.14; V = 248.23 Den(Calc)= 13.57 |
| Crystal System: |
Orthorhombic Space Group: P mmm,Pmm2,P 222 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.283(1), 2.163(0.4), 1.369(0.3), |
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Physical Properties of Tatyanaite
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| Cleavage: |
None |
| Color: |
Pink. |
| Diaphaneity: |
Opaque |
| Fracture: |
Malleable - Deforms rather than breaking apart with a hammer. |
| Habit: |
Ductile - Grains deform from mechanical stress. Characteristic of metals. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Platy - Sheet forms (e.g. micas). |
| Hardness: |
3.5-4 - Copper Penny-Fluorite |
| Luster: |
Metallic |
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Optical Properties of Tatyanaite
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| RL Anisotrophism: |
Distinct to moderate, from light brown to dark blue. |
| RL Bireflectance: |
Weak to distinct, brownish pink to pinkish lilac. |
| RL Color: |
Pink with lilac tinge in air. |
| RL Pleochroism: |
Weak to distinct, from brownish pink to pinkish lilac. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tatyanaite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
42.80 |
44.10 |
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| 546 nm |
49.50 |
50.00 |
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| 589 nm |
51.80 |
54.60 |
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| 650 nm |
55.60 |
56.80 |
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Standardized Intensity (100%) Reflection Spectra of Tatyanaite in Oil
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
32.80 |
33.30 |
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| 546 nm |
37.60 |
38.80 |
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| 589 nm |
38.90 |
39.90 |
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| 650 nm |
41.60 |
44.20 |
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Calculated Relative Intensity Colors of Tatyanaite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
| R1 |
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| R2 |
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Calculated Relative Intensity Colors of Tatyanaite in Oil
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 Tatyanaite
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| Electron Density: |
Bulk Density (Electron Density)=11.3 gm/cc
note: Specific Gravity of Tatyanaite =13.6 gm/cc.
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| Fermion Index: |
Fermion Index = 0.25
Boson Index = 0.75 |
| Photoelectric: |
PETatyanaite = 985.91 barns/electron
U=PETatyanaite x rElectron Density=11138.31 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tatyanaite is Not Radioactive |
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Tatyanaite Classification
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| Dana Class: |
01.02.07.02 (01)Native Elements |
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(01.02)with platinum group metals and alloys |
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(01.02.07)Dana Group |
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01.02.07.01 Taimyrite (Pd,Cu,Pt)3Sn Unk Ortho |
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01.02.07.02 Tatyanaite! (Pt,Pd,Cu)9Cu3Sn4 P mmm,Pmm2,P 222 Ortho |
| Strunz Class: |
01.AG.15 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.A - Metals and Intermetallic Alloys |
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01.AG -PGE-metal alloys |
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01.AG.15 Tatyanaite! (Pt,Pd,Cu)9Cu3Sn4 P mmm,Pmm2,P 222 Ortho |
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01.AG.15 Taimyrite (Pd,Cu,Pt)3Sn Unk Ortho |
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Other Tatyanaite Information
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| References: |
NAME( AmMin, Vol 85, p 1845) PHYS. PROP.(AmMin, Vol 85, p 1845) OPTIC PROP.(AmMin, Vol 85, p 1845) |
| See Also: |
Links to other databases for Tatyanaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Tatyanaite
(Pt,Pd,Cu)9Cu3Sn4
Dana No: 01.02.07.02 Strunz No: 01.AG.15
Locality:
Notes:
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