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Khatyrkite Mineral Data
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General Khatyrkite Information
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 Chemical Formula: |
(Cu,Zn)Al2 |
| Composition: |
Molecular Weight = 117.97 gm |
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Aluminum 45.74 % Al |
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Zinc 13.86 % Zn |
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Copper 40.40 % Cu |
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______ |
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100.00 % |
| Empirical Formula: |
Cu0.75Zn0.25Al2 |
| Environment: |
In black slick washed from greenish gray cover weathering from serpentine. Intimately intergrown with cupalite in small grains. |
| IMA Status: |
Approved IMA 1985 |
| Locality: |
Khatirskii ultramafic zone of the Koryak-Kamchata fold area, Koryak Mountains, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Khatyrkite + Pronunciation  |
| Synonym: |
ICSD 42517 |
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PDF 25-12 |
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Khatyrkite Image |
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Images:
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Khatyrkite
Comments: Left: Black khatyrkite with spinel, olivine and augite (whitish material). Right: High-resolution image (collection through a transmission electron microscope) of a region of about 15 nanometers showing 5 fold symmetry.
Location: Khatirskii ultramafic zone of the Koryak-Kamchata fold area, Koryak Mountains, Russia..
Scale: Not Given.
© Museum of Natural History |
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Khatyrkite Crystallography
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| Axial Ratios: |
a:c = 1:0.8056 |
| Cell Dimensions: |
a = 6.07, c = 4.89, Z = 4; V = 180.17 Den(Calc)= 4.35 |
| Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: I 4/mcm |
| X Ray Diffraction: |
By Intensity(I/Io): 4.27(1), 2.119(0.8), 2.372(0.7),3.04(0.5), 1.894(0.4), 2.156(0.2), |
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Physical Properties of Khatyrkite
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| Cleavage: |
{100} Indistinct |
| Color: |
Steel-gray yellow. |
| Diaphaneity: |
Opaque |
| Fracture: |
Malleable - Deforms rather than breaking apart with a hammer. |
| Habit: |
Inclusions - Generally found as inclusions in other minerals. |
| Hardness: |
5 - Apatite |
| Luster: |
Metallic |
| Streak: |
dark gray |
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Optical Properties of Khatyrkite
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| Optical Data: |
NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.2062) where Ncalc=Dcalc*KC+1
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| RL Anisotrophism: |
Distinct, grayish brown to red. |
| RL Color: |
Basal sections bluish, otherwise, blue to creamy pink. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Khatyrkite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 440 nm |
75.80 |
70.10 |
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| 460 nm |
75.60 |
70.30 |
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| 480 nm |
75.90 |
71.50 |
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| 500 nm |
76.50 |
73.00 |
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| 520 nm |
76.40 |
74.50 |
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| 540 nm |
76.10 |
76.10 |
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| 560 nm |
75.30 |
77.40 |
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| 580 nm |
74.30 |
78.40 |
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| 600 nm |
73.20 |
79.20 |
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| 620 nm |
72.00 |
79.70 |
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| 640 nm |
70.70 |
79.80 |
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| 660 nm |
69.50 |
79.90 |
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| 680 nm |
68.50 |
79.80 |
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| 700 nm |
67.50 |
79.50 |
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Calculated Relative Intensity Colors of Khatyrkite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
130% |
| R1 |
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| R2 |
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Calculated Properties of Khatyrkite
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| Electron Density: |
Bulk Density (Electron Density)=4.07 gm/cc
note: Specific Gravity of Khatyrkite =4.35 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0056815042
Boson Index = 0.9943184958 |
| Photoelectric: |
PEKhatyrkite = 26.36 barns/electron
U=PEKhatyrkite x rElectron Density= 107.39 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Khatyrkite is Not Radioactive |
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Khatyrkite Classification
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| Dana Class: |
01.01.15.02 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.15)Dana Group |
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01.01.15.01 Cupalite (Cu,Zn)Al Unk Ortho |
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01.01.15.02 Khatyrkite (Cu,Zn)Al2 I 4/mcm 4/m 2/m 2/m |
| Strunz Class: |
01.AA.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.AA -Copper-cupalite family |
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01.AA.15 Anyuiite Au(Pb,Sb)2 I 4/mcm 4/m 2/m 2/m |
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01.AA.15 Khatyrkite (Cu,Zn)Al2 I 4/mcm 4/m 2/m 2/m |
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01.AA.15 Novodneprite! AuPb3 I 4/2m 4/m |
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Other Khatyrkite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Khatyrkite :
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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Khatyrkite
(Cu,Zn)Al2
Dana No: 01.01.15.02 Strunz No: 01.AA.15
Locality:
Notes:
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