Kozyrevskite
A valid IMA mineral species
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About Kozyrevskite
Formula:
Cu4O(AsO4)2
Colour:
Bright grass green to light yellowish green
Lustre:
Vitreous
Hardness:
3½
Specific Gravity:
4.934 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honour of the Russian geographer, traveller and military man Ivan Petrovich Kozyrevskiy (Ива́н Петро́вич Козыре́вский) (1680, Yakutsk – 2 December 1734, Moscow), one of the first researchers of Kamchatka.
Type Locality:
Dimorph of:
Unique Identifiers
Mindat ID:
43955
Long-form identifier:
mindat:1:1:43955:4
IMA Classification of Kozyrevskite
Classification of Kozyrevskite
8.BB.52b
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Kzy | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Kozyrevskite
Vitreous
Transparency:
Transparent
Colour:
Bright grass green to light yellowish green
Hardness:
3½ on Mohs scale
Comment:
~3½
Tenacity:
Brittle
Cleavage:
Perfect
(100) and (001) perfect
(100) and (001) perfect
Fracture:
Step-Like
Density:
4.934 g/cm3 (Calculated)
Optical Data of Kozyrevskite
Type:
Biaxial (-)
RI values:
nα = 1.885(8) nβ = 1.895(8) nγ = 1.900(8)
2V:
Measured: 75° (10), Calculated: 70°
Max. Birefringence:
δ = 0.015
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
r > v, strong.
Optical Extinction:
Extinction is straight, elongation is negative. Orientation is X = b.
Pleochroism:
Visible
Comments:
Distinct, X = green; Y = Z = yellowish green.
Comments:
Absorption X > Y = Z.
Chemistry of Kozyrevskite
Mindat Formula:
Cu4O(AsO4)2
Element Weights:
Elements listed:
Crystallography of Kozyrevskite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 8.2581(4) Å, b = 6.4026(4) Å, c = 13.8047(12) Å
Ratio:
a:b:c = 1.29 : 1 : 2.156
Unit Cell V:
729.9 ų
Z:
4
Morphology:
Prismatic crystals up to 0.3 mm long in clusters and as individual crystals.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0019953 | Kozyrevskite | Adams R D, Layland R, Payen C (1995) Cu4(AsO4)2(O): A new copper arsenate with unusual low temperature magnetic properties Inorganic Chemistry 34 5397-5398 | 1995 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.455 Å | (100) |
| 3.194 Å | (72) |
| 3.081 Å | (50) |
| 2.910 Å | (69) |
| 2.861 Å | (48) |
| 2.732 Å | (82) |
| 2.712 Å | (87) |
| 2.509 Å | (92) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] |
Type Occurrence of Kozyrevskite
General Appearance of Type Material:
Prismatic crystals up to 0.3 mm long in clusters and as individual crystals.
Place of Conservation of Type Material:
Type material is deposited in the collections of the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4388/1.
Geological Setting of Type Material:
Fumarole. The temperature measured at the collecting site was 360-380ºC.
Associated Minerals at Type Locality:
Synonyms of Kozyrevskite
Other Language Names for Kozyrevskite
Dutch:Kozyrevskiet
German:Kozyrevskit
Common Associates
Associations Based on Photo Data:
| 6 photos of Kozyrevskite associated with Lammerite | Cu3(AsO4)2 |
| 4 photos of Kozyrevskite associated with Tenorite | CuO |
| 2 photos of Kozyrevskite associated with Anhydrite | CaSO4 |
| 2 photos of Kozyrevskite associated with Langbeinite | K2Mg2(SO4)3 |
| 2 photos of Kozyrevskite associated with Paralammerite | Cu3(AsO4)2 |
| 2 photos of Kozyrevskite associated with Ericlaxmanite | Cu4O(AsO4)2 |
| 2 photos of Kozyrevskite associated with Orthoclase | K(AlSi3O8) |
| 1 photo of Kozyrevskite associated with Popovite | Cu5O2(AsO4)2 |
| 1 photo of Kozyrevskite associated with Wulffite | K3NaCu4O2(SO4)4 |
| 1 photo of Kozyrevskite associated with Aphthitalite | K3Na(SO4)2 |
Related Minerals - Strunz-mindat Grouping
| 8.BB. | Moabite | NiFe3+(PO4)O |
| 8.BB. | Tilasite | CaMg(AsO4)F |
| 8.BB. | Paulgrothite | Cu9Fe3+O4(PO4)4Cl3 |
| 8.BB. | Karlditmarite | Cu9O4(PO4)2(SO4)2 |
| 8.BB. | Milkovoite | Cu4O(PO4)(AsO4) |
| 8.BB.X | Arsenowagnerite | Mg2(AsO4)F |
| 8.BB.05 | Tavorite | LiFe3+(PO4)(OH) |
| 8.BB.05 | Amblygonite | LiAl(PO4)F |
| 8.BB.05 | Montebrasite | LiAl(PO4)(OH) |
| 8.BB.10 | Zwieselite | Fe2+2(PO4)F |
| 8.BB.10 | Triplite | Mn2+2(PO4)F |
| 8.BB.15 | 'Unnamed (Sb-analogue of Auriacusite)' | Fe3+Cu2+[(Sb,As)O4]O |
| 8.BB.15 | Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O |
| 8.BB.15 | Hydroxylwagnerite | Mg2(PO4)(OH) |
| 8.BB.15 | Wagnerite | Mg2(PO4)F |
| 8.BB.15 | Stanĕkite | (Mn2+,Fe2+,Mg)Fe3+(PO4)O |
| 8.BB.15 | Triploidite | Mn2+2(PO4)(OH) |
| 8.BB.15 | Sarkinite | Mn2+2(AsO4)(OH) |
| 8.BB.15 | Wolfeite | Fe2+2(PO4)(OH) |
| 8.BB.20 | Holtedahlite | Mg2(PO4)(OH) |
| 8.BB.20 | Satterlyite | (Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6 |
| 8.BB.25 | Althausite | Mg4(PO4)2(OH,O)(F,◻) |
| 8.BB.30 | Zincolivenite | CuZn(AsO4)(OH) |
| 8.BB.30 | Adamite | Zn2(AsO4)(OH) |
| 8.BB.30 | Libethenite | Cu2(PO4)(OH) |
| 8.BB.30 | Zincolibethenite | CuZn(PO4)(OH) |
| 8.BB.30 | Eveite | Mn2+2(AsO4)(OH) |
| 8.BB.30 | Olivenite | Cu2(AsO4)(OH) |
| 8.BB.30 | Auriacusite | Fe3+Cu2+(AsO4)O |
| 8.BB.35 | Paradamite | Zn2(AsO4)(OH) |
| 8.BB.35 | Tarbuttite | Zn2(PO4)(OH) |
| 8.BB.40 | Barbosalite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.40 | Scorzalite | Fe2+Al2(PO4)2(OH)2 |
| 8.BB.40 | Lazulite | MgAl2(PO4)2(OH)2 |
| 8.BB.40 | Meizhouite | Fe2+V3+2(PO4)2(OH)2 |
| 8.BB.40 | Hentschelite | CuFe3+2(PO4)2(OH)2 |
| 8.BB.40 | Wilhelmkleinite | ZnFe3+2(AsO4)2(OH)2 |
| 8.BB.45 | Dokuchaevite | Cu8O2(VO4)3Cl3 |
| 8.BB.45 | Trolleite | Al4(PO4)3(OH)3 |
| 8.BB.45 | Yaroshevskite | Cu9O2(VO4)4Cl2 |
| 8.BB.50 | Namibite | Cu(BiO)2(VO4)(OH) |
| 8.BB.50 | Aleutite | [Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)Cl |
| 8.BB.52a | Ericlaxmanite | Cu4O(AsO4)2 |
| 8.BB.55 | Phosphoellenbergerite | (Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6 |
| 8.BB.55 | Popovite | Cu5O2(AsO4)2 |
| 8.BB.60 | Urusovite | CuAl(AsO4)O |
| 8.BB.65 | Theoparacelsite | Cu3(As2O7)(OH)2 |
| 8.BB.70 | Turanite | Cu5(VO4)2(OH)4 |
| 8.BB.75 | Stoiberite | Cu5(VO4)2O2 |
| 8.BB.80 | Fingerite | Cu11(VO4)6O2 |
| 8.BB.85 | Averievite | Cu6(VO4)2O2Cl2 |
| 8.BB.90 | Richellite | CaFe3+2(PO4)2(OH,F)2 |
| 8.BB.90 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.90 | Zinclipscombite | ZnFe3+2(PO4)2(OH)2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Kozyrevskite
mindat.org URL:
https://www.mindat.org/min-43955.html
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References for Kozyrevskite
Reference List:
Adams, Richard D., Layland, Ralph, Payen, Christophe (1995) Cu4(AsO4)2(O): A New Copper Arsenate with Unusual Low Temperature Magnetic Properties. Inorganic Chemistry, 34 (22) 5397-5398 doi:10.1021/ic00126a002
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2013) New minerals and nomenclature modifications approved in 2013. CNMNC Newsletter No 16. Mineralogical Magazine, 77 (6) 2695-2709 doi:10.1180/minmag.2013.077.6.01
Pekov, I. V., Zubkova, N. V., Yapaskurt, V. O., Belakovskiy, D. I., Vigasina, M. F., Sidorov, E. G., Pushcharovsky, D. Yu. (2014) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevskite, two natural modifications of Cu4O(AsO4)2. Mineralogical Magazine, 78 (7) 1553-1569 doi:10.1180/minmag.2014.078.7.03
Localities for Kozyrevskite
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Williams et al. (2013) +1 other reference |
Quick NavTopAbout KozyrevskiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia