Mavlyanovite
A valid IMA mineral species
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About Mavlyanovite
Formula:
Mn5Si3
Colour:
grey
Lustre:
Metallic
Hardness:
7
Specific Gravity:
6.06 (Calculated)
Crystal System:
Hexagonal
Name:
Named in honor of Gani Arifkhanovich Mavlyanov (Гани Арифханович Мавлянов) (15 January 1910, Tashkent, Uzbekistan - 1988, Tashkent, Uzbekistan), Academician for his contributions to the understanding of the geology of Uzbekistan. He was the first director of both the Institute of Hydrogeology and Engineering Geology and the Institute of Seismology.
Suessite group. Mn analogue of xifengite. Also Mn(Si)-analogue of wenjiite.
Phase corresponding to mavlyanovite was first described from Ukraine, together with chemically similar UM1990-56-Si:FeMn.
Phase corresponding to mavlyanovite was first described from Ukraine, together with chemically similar UM1990-56-Si:FeMn.
Unique Identifiers
Mindat ID:
38826
Long-form identifier:
mindat:1:1:38826:9
GUID
(UUID V4):
(UUID V4):
d18994e1-06f0-4260-99cc-e7715eaa45b4
IMA Classification of Mavlyanovite
Approved
Approval year:
2008
First published:
2009
Type description reference:
Classification of Mavlyanovite
1.BB.05
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
B : Silicides
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
B : Silicides
1.1.33.13
1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
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 |
---|---|---|
Mav | 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 Mavlyanovite
Metallic
Transparency:
Opaque
Colour:
grey
Streak:
dark-grey
Hardness:
7 on Mohs scale
Hardness:
VHN100=1029 - 1098 kg/mm2 - Vickers
Fracture:
Conchoidal
Density:
6.06 g/cm3 (Calculated)
Chemistry of Mavlyanovite
Mindat Formula:
Mn5Si3
Elements listed:
Crystallography of Mavlyanovite
Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mcm
Cell Parameters:
a = 6.8971 Å, c = 4.8075 Å
Ratio:
a:c = 1 : 0.697
Unit Cell V:
198.05 ų (Calculated from Unit Cell)
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) |
---|---|---|---|---|---|---|---|
0018916 | Mavlyanovite | Aronsson B (1960) A note on the compositions and crystal structures of MnB2, Mn3Si, Mn5Si3 and FeSi2 Acta Chemica Scandinavica 14 1414-1418 | 1960 | synthetic | 0 | 293 | |
0014586 | Mavlyanovite | Yusupov R G, Stanley C J, Welch M D, Spratt J, Cressey G, Rumsey M S, Seltmann R, Igamberdiev E (2009) Mavlyanovite, Mn5Si3: a new mineral species from a lamproite diatreme, Chatkal Ridge, Uzbekistan Mineralogical Magazine 73 43-50 | 2009 | Chatkal Ridge, Uzbekistan | 0 | 293 | |
0017619 | Mavlyanovite | Amark K, Boren B, Westgren A (1936) On the crystal structure of Mn5Si3 _cod_database_code 1010891 Svensk Kemisk Tidskrift 48 273-276 | 1936 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.258 Å | (44) |
2.230 Å | (29) |
2.044 Å | (100) |
1.991 Å | (30) |
1.972 Å | (67) |
1.401 Å | (16) |
1.307 Å | (22) |
1.268 Å | (15) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks | |
Stage 5: Initiation of plate tectonics | <3.5-2.5 |
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies) |
Type Occurrence of Mavlyanovite
Place of Conservation of Type Material:
The Geological Museum of the State Committee on Geology and Mineral Resources, Tashkent, Uzbekistan, and in the Natural History Museum, London, UK, catalog no. BM 2008,31
Geological Setting of Type Material:
a lamproite diatreme
Associated Minerals at Type Locality:
Reference:
Yusupov, R.G., Stanley, C.J., Welch, M.D., Spratt, J., Cressey, G., Rumsey, M.S., Seltmann, R., Igamberdiev, E. (2009) Mavlyanovite, Mn5Si3: a new mineral species from a lamproite diatreme, Chatkal Ridge, Uzbekistan. Mineralogical Magazine: 73: 43-50.
Synonyms of Mavlyanovite
Related Minerals - Strunz-mindat Grouping
1.BB. | Zangboite | TiFeSi2 |
1.BB. | Brownleeite | MnSi |
1.BB. | Kangjinlaite | Ti11Si10 |
1.BB. | Toledoite | TiFeSi |
1.BB. | Yeite | TiSi |
1.BB.05 | Suessite | (Fe,Ni)3Si |
1.BB.10 | UM2001-18-Si:CuPtSn | (Cu,Pt)4Si |
1.BB.10 | Perryite | (Ni,Fe)5(Si,P)2 |
1.BB.15 | Naquite | FeSi |
1.BB.20 | Linzhiite | FeSi2 |
1.BB.25 | Luobusaite | Fe0.84Si2 |
1.BB.30 | Gupeiite | Fe3Si |
1.BB.35 | Hapkeite | Fe2Si |
1.BB.40 | Xifengite | Fe5Si3 |
1.BB.45 | Carletonmooreite | Ni3Si |
1.BB.55 | Palladosilicide | Pd2Si |
1.BB.65 | Zhiqinite | TiSi2 |
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 Mavlyanovite
mindat.org URL:
https://www.mindat.org/min-38826.html
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References for Mavlyanovite
Reference List:
Jambor, John L., Puziewicz, Jacek (1992) New Mineral Names. American Mineralogist, 77 (9-10) 1116-1121 p.1118
Localities for Mavlyanovite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Ukraine | |
| in: Jambor et al. (1920) +1 other reference |
Uzbekistan (TL) | |
| Yusupov et al. (2009) |
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Lamproite diatreme, Koshmansay River, Chatkal-Kuraminskii Range, Tashkent, Uzbekistan