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Mavlyanovite

A valid IMA mineral species
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About MavlyanoviteHide

02154530015708894544989.jpg
Gani A. Mavlyanov
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.


Unique IdentifiersHide

Mindat ID:
38826
Long-form identifier:
mindat:1:1:38826:9
GUID
(UUID V4):
d18994e1-06f0-4260-99cc-e7715eaa45b4

IMA Classification of MavlyanoviteHide

Classification of MavlyanoviteHide

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
1.1.33.13

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
MavIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of MavlyanoviteHide

Metallic
Transparency:
Opaque
Colour:
grey
Streak:
dark-grey
Hardness:
Hardness:
VHN100=1029 - 1098 kg/mm2 - Vickers
Fracture:
Conchoidal
Density:
6.06 g/cm3 (Calculated)

Chemistry of MavlyanoviteHide

Mindat Formula:
Mn5Si3

Crystallography of MavlyanoviteHide

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 StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0018916MavlyanoviteAronsson B (1960) A note on the compositions and crystal structures of MnB2, Mn3Si, Mn5Si3 and FeSi2 Acta Chemica Scandinavica 14 1414-14181960synthetic0293
0014586MavlyanoviteYusupov 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 43-502009Chatkal Ridge, Uzbekistan0293
0017619MavlyanoviteAmark K, Boren B, Westgren A (1936) On the crystal structure of Mn5Si3 _cod_database_code 1010891 Svensk Kemisk Tidskrift 48 273-27619360293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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 EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest 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 MavlyanoviteHide

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 MavlyanoviteHide

Related Minerals - Strunz-mindat GroupingHide

1.BB.ZangboiteTiFeSi2Orth. mmm (2/m 2/m 2/m) : Pbam
1.BB.BrownleeiteMnSiIso. 2 3 : P21 3
1.BB.KangjinlaiteTi11Si10Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
1.BB.ToledoiteTiFeSiOrth. mm2 : Ima2
1.BB.YeiteTiSiOrth. mmm (2/m 2/m 2/m) : Pnma
1.BB.05Suessite(Fe,Ni)3SiIso. m3m (4/m 3 2/m) : Im3m
1.BB.10UM2001-18-Si:CuPtSn(Cu,Pt)4Si
1.BB.10Perryite(Ni,Fe)5(Si,P)2Trig. 3m : R3c
1.BB.15NaquiteFeSiIso. 2 3 : P21 3
1.BB.20LinzhiiteFeSi2Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.BB.25LuobusaiteFe0.84Si2Orth. mmm (2/m 2/m 2/m) : Cmca
1.BB.30GupeiiteFe3SiIso. m3m (4/m 3 2/m) : Fm3m
1.BB.35HapkeiteFe2SiIso. m3m (4/m 3 2/m) : Pm3m
1.BB.40XifengiteFe5Si3Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
1.BB.45CarletonmooreiteNi3SiIso. m3m (4/m 3 2/m) : Pm3m
1.BB.55PalladosilicidePd2SiHex. 6 m2 : P62m
1.BB.65ZhiqiniteTiSi2Orth. mmm (2/m 2/m 2/m) : Fddd

Other InformationHide

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 MavlyanoviteHide

References for MavlyanoviteHide

Localities for MavlyanoviteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- 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.
Ukraine
 
  • Donetsk Oblast
    • Azov Sea Region
      • Eastern Azov area
in: Jambor et al. (1920) +1 other reference
Uzbekistan (TL)
 
  • Tashkent
    • Chatkal-Kuraminskii Range
      • Koshmansay River
Yusupov et al. (2009)
 
Mineral and/or Locality  
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