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Schreyerite

A valid IMA mineral species
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07525900014947885412353.jpg
Schreyerite, etc.

SĂ€tra Mine, Doverstorp ore field, FinspĂ„ng, Östergötland County, Sweden
04074210014961673646030.jpg
Schreyerite, etc.

Lasamba Hill, Kwale County, Kenya
07525900014947885412353.jpg
Schreyerite, etc.

SĂ€tra Mine, Doverstorp ore field, FinspĂ„ng, Östergötland County, Sweden
04074210014961673646030.jpg
Schreyerite, etc.

Lasamba Hill, Kwale County, Kenya
05535790014947025147566.jpg
Schreyerite, etc.

SĂ€tra Mine, Doverstorp ore field, FinspĂ„ng, Östergötland County, Sweden
04074210014961673646030.jpg
Schreyerite, etc.

Lasamba Hill, Kwale County, Kenya
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About SchreyeriteHide

09591360015212447296300.jpg
Werner Schreyer
Formula:
V3+2Ti3O9
Colour:
Reddish brown
Lustre:
Metallic
Hardness:
7
Specific Gravity:
4.46 (Calculated)
Crystal System:
Monoclinic
Name:
For German mineralogist, Werner Schreyer (November 14 1930, NĂŒrnberg - February 12 2006, Bochum). He was a professor at Ruhr University Bochum from 1966-1996. He was awarded the Abraham-Gottlob-Werner Medal (German Mineralogical Society) in 1991 and the Roebling Medal (Mineralogical Society of America) in 2002. He made significant mineralogical and petrological contributions on kornerupine- and sapphirine-bearing rocks.
The V analogue of machiite. Chemically, but not structurally, the V analogue of pseudorutile.


Unique IdentifiersHide

Mindat ID:
3583
Long-form identifier:
mindat:1:1:3583:1
GUID
(UUID V4):
c3029d27-0254-4ecc-831d-2300ff5ae6bc

IMA Classification of SchreyeriteHide

IMA status:
Approved
IMA Formula:
V3+2Ti4+3O9
Approval year:
1976
First published:
1976
Type description reference:
Medenbach, O., Schmetzer, K. (1976) Schreyerit (V2Ti3O9), ein neues Vanadium-Mineral aus Kenya. Naturwissenschaften: 63: 293-294.

Classification of SchreyeriteHide

Strunz-mindat (2024):
4.CB.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Dana 8th ed.:
8.4.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
4 : A2B3O9
Hey's CIM Ref.:
7.12.14

7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta

Mineral SymbolsHide

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

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

Physical Properties of SchreyeriteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Reddish brown
Hardness:
7 on Mohs scale
Hardness:
VHN100=1100 - 1200 - Vickers
Density:
4.46 g/cm3 (Calculated)

Optical Data of SchreyeriteHide

Type:
Biaxial
RI values:
nα = 2.700
Max Birefringence:
δ = 2.700
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Anisotropism:
Moderate
Bireflectance:
White to brownish
Dispersion:
relatively strong
Colour in reflected light:
Gray
Internal Reflections:
None
Pleochroism:
Weak
Comments:
yellow-brown to reddish brown.
Comments:
The mean value of reflectivity for 546 nm (Na light) is 21%.

Chemistry of SchreyeriteHide

Mindat Formula:
V3+2Ti3O9
Elements listed:
O, Ti, V - search for minerals with similar chemistry

Crystallography of SchreyeriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 17.102(2) Å, b = 5.0253(5) Å, c = 7.0579(8) Å
β = 106.636(10)°
Ratio:
a:b:c = 3.403 : 1 : 1.404
Unit Cell V:
581.19 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Occurs in intergrowth with rutile.
Twinning:
Very fine polysynthetic twinning.
Comment:
Point Group: n.d.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0004005SchreyeriteDobelin N, Reznitsky L Z, Sklyarov E V, Armbruster T, Medenbach O (2006) Schreyerite, V2Ti3O9: New occurrence and crystal structure American Mineralogist 91 196-2022006Sludyanka complex at the southern shore of Lake Baikal, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.737 Å(vs)
2.874 Å(s)
4.075 Å(m)
3.381 Å(m)
2.432 Å(w)
2.518 Å(vvw)
2.310 Å(vvw)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of SchreyeriteHide

Type Locality:
ⓘ Lasamba Hill, Kwale County, Kenya
Place of Conservation of Type Material:
University of Heidelberg, Heidelberg, Germany; National Museum of Natural History, Washington, D.C., USA, 136230.
Geological Setting of Type Material:
Intergrowths with rutile in highly metamorphosed gneiss.
Associated Minerals at Type Locality:
TourmalineRutileQuartzPyrrhotitePentlandite
KornerupineGraphiteEpidoteDiopsideChalcopyrite
Biotite
Reference:
Medenbach, O., Schmetzer, K. (1976) Schreyerit (V2Ti3O9), ein neues Vanadium-Mineral aus Kenya. Naturwissenschaften: 63: 293-294.
Download:
https://rruff.info/rruff_1.0/uploads/N63_293.pdf

Synonyms of SchreyeriteHide

Other Language Names for SchreyeriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Schreyerite associated with ChalcopyriteCuFeS2
1 photo of Schreyerite associated with BerdesinskiiteV3+2TiO5
1 photo of Schreyerite associated with KornerupineMg3Al6(Si,Al,B)5O21(OH)
1 photo of Schreyerite associated with Olkhonskite(Cr,V)2Ti3O9
1 photo of Schreyerite associated with RutileTiO2

Related Minerals - Strunz-mindat GroupingHide

4.CB.Ferrohögbomite-2N2S[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2Hex. 6mm : P63mc
4.CB.Magnesiohögbomite-6N12SMg5Al11TiO23(OH)Trig. 3m (3 2/m) : R3m
4.CB.Zhenruite(MoO3)2 · H2OMon. 2/m : P21/m
4.CB.Pengite(Pb8Sb3+3)ÎŁ11Sb5+9O35Trig. 3m (3 2/m) : R3m
4.CB.VirgilluethiteMoO3 · H2OMon. 2/m : P21/b
4.CB.05BrizziiteNaSb5+O3Trig. 3 : R3
4.CB.05CorundumAl2O3Trig. 3m (3 2/m) : R3c
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3Trig. 3 : R3
4.CB.05EskolaiteCr2O3Trig. 3m (3 2/m) : R3c
4.CB.05GeikieliteMgTiO3Trig. 3 : R3
4.CB.05HematiteFe2O3Trig. 3m (3 2/m) : R3c
4.CB.05IlmeniteFe2+TiO3Trig. 3 : R3
4.CB.05KarelianiteV3+2O3Trig. 3m (3 2/m) : R3c
4.CB.05MelanostibiteMn2+2Fe3+Sb5+O6Trig. 3 : R3
4.CB.05PyrophaniteMn2+TiO3Trig. 3 : R3
4.CB.05Akimotoite(Mg,Fe2+)SiO3Trig. 3 : R3
4.CB.05AuroantimonateAuSbO3
4.CB.05UM1998-11-O-AuHSbAu+2Sb3+O2(OH)
4.CB.05TistariteTi3+2O3Trig. 3m (3 2/m) : R3c
4.CB.05Unnamed (Fe-Cr Oxide)FeCrO3Trig. 3 : R3
4.CB.05Hemleyite(Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3Trig. 3 : R3
4.CB.10AvicenniteTl2O3Iso. m3 (2/m 3) : Ia3
4.CB.10Bixbyite-(Mn)Mn3+2O3Iso. m3 (2/m 3) : Ia3
4.CB.10Bixbyite-(Fe)(Fe,Mn)2O3Iso.
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5Orth. mmm (2/m 2/m 2/m)
4.CB.15SassiteTi3+2Ti4+O5Orth. mmm (2/m 2/m 2/m) : Cmcm
4.CB.15PseudobrookiteFe2TiO5Orth. mmm (2/m 2/m 2/m)
4.CB.15FerropseudobrookiteFe2+Ti2O5Orth. mmm (2/m 2/m 2/m) : Cmcm
4.CB.15GriffiniteAl2TiO5Orth. mmm (2/m 2/m 2/m) : Cmcm
4.CB.15Pseudobrookite Group
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2Hex. 6mm : P63mc
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2Hex. 6mm : P63mc
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6Trig. 3m (3 2/m) : R3m
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2Trig. 3m (3 2/m) : P3 1m
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2Hex. 6mm : P63mc
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6Trig. 3m (3 2/m) : R3m
4.CB.20Magnesiohögbomite-2N4S(Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2Hex. 6mm : P63mc
4.CB.20Magnesiobeltrandoite-2N3S(Mg6Al2)(Al18Fe3+2)O38(OH)2 Trig. 3m : P3m1
4.CB.20Zincovelesite-6N6SZn3(Fe3+,Mn3+,Al,Ti)8O15(OH)Trig. 3m (3 2/m) : P3m1
4.CB.25PseudorutileFe2Ti3O9Hex. 6 2 2 : P63 2 2
4.CB.25KleberiteFeTi6O11(OH)5Mon. 2/m : P21/b
4.CB.30BerdesinskiiteV3+2TiO5Mon.
4.CB.30OxyvaniteV3+2V4+O5Mon. 2/m : B2/b
4.CB.30KaitianiteTi3+2Ti4+O5Mon. 2/m : B2/b
4.CB.35Olkhonskite(Cr,V)2Ti3O9Mon.
4.CB.35MachiiteAl2Ti3O9Mon. 2/m : B2/b
4.CB.35Vestaite(Ti4+Fe2+)Ti4+3O9Mon. 2/m : B2/b
4.CB.40KamiokiteFe2Mo3O8Hex. 6mm : P63mc
4.CB.40NolaniteV3+8Fe3+2O14(OH)2Hex. 6mm : P63mc
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2Hex. 6 : P63
4.CB.40IseiteMn2Mo3O8Hex. 6mm : P63mc
4.CB.40MajindeiteMg2Mo3O8Hex. 6mm : P63mc
4.CB.45ClaudetiteAs2O3Mon. 2/m
4.CB.45StibioclaudetiteAsSbO3Mon. 2/m : P21/m
4.CB.50ArsenoliteAs2O3Iso. m3m (4/m 3 2/m) : Fd3m
4.CB.50SenarmontiteSb2O3Iso. m3m (4/m 3 2/m) : Fd3m
4.CB.55ValentiniteSb2O3Orth. mmm (2/m 2/m 2/m) : Pccn
4.CB.60BismiteBi2O3Mon. 2/m : P21/b
4.CB.65SphaerobismoiteBi2O3Tet.
4.CB.70SilléniteBi12SiO20Iso. 2 3 : I2 3
4.CB.75KyzylkumiteV3+Ti2O5(OH)Mon. 2/m : P21/b
4.CB.80TietaiyangiteFe3+4Fe2+TiO9Hex.
4.CB.85LiuiteFeTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CB.90LuogufengiteFe2O3Orth. mm2 : Pna21
4.CB.95WangdaodeiteFeTiO3Trig. 3m : R3c

Other InformationHide

Notes:
No solubility in inorganic acids.
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 SchreyeriteHide

References for SchreyeriteHide

Reference List:
Medenbach, O., Schmetzer, K. (1976) Schreyerit (V2Ti3O9), ein neues Vanadium-Mineral aus Kenya. Naturwissenschaften: 63: 293-294.
Fleischer, M., Jambor, J. (1977) New mineral names. American Mineralogist: 62: 395-397.
Medenbach, Olaf, Schmerzer, Karl (1978) Schreyerite, V2Ti3O9, a new mineral. American Mineralogist, 63 (11-12) 1182-1186
Zakrzewski, M. A., Burke, E. A. J., Lustenhouwer, W. J. (1982) Vuorelainenite, a new spinel, and associated minerals from the Satra (Doverstorp) pyrite deposit, central Sweden. The Canadian Mineralogist, 20 (2) 281-290
Bernhardt, H. J., Schmetzer, K., Medenbach, O. (1983) Berdesinskiite, V2TiO5, a new mineral from Kenya and additional data for schreyerite, V2Ti3O9. Neues Jahrbuch fĂŒr Mineralogie - Monatshefte, 1983. 110-118
Boronikhin, V.A., Dmitrieva, M.T., Koneva, A.A., Korikovskii, S.P. (1990) Chromian schreyerite and chromium-vanadium-manganese-iron-zinc spinel in sillimanite-cordierite quartzitic schists in of the Olkhon region, southwestern Baikalia. Doklady Akademii Nauk SSSR: 314: 447-451.
Höller, W., Stumpfl, E.F. (1995) Cr-V oxides from the Rampura-Agucha Pb-Zn-(Ag) deposit, Rajasthan, India. Canadian Mineralogist, 33, 745-752.
Cell parameters from Döbelin et al. (2006).
Döbelin, Nicola, Reznitsky, Leonid Z., Sklyarov, Evgeny V., Armbruster, Thomas, Medenbach, Olaf (2006) Schreyerite, V2Ti3O9: New occurrence and crystal structure. American Mineralogist, 91 (1) 196-202 doi:10.2138/am.2006.1893
Reznitsky, L. Z., Sklyarov, E. V., Armbruster, T., Ushchapovskaya, Z. F., Galuskin, E. V., Polekhovsky, Yu. S., Barash, I. G. (2010) Oxyvanite, V3O5, a new mineral species and the oxyvanite-berdesinskiite V2TiO5 series from metamorphic rocks of the Slyudyanka Complex, southern Baikal region. Geology of Ore Deposits, 52 (7) 574-583 doi:10.1134/s1075701510070068
Houzar, S., CempĂ­rek, J. (2011) Accessory schreyerite in vanadium-rich graphite quartzite at BĂ­tovĂĄnky (Moldanubicum, western Moravia). Acta Musei Moraviae, Scientiae Geologicae Paper: 96(2): 35-43.
Di Cecco, Veronica E., Tait, Kimberly T., Spooner, Edward T.C., Scherba, Craig (2018) The Vanadium-bearing Oxide Minerals of the Green Giant Vanadium-graphite Deposit, Southwest Madagascar. The Canadian Mineralogist, 56 (3) 247-257 doi:10.3749/canmin.1700068
(2023) Schreyerite. Handbook of Mineralogy. Mineralogical Society of America

Localities for SchreyeriteHide

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.
China
 
  • Zhejiang
    • Hangzhou
      • Yuhang District
Huijin Lu and Jian Wang (2005)
Czech Republic
 
  • Plzeƈ Region
    • Plzeƈ-South District
      • NovĂ© Mitrovice
VeselovskĂœ et al. (2021)
  • Vysočina Region
    • Tƙebíč District
      • Ćœeletava
        • BĂ­tovĂĄnky
Houzar et al. (2011)
Fiji
 
  • Viti Levu
    • Navilawa
16th Australian Geological Convention +3 other references
Finland
 
  • North Ostrobothnia
    • Raahe
Kompanchenko et al. (2018)
India
 
  • Rajasthan
    • Bhilwara District
Höller et al. (1997) +1 other reference
Kenya (TL)
 
  • Kwale County
Lapis 8 (4) +1 other reference
Madagascar
 
  • Atsimo-Andrefana
    • Ampanihy District
      • Fotadrevo
        • Green Giant Vanadium Property
Di Cecco et al. (2018)
Di Cecco et al. (2018)
Russia
 
  • Chelyabinsk Oblast
    • Ilmen Mountains
Dubinina et al. (2011, July)
  • Irkutsk Oblast
    • Lake Baikal area
Mandarino (1996) +2 other references
N. Dobelin et al.: American Mineralogist 91:196-202 (2006)
Proceedings of the Russian Mineralogical Society 136 (5) +2 other references
  • Murmansk Oblast
    • Pechengsky District
      • Pechenga Ni-Cu ore field
Kompanchenko et al. (2019)
  • Republic of Karelia
    • Medvezhyegorsky District
      • Zaonezhie peninsula
Pavel M/ Kartashov analytical data (2013)
Spain
 
  • Catalonia
    • Lleida
      • El Pallars JussĂ 
        • La Vall Fosca
          • La Torre de Cabdella
            • Castell-estaĂł
Castillo-Oliver et al. (2019)
Sweden
 
  • Östergötland County
    • FinspĂ„ng
      • Doverstorp ore field
Zakrzewski et al (1982) +2 other references
Zambia
 
  • North-Western Province
    • Solwezi District
MacIntyre (2019)
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