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Schreyerite

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Formula:
V23+Ti3O9
System:
Monoclinic
Colour:
Black
Hardness:
7
Name:
For German mineralogist, Werner Schreyer (b. 1930).
This page provides mineralogical data about Schreyerite.

Classification of Schreyerite

Approved 1976
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
8.4.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
4 : A2B3O9
7.12.14

7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta
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http://www.mindat.org/min-3583.html
Please feel free to link to this page.

Type Occurrence of Schreyerite

Year of Discovery:
1976

Physical Properties of Schreyerite

Metallic
Colour:
Black
Hardness (Mohs):
7

Crystallography of Schreyerite

Crystal System:
Monoclinic
Cell Parameters:
a = 7.06Å, b = 5.01Å, c = 18.74Å
β = 119.4°
Ratio:
a:b:c = 1.409 : 1 : 3.741
Unit Cell Volume:
V 577.48 ų (Calculated from Unit Cell)

Optical Data of Schreyerite

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
Dispersion:
relatively strong

Chemical Properties of Schreyerite

Formula:
V23+Ti3O9
Essential elements:
All elements listed in formula:

Relationship of Schreyerite to other Species

4.CB.05BrizziiteNaSb5+O3
4.CB.05CorundumAl2O3
4.CB.05Ecandrewsite(Zn,Fe2+,Mn2+)TiO3
4.CB.05EskolaiteCr2O3
4.CB.05GeikieliteMgTiO3
4.CB.05HematiteFe2O3
4.CB.05IlmeniteFe2+TiO3
4.CB.05KarelianiteV23+O3
4.CB.05MelanostibiteMn2+(Sb5+,Fe3+)O3
4.CB.05PyrophaniteMn2+TiO3
4.CB.05Akimotoite(Mg,Fe2+)SiO3
4.CB.05AuroantimonateAuSbO3
4.CB.05Romanite(◻,Pb,Ca)UFe22+(Ti,Fe3+)6Ti12O38
4.CB.05UM1998-11-O-AuHSbAu2+Sb3+O2(OH)
4.CB.05TistariteTi23+O3
4.CB.10AvicenniteTl2O3
4.CB.10BixbyiteMn23+O3
4.CB.15Armalcolite(Mg,Fe2+)Ti2O5
4.CB.15PseudobrookiteFe2TiO5
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2
4.CB.20Ferrohögbomite-6N12S[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6
4.CB.25PseudorutileFe2Ti3O9
4.CB.25KleberiteFeTi6O11(OH)5
4.CB.30BerdesinskiiteV23+TiO5
4.CB.30OxyvaniteV23+V4+O5
4.CB.35Olkhonskite(Cr,V)2Ti3O9
4.CB.40KamiokiteFe2Mo3O8
4.CB.40Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2
4.CB.40IseiteMn2Mo3O8
4.CB.40MajindeiteMg2Mo3O8
4.CB.45ClaudetiteAs2O3
4.CB.45StibioclaudetiteAsSbO3
4.CB.50ArsenoliteAs2O3
4.CB.50SénarmontiteSb2O3
4.CB.55ValentiniteSb2O3
4.CB.60BismiteBi2O3
4.CB.65SphaerobismoiteBi2O3
4.CB.70SilléniteBi12SiO20
4.CB.75KyzylkumiteTi2V3+O5(OH)
4.CB.80TietaiyangiteFe43+Fe2+TiO9
7.12.1Montroseite(V3+,Fe3+)O(OH)
7.12.2 Scherbinaite
7.12.3ParamontroseiteV4+O2
7.12.4HäggiteV3+V4+O2(OH)3
7.12.5DuttoniteV4+O(OH)2
7.12.6DoloresiteV34+O4(OH)4
7.12.7LenobliteV24+O4 · 2H2O
7.12.8NavajoiteFe3+V95+O24 · 12H2O
7.12.9VanoxiteV44+V25+O13 · 8H2O
7.12.10BarianditeAl0.6(V5+,V4+)8O20 · 9H2O
7.12.11Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O
7.12.12SimplotiteCaV44+O9 · 5H2O
7.12.13KyzylkumiteTi2V3+O5(OH)
7.12.15BerdesinskiiteV23+TiO5
7.12.16TivaniteV3+TiO3(OH)
7.12.17MannarditeBa(Ti64+V23+)O16
7.12.18KarelianiteV23+O3
7.12.19CoulsoniteFe2+V23+O4
7.12.20Nolanite(V3+,Fe3+,Fe2+,Ti)10O14(OH)2
7.12.21Vuorelainenite(Mn,Fe)(V,Cr)2O4
7.12.22TantiteTa2O5
7.12.23Kimrobinsonite(Ta,Nb)(OH)5-2x(O,CO3)x ; x near 1.2

Other Names for Schreyerite

Name in Other Languages:
German:Schreyerit
Simplified Chinese:钒钛矿
Spanish:Schreyerita

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.

References for Schreyerite

Reference List:
American Mineralogist (1978): 63: 1182-1186.

Neues Jahrbuch für Mineralogie, Monatshefte (1983): 110.

Dobelin, N., Reznitsky, L.Z., Sklyarov, E.V., Armbruster, Th., Medenbach, O. (2006): Schreyerite, V2Ti3O9: new occurrence and crystal structure. American Mineralogist, 91, 196-202.

Internet Links for Schreyerite

Localities for Schreyerite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
China
 
  • Zhejiang Province
    • Hangzhou Prefecture
      • Yuhang District
Huijin Lu and Jian Wang (2005): Mineral Deposits 24(5), 567-574
Fiji
 
  • Viti Levu
    • Tavua Gold Field
      • Vatukoula
16th Australian Geological Convention, Adelaide, ; Spry, P. G., & Scherbarth, N. L. (2006). The gold–vanadium–tellurium association at the Tuvatu gold–silver prospect, Fiji: conditions of ore deposition. Mineralogy and Petrology, 87(3-4), 171-186
India
 
  • Rajasthan (Rajputana)
    • Ajmer Division
      • Bhilwara District
Höller, W., and Gandhi, S.M. (1997): Mineralogy and Petrology 60, 99-119.
Kenya (TL)
 
  • Coast Province
    • Kwale District
Lapis 8(4), 25 (1983)
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Lake Baikal area
[MinRec 27:304]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
N. Dobelin et al.: American Mineralogist 91:196-202 (2006)
Proceedings of the Russian Mineralogical Society 136(5), 65-75.; Bosi, F., Reznitskii, L., Skogby, H., & Hålenius, U. (2014). Vanadio-oxy-chromium-dravite, NaV3 (Cr4Mg2)(Si6O18)(BO3) 3 (OH) 3O, a new mineral species of the tourmaline supergroup. American Mineralogist, 99(5-6), 1155-1162.
  • Northern Region
    • Karelia Republic
      • Lake Onega
        • Zaonezhie peninsula
          • Velikaya Guba uran-vanadium deposit
Pavel M/ Kartashov analytical data (2013)
Sweden
 
  • Östergötland
    • Finspång
      • Doverstorp ore field
Zakrzewski et al (1982): Can.Min. 20, 281-290; Döbelin, N., Reznitsky, L. Z., Sklyarov, E. V., Armbruster, T. & Medenbach, O. (2006): Schreyerite, V2Ti3O9: New occurrence and crystal structure. American Mineralogist. 91, 196-202
Mineral and/or Locality  
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