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Diaoyudaoite

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About DiaoyudaoiteHide

Formula:
NaAl11O17
Colour:
Colourless, light green
Lustre:
Vitreous
Hardness:
7½ - 8
Crystal System:
Hexagonal
Name:
Named for Diaoyudao Island, the Chinese name for the Senkaku islands.
NOTE: There is strong suspicion that diaoyudaoite, from all its known localities, is an INDUSTRIAL WASTE product (from chromium refining, corundum synthesis, etc.) and not a natural mineral.

Compare chukochenite.


Classification of DiaoyudaoiteHide

Approved
Approval Year:
1985
4.CC.45

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations
7.11.12.1

7 : MULTIPLE OXIDES
11 : Miscellaneous
7.2.2

7 : Oxides and Hydroxides
2 : Oxides of the alkali metals

Physical Properties of DiaoyudaoiteHide

Vitreous
Colour:
Colourless, light green
Hardness:
7½ - 8 on Mohs scale

Optical Data of DiaoyudaoiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.688 nε = 1.663
Max Birefringence:
δ = 0.025
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of DiaoyudaoiteHide

Formula:
NaAl11O17
Common Impurities:
Cr

Chemical AnalysisHide

Oxide wt%:
 1
SiO20.1 %
TiO20.1 %
Al2O383.8 %
V2O34.7 %
Mn2O30.2 %
MgO3.9 %
BaO0.1 %
Na2O3.7 %
K2O3.8 %
Total:100.4 %
Sample references:
IDLocalityReference
1Dellagiustaite type locality, Sierra de Comechingones, San Luis Province, ArgentinaFrank K. Mazdab collection sample FKM-202 (highest Na:K ratio material)

Crystallography of DiaoyudaoiteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 5.6 Å, c = 22.62 Å
Ratio:
a:c = 1 : 4.039
Unit Cell V:
614.33 ų (Calculated from Unit Cell)

Geological EnvironmentHide

Geological Setting:
Slag piles, waste dumps, and sites of illegal toxic waste dumping.

Type Occurrence of DiaoyudaoiteHide

Synonyms of DiaoyudaoiteHide

Other Language Names for DiaoyudaoiteHide

Related Minerals - Nickel-Strunz GroupingHide

4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.BitikleiteCa3SbSn(AlO4)3Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.Yttriaite-(Y)Y2O3Iso.
4.CC.Anzaite-(Ce)Ce3+ 4Fe2+Ti6O18 (OH)2Mon. 2/m : B2/m
4.CC.05ChrombismiteBi16CrO27Tet.
4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.
4.CC.15GrossiteCaAl4O7Mon. 2/m : B2/b
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 4 3m : I4 3d
4.CC.25YafsoaniteCa3Te6+2(ZnO4)3Iso. m3 (2/m 3)
4.CC.30LatrappiteCa2NbFe3+O6Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
4.CC.30NatroniobiteNaNbO3Mon.
4.CC.30PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30BarioperovskiteBaTiO3Orth. mm2 : Amm2
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30MegawiteCaSnO3Orth. mmm (2/m 2/m 2/m) : Pban
4.CC.35Loparite-(Ce)(Na,REE)Ti2O6Iso. m3m (4/m 3 2/m)
4.CC.35MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.CC.35TausoniteSrTiO3Iso. 4 3m
4.CC.35Isolueshite(Na,La)NbO3Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
4.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig.
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
4.CC.40Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3
4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45HiboniteCaAl12O19Hex.
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex.
4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2 : P3 1 2
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19Hex.
4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex.
4.CC.45Hibonite-(Fe)FeAl12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.50Jeppeite(K,Ba)2(Ti,Fe)6O13Mon.
4.CC.55ZenzénitePb3Fe4Mn3O15Hex.
4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.2.1Lithiophorite(Al,Li)MnO2(OH)2Trig. 3m (3 2/m) : R3m
7.2.3ManjiroiteNa(Mn4+7Mn3+)O16Tet. 4/m : I4/m
7.2.4CryptomelaneK(Mn4+7Mn3+)O16Mon. 2/m

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.

References for DiaoyudaoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Shen Shunxi, Chen Lirong, Li Anchun, Dong Tailu, Huang Qiuhuo, and Xu Wenqiang (1986): Diaoyudaoite - A new mineral. Acta Mineralogica Sinica 6(3), 224-227 (in Chinese with English abstract). - American Mineralogist (1987), 75, 240 (abstract).
Zhu, Naijue; Guo, Fang; Li, Yan; Shen, Shunxi; Chen, Lirong; Li, Anchun. (1992): Study on crystal structure of diaoyudaoite. Huaxue Xuebao 50, 527-32. (in Chinese).
Ye, Ying; Shen, Zhongyue; Shimizu, Masaaki; Shimazaki, Hidehiko (1998): Comparison between metallurgical byproduct beta-NaAl11O17 and diaoyudaoite and discussion on the possible source of diaoyudaoite. Kuangwu Xuebao 18, 97-100. (in Chinese).

Internet Links for DiaoyudaoiteHide

Localities for DiaoyudaoiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Argentina
 
  • San Luis Province
    • Sierra de Comechingones
Frank K. Mazdab collection
Belgium
 
  • Wallonia
    • Hainaut
      • Charleroi
        • Montignies-sur-Sambre
Giovanni Scapin collection
Germany
 
  • Lower Saxony
    • Goslar
      • Clausthal-Zellerfeld
Schnorrer-Köhler, G. (1991): Mineralogische Notizen V. Aufschluss 42, 155-171.
Japan (TL)
 
  • Okinawa Prefecture
    • Ishigaki City
      • Senkaku Islands (Diaoyudao Islands; Diaoyutai Islands)
Shunxi Shen, Lirong Chen, Anchun Li, Tailu Dong, Qiuhuo Huang, and Wenqiang Xu (1986): Acta Mineralogica Sinica 6(3), 224-227
Norway
 
  • Telemark
    • Nome
      • Fen complex
        • Søve Mines
Dahlgren, S. (2005): Miljøgeologisk undersøkelse av lavradioaktivt slagg fra ferroniobproduksjonen ved Norsk Bergverk på Søve 1956-1965. Regiongeologen for Buskerud, Telemark og Vestfold, Rapport nt 1, 2005. 19-28.
Russia
 
  • Novosibirsk Oblast
Excalibur Mineral specimen (anthropogenic)
USA
 
  • Massachusetts
    • Hampden Co.
      • Chester
        • Chester Emery Mines
Kevin Downey specimens (confirmed by PXRD by John Attard)
  • New Jersey
    • Essex Co.
      • Newark
Josef Vajdak (analysis by Petr Ondrush & F. Veselovsky, Czech Geol. Survey).
 
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