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Ordoñezite

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Big Photo

Santín Mine, Cerro de las Fajas, Santa Catarina, Mun. de Santa Catarina, Guanajuato, Mexico
© AVK

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Formula:
ZnSb
 
2
O
 
6
System:TetragonalColour:Very light to very dark ...
Hardness:6½
Name:After Ezequiel Ordoñez (1867-1950), formerly head of the Instituto de Geologia de Mexico.


Tapiolite Group.

Classification of Ordoñezite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/D.04-60
Nickel-Strunz 10th (pending) edition ID:4.DB.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
Dana 8th edition ID:44.2.1.2

44 : ANTIMONATES
2 : AX2O6
Hey's CIM Ref.:24.2.4

24 : Antimonates and Antimonites
2 : Antimonates of Be, Mg, Ca, Zn or Hg
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Type Occurrence of Ordoñezite

Type Locality:Santín Mine, Cerro de las Fajas, Santa Catarina, Mun. de Santa Catarina, Guanajuato, Mexico
Year of Discovery:1953
Geological Setting of type material:Cassiterite bearing veins in rhyolite.

Physical Properties of Ordoñezite

Lustre:Adamantine
Colour:Very light to very dark brown, variable from colorless to pearl gray, olive buff to dark olive, light yellowish olive, bone brown (Ridgeway), transparent.
Hardness (Mohs):6½
Cleavage:None Observed
Fracture:Conchoidal
Density (measured):6.635 g/cm3
Density (calculated):6.657 g/cm3

Crystallography of Ordoñezite

Crystal System:Tetragonal
Cell Parameters:a = 4.66Å, c = 9.26Å
Ratio:a:c = 1 : 1.987
Unit Cell Volume:V 201.09 ų (Calculated from Unit Cell)
Morphology:Drusy or stalactitic masses of repeatedly twinned tetragonal crystals having a maximum size of 2 mm.
Twinning:Twin plane (013)
Crystal Atlas:
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Ordoñezite - {011}, {001}, {100}

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Optical Data of Ordoñezite

Type:Uniaxial (+)
Comments:RI > 2.0

Chemical Properties of Ordoñezite

Formula:
ZnSb
 
2
O
 
6
Essential elements:O, Sb, Zn
All elements listed in formula:O, Sb, Zn
Common Impurities:Al,Si

Relationship of Ordoñezite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DB.05Argutite
GeO
 
2
4.DB.05Cassiterite
SnO
 
2
4.DB.05Plattnerite
PbO
 
2
4.DB.05Pyrolusite
MnO
 
2
4.DB.05Rutile
TiO
 
2
4.DB.05Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4
4.DB.05Tugarinovite
MoO
 
2
4.DB.05Varlamoffite
(Sn,Fe)(O,OH)
 
2
4.DB.10Byströmite
MgSb
 
2
O
 
6
4.DB.10Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
4.DB.10Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
4.DB.15bAkhtenskite
ε-Mn
4+
 
O
 
2
4.DB.15cNsutite
(Mn
4+
 
,Mn
2+
 
)(O,OH)
 
2
4.DB.15aParamontroseite
V
4+
 
O
 
2
4.DB.15aRamsdellite
Mn
4+
 
O
 
2
4.DB.20Scrutinyite
alpha-PbO
 
2
4.DB.25Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
4.DB.25Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
4.DB.25Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Srilankite
Ti
 
2
ZrO
 
6
4.DB.25Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
4.DB.25Calciosamarskite
(Ca,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
4.DB.25Samarskite-(Yb)
(Yb,Fe
3+
 
)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.30Ferberite
FeWO
 
4
4.DB.30Hübnerite
MnWO
 
4
4.DB.30Sanmartinite
(Zn,Fe)WO
 
4
4.DB.30Krasnoselskite
CoWO
 
4
4.DB.30Heftetjernite
ScTaO
 
4
4.DB.30Huanzalaite
MgWO
 
4
4.DB.35Columbite-(Fe)
FeNb
 
2
O
 
6
4.DB.35Tantalite-(Fe)
FeTa
 
2
O
 
6
4.DB.35Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
4.DB.35Tantalite-(Mn)
MnTa
 
2
O
 
6
4.DB.35Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
4.DB.35Qitianlingite
(Fe,Mn)
 
2
(Nb,Ta)
 
2
WO
 
10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)
(Mg,Fe
2+
 
)(Ta,Nb)
 
2
O
 
6
4.DB.40Ferrowodginite
FeSnTa
 
2
O
 
8
4.DB.40Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
4.DB.40Lithiowodginite
LiTa
 
3
O
 
8
4.DB.40Titanowodginite
MnTiTa
 
2
O
 
8
4.DB.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
4.DB.40Ferrotitanowodginite
Fe
2+
 
TiTa
 
2
O
 
8
4.DB.40Wolframowodginite
Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)
 
2
O
 
8
4.DB.45Tivanite
V
3+
 
TiO
 
3
(OH)
4.DB.50Carmichaelite
(Ti,Cr,Fe)[O
 
2-x
(OH)
 
x
]
4.DB.55Alumotantite
AlTaO
 
4
4.DB.60Biehlite
((Sb,As)O)
 
2
[MoO
 
4
]
Related Minerals - Hey's Index Grouping:

- +
24.2.1Swedenborgite
NaBe
 
4
Sb
5+
 
O
 
7
24.2.2Byströmite
MgSb
 
2
O
 
6
24.2.3Roméite Group
24.2.5Theisite
Cu
 
5
Zn
 
5
(AsO
 
4
,SbO
 
4
)
 
2
(OH)
 
14
24.2.6Shakhovite
(Hg
+
2
)Hg
2+
2
(Sb
3+
 
O
 
3
)(OH)
 
3

Other Names for Ordoñezite

Other Languages:
German:Ordonezit
Russian:Ордоньезит
Spanish:Ordonezita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ordoñezite

Reference List:

- +
American Mineralogist (1955): 40: 64-69.

Internet Links for Ordoñezite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Ordonezite details from Handbook of Mineralogy (PDF)
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    • Localities for Ordoñezite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Canada
     
    • Ontario
      • Hastings Co.
        • Madoc Area
          • Huntingdon Township
    		Josef Vajdak (2008) Mineral News, 24, #3, 15.
    Germany
     
    • North Rhine-Westphalia
      • Sauerland
        • Iserlohn
          • Letmathe
    Mexico
     
    • Durango
      • Mun. de Coneto de Comonfort
        • América-Sapioris (Potrillos) District
          • Sapioris
    		Can Min 40, 4, (2002), 1207-1210
    • Guanajuato
      • Mun. de Santa Catarina
        • Santa Catarina
          • Cerro de las Fajas
    		Panczner (1987): 289.; Am Min (1955) 40 (1-2), 64-69
    Switzerland
     
    • Ticino (Tessin)
      • Malcantone
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 291.
    USA
     
    • New Mexico
      • Socorro Co.
    		Minerals of New Mexico 3rd ed.
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