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Ojuelaite

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Mina Ojuela, Mapimí, Durango, México

Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico
Formula:
ZnFe23+(AsO4)2(OH)2 · 4H2O
System:
Monoclinic
Hardness:
3
Member of:
Name:
Named in 1981 by Fabien Cesbron, Miguel Romero Sanchez, and Sidney A. Williams for the type locality, Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico.

Classification of Ojuelaite

Approved
Approval Year:
1979
8.DC.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
42.11.20.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
20.3.20

20 : Arsenates (also arsenates with phosphate, but without other anions)
3 : Arsenates of Zn, Cd or Hg

Physical Properties of Ojuelaite

Hardness (Mohs):
3

Optical Data of Ojuelaite

Type:
Biaxial (+)
RI values:
nα = 1.696 nβ = 1.730 nγ = 1.798
2V:
Measured: 73° , Calculated: 74°
Max Birefringence:
δ = 0.102
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v

Chemical Properties of Ojuelaite

Formula:
ZnFe23+(AsO4)2(OH)2 · 4H2O
Elements listed in formula:

Crystallography of Ojuelaite

Crystal System:
Monoclinic
Cell Parameters:
a = 10.24 Å, b = 9.66 Å, c = 5.56 Å
β = 94.37°
Ratio:
a:b:c = 1.06 : 1 : 0.576
Unit Cell Volume:
V 548.39 ų (Calculated from Unit Cell)

Type Occurrence of Ojuelaite

Relationship of Ojuelaite to other Species

Member of:
Other Members of Group:
ArthuriteCuFe23+(AsO4)2(OH)2 · 4H2O
BendadaiteFe2+Fe23+(AsO4)2(OH)2 · 4H2O
Cobaltarthurite(Co,Mg)Fe23+(AsO4)2(OH)2 · 4H2O
EarlshannoniteMn2+Fe23+(PO4)2(OH)2 · 4H2O
KunatiteCuFe23+(PO4)2(OH)2 · 4H2O
UKI-2006-(PO:AlCuFeH)Fe2+Al23+(PO4)2(OH)2 · 4H2O
UKI-2006-(PO:FeHZn)ZnFe23+(PO4)2(OH)2 · 4H2O
WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
8.DC.05NissoniteCu2Mg2(PO4)2(OH)2 · 5H2O
8.DC.07EuchroiteCu2(AsO4)(OH) · 3H2O
8.DC.10LegranditeZn2(AsO4)(OH) · H2O
8.DC.12StrashimiriteCu8(AsO4)4(OH)4 · 5H2O
8.DC.15ArthuriteCuFe23+(AsO4)2(OH)2 · 4H2O
8.DC.15EarlshannoniteMn2+Fe23+(PO4)2(OH)2 · 4H2O
8.DC.15WhitmoreiteFe2+Fe23+(PO4)2(OH)2 · 4H2O
8.DC.15Cobaltarthurite(Co,Mg)Fe23+(AsO4)2(OH)2 · 4H2O
8.DC.15BendadaiteFe2+Fe23+(AsO4)2(OH)2 · 4H2O
8.DC.15KunatiteCuFe23+(PO4)2(OH)2 · 4H2O
8.DC.15UKI-2006-(PO:FeHZn)ZnFe23+(PO4)2(OH)2 · 4H2O
8.DC.15UKI-2006-(PO:AlCuFeH)Fe2+Al23+(PO4)2(OH)2 · 4H2O
8.DC.17KleemaniteZnAl2(PO4)2(OH)2 · 3H2O
8.DC.20BermaniteMn2+Mn23+(PO4)2(OH)2 · 4H2O
8.DC.20CoralloiteMn2+Mn23+(AsO4)2(OH)2 · 4H2O
8.DC.22KovdorskiteMg2(PO4)(OH) · 3H2O
8.DC.25FerristrunziteFe3+Fe23+(PO4)2(OH)3 · 5H2O
8.DC.25FerrostrunziteFe2+Fe23+(PO4)2(OH)2 · 6H2O
8.DC.25MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
8.DC.25MetavivianiteFe2+Fe23+(PO4)2(OH)2 · 6H2O
8.DC.25StrunziteMn2+Fe23+(PO4)2(OH)2 · 6H2O
8.DC.27BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
8.DC.30GordoniteMgAl2(PO4)2(OH)2 · 8H2O
8.DC.30LaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
8.DC.30MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2O
8.DC.30ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2O
8.DC.30PseudolaueiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
8.DC.30SigloiteFe3+Al2(PO4)2(OH)3 · 7H2O
8.DC.30StewartiteMn2+Fe23+(PO4)2(OH)2 · 8H2O
8.DC.30UshkoviteMgFe23+(PO4)2(OH)2 · 8H2O
8.DC.30FerrolaueiteFe2+Fe23+(PO4)2(OH)2 · 8H2O
8.DC.30Kastningite(Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2O
8.DC.30MaghrebiteMgAl2(AsO4)2(OH)2 · 8H2O
8.DC.30NordgauiteMnAl2(PO4)2(F,OH)2 · 5H2O
8.DC.32TinticiteFe3+5.34(PO4)3.62(VO4)0.38(OH)4 · 6.7H2O
8.DC.35VauxiteFe2+Al2(PO4)2(OH)2 · 6H2O
8.DC.37VantasseliteAl4(PO4)3(OH)3 · 9H2O
8.DC.40CacoxeniteFe243+Al(PO4)17O6(OH)12 · 17H2O
8.DC.45Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
8.DC.45Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O
8.DC.47KingiteAl3(PO4)2F2(OH) · 7H2O
8.DC.50WavelliteAl3(PO4)2(OH,F)3 · 5H2O
8.DC.50AllanpringiteFe33+(PO4)2(OH)3 · 5H2O
8.DC.52KribergiteAl5(PO4)3(SO4)(OH)4 · 4H2O
8.DC.55MapimiteZn2Fe33+(AsO4)3(OH)4 · 10H2O
8.DC.57OgdensburgiteCa2Fe43+(Zn,Mn2+)(AsO4)4(OH)6 · 6H2O
8.DC.60Nevadaite(Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2O
8.DC.60CloncurryiteCu0.5(VO)0.5Al2(PO4)2F2 · 5H2O
20.3.1AdamiteZn2(AsO4)(OH)
20.3.2ParadamiteZn2(AsO4)(OH)
20.3.3KoritnigiteZn(HAsO4) · H2O
20.3.4LegranditeZn2(AsO4)(OH) · H2O
20.3.5WarikahniteZn3(AsO4)2 · 2H2O
20.3.6KöttigiteZn3(AsO4)2 · 8H2O
20.3.7StranskiiteZn2Cu(AsO4)2
20.3.8Philipsburgite(Cu,Zn)6(AsO4,PO4)2(OH)6 · H2O
20.3.9AustiniteCaZn(AsO4)(OH)
20.3.10ProsperiteCa2Zn4(AsO4)4•H2O ·
20.3.11GaititeCa2Zn(AsO4)2 · 2H2O
20.3.12ZincroseliteCa2Zn(AsO4)2 · 2H2O
20.3.13O'DanieliteNa(Zn,Mg)3H2(AsO4)3
20.3.14JohilleriteNa(Mg,Zn)3Cu(AsO4)3
20.3.15Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8
20.3.16Chudobaite(Mg,Zn)5(AsO4)2(HAsO4)2 · 10H2O
20.3.17Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6
20.3.18LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)
20.3.19Metaköttigite(Zn,Fe,Fe)3(AsO4)2 · 8(H2O,OH)
20.3.21FahleiteCaZn5Fe23+(AsO4)6 · 14H2O
20.3.22KeyiteCu32+Zn4Cd2(AsO4)6 · 2H2O

Other Names for Ojuelaite

Name in Other Languages:
German:Ojuelait
Spanish:Ojuelaita

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 Ojuelaite

Reference List:
Cesbron, F., Romero, S.M., Williams, A.S. (1981): La mapimite et l'ojuélaïte, deux nouveaux arséniates hydratés de zinc et de fer de la mine Ojuela, Mapimi, Mexique. Bull. Minéral. 104, 582-586.

American Mineralogist (1982): 67: 621-624.

Mineralogical Magazine: 60: 519-521.

Internet Links for Ojuelaite

mindat.org URL:
https://www.mindat.org/min-2965.html
Please feel free to link to this page.

Localities for Ojuelaite

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.
(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.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
U. Kolitsch, D. Atencio, N. V. Chukanov, N. V. Zubkova, L. A. D. Menezes Filho, J. M. V. Coutinho, W. D. Birch, J. Schlüter, D. Pohl, A. R. Kampf, I. M. Steele, G. Favreau, L. Nasdala, S. Möckel, G. Giester and D. Yu. Pushcharovsky (2010): Bendadaite, a new iron arsenate mineral of the arthurite group. Mineralogical Magazine 74, 469-486. [solid-solution member with bendadaite]
No reference listed
Lapis No.7/8 1999 p.70-74
            • Hilarion area
Fritz Schreiber collection
Mexico (TL)
 
  • Durango
    • Mun. de Mapimí
      • Mapimí
[Bull.Min.(1981) 104, 582-586; Clark, 1993 - "Hey's Mineral Index"]
Thomas P. Moore (2008) Lapis, 33, #7-8, 33-40.
Handbook of Mineralogy Vol. IV pg. 418.
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Ogdensburg
          • Sterling Hill
Dunn(1995):Pt5:675.
Mineral and/or Locality  
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