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Oboyerite

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About OboyeriteHide

01561100014946272685758.jpg
Oliver M. Boyer
Colour:
Milk white
Hardness:
Specific Gravity:
6.4
Crystal System:
Triclinic
Name:
Named in 1979 by S.A. Williams in honor of Oliver Michael Boyer (15 November 1842, New Hope, Ohio, USA - 14 September 1918, Medford, Oklahoma, USA), prospector. In 1878 he discovered several rich veins of silver in mines near Tombstone. After killing a man, he was sentenced to death but in 1883 he was released on the condition that he leave Arizona. He then took up a life of farming.
A Mixture Of:
First described as a new mineral in 1979 and discredited by CNMNC-IMA in 2019.

Typematerial consist of at least two distinct phases, ottoite and plumbotellurite.


Approval Year:
1979
First Published:
1979
Approval History:
1979: Approved as IMA 1979-009
2019: Discredited by CNMNC-IMA (proposal 19-D).

Classification of OboyeriteHide

4..

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
:
:
34.8.3.1

34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites
28.4.5

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates

Physical Properties of OboyeriteHide

Transparency:
Translucent
Colour:
Milk white
Hardness:
1½ on Mohs scale
Density:
6.4(6) g/cm3 (Measured)    6.66 g/cm3 (Calculated)

Optical Data of OboyeriteHide

Type:
Biaxial
RI values:
nα = 2.240 nγ = 2.260
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Optical Extinction:
Maximum at 37 degrees to elongation.

Crystallography of OboyeriteHide

Crystal System:
Triclinic
Cell Parameters:
a = 12.249(8) Å, b = 15.113(6) Å, c = 6.868(3) Å
α = 116.45(4)°, β = 98.58(4)°, γ = 85.82(4)°
Ratio:
a:b:c = 0.81 : 1 : 0.454
Unit Cell V:
1,125.54 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Tiny spherules

First Recorded Occurrence of OboyeriteHide

Place of Conservation of First Recorded Material:
Smithsonian Museum, Washington DC 162210
Geological Setting of First Recorded Material:
Mine dump.

Synonyms of OboyeriteHide

Other Language Names for OboyeriteHide

German:Oboyerit
Spanish:Oboyerita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Oboyerite associated with JarositeKFe3+3(SO4)2(OH)6
1 photo of Oboyerite associated with ChlorargyriteAgCl
1 photo of Oboyerite associated with CerussitePbCO3

Related Minerals - Nickel-Strunz GroupingHide

4..Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6ZIso. m3m (4/m 3 2/m) : Fd3m
4..Cesstibtantite
4..ParabariomicroliteBaTa4O10(OH)2 · 2H2OTrig.
4..Yttrobetafite (of Hogarth 1977)A2-mD2X6-wZ1-n
4..Mongshanite(Mg,Cr,Fe2+)2(Ti,Zr)5O12Hex.
4..Romanite(◻,Pb,Ca)UFe2+2(Ti,Fe3+)6Ti12O38
4..UM1999-29-SeO:ClCuHPbTric.
4..UM1999-32-SiOSiO2Orth. mmm (2/m 2/m 2/m) : Pbcn
4..MayeniteCa12Al14O32Cl2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.4.1XocomecatliteCu3(TeO4)(OH)4Orth.
28.4.2CarlfriesiteCaTe4+2Te6+O8Mon. 2/m : B2/b
28.4.3YafsoaniteCa3Te6+2(ZnO4)3Iso. m3 (2/m 3)
28.4.4TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2OOrth.
28.4.6SchieffelinitePb10Te6+6O20(OH)14(SO4)(H2O)5Orth. mmm (2/m 2/m 2/m) : Cmcm
28.4.7GirditeH2Pb3(Te4+O3)(Te6+O6)Mon. m
28.4.8KhinitePb2+Cu2+3[Te6+O6](OH)2Orth. mm2 : Fdd2
28.4.9Khinite-3TPb2+Cu2+3Te6+O6(OH)2Trig. 3 : P32
28.4.10DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.11KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
28.4.12CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
28.4.13Tlapallite(Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2·3H2OTrig. 3 2 : P3 2 1
28.4.14MontaniteBi2(TeO6) · 2H2O
28.4.15KuranakhitePbMn4+Te6+O6Orth.
28.4.16CuzticiteFe3+2(TeO6) · 3H2OHex.
28.4.17YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O

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 OboyeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, S.A. (1979) Girdite, oboyerite, fairbankite, and winstanleyite, four new tellurium minerals from Tombstone, AZ. Mineralogical Magazine: 43: 453-457.
Fleischer, M., Cabri, L.J., Chao, G.Y., Pabst, A. (1980) New mineral names. American Mineralogist: 65: 808-814.
Roberts, A.C. (1980) A triclinic unit cell for oboyerite. Geological Survey of Canada Paper 80-1B: 295-295.
Fleischer, M., Chao, G.Y., Francis, C.A., Pabst, A. (1981) New mineral names. American Mineralogist: 66: 217-220.
CNMNC Newsletter No. 51; European Journal of Mineralogy, 31, https://doi.org/10.1127/ejm/2019/0031-2894

Internet Links for OboyeriteHide

Localities for OboyeriteHide

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.
USA (FRL)
 
  • Arizona
    • Cochise County
      • Contention-Grand Central Mine group
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 218, 315; Williams, S.A. (1979), Girdite, oboyerite, fairbankite, and winstanleyite, four new tellurium minerals from Tombstone, AZ, Mineralogical Magazine: 43: 453-457. The discreditation of oboyerite and a note on the crystal structure of plumbotellurite Owen P. Missen1,2* , Michael S. Rumsey3, Anthony R. Kampf4, Stuart J. Mills1, Malcolm E. Back5 and John Spratt6
The discreditation of oboyerite and a note on the crystal structure of plumbotellurite Owen P. Missen1,2* , Michael S. Rumsey3, Anthony R. Kampf4, Stuart J. Mills1, Malcolm E. Back5 and John Spratt6
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 307. The discreditation of oboyerite and a note on the crystal structure of plumbotellurite Owen P. Missen1,2* , Michael S. Rumsey3, Anthony R. Kampf4, Stuart J. Mills1, Malcolm E. Back5 and John Spratt6
      • Tombstone Mining District
        • Tombstone
Rolf Luetcke The discreditation of oboyerite and a note on the crystal structure of plumbotellurite Owen P. Missen1,2* , Michael S. Rumsey3, Anthony R. Kampf4, Stuart J. Mills1, Malcolm E. Back5 and John Spratt6
 
Mineral and/or Locality  
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