Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Oboyerite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
© Bruce Murphy 2007

Show Oboyerite Photos (2)



Formula:
H
 
6
(Pb,Ca)
 
6
(Te
4+
 
O
 
3
)
 
3
(Te
6+
 
O
 
6
)
 
2
 · 2H
 
2
O
System:TriclinicColour:Milk white
Hardness:1½
Name:For prospector Oliver Boyer.
This page provides mineralogical data about Oboyerite.

Classification of Oboyerite

IMA status:Approved 1979
Strunz 8th edition ID:4/K.19-20
Nickel-Strunz 10th (pending) edition ID:4.JN.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
N : Tellurites with additional anions, with H2O
Dana 8th edition ID:34.8.3.1

34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites
Hey's CIM Ref.:28.4.5

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
mindat.org URL:http://www.mindat.org/min-3055.html
Please feel free to link to this page.

Type Occurrence of Oboyerite

Type Locality:Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Place of Conservation of Type Material:Smithsonian Museum, Washington DC 162210
Year of Discovery:1979
Geological Setting of type material:Mine dump.

Physical Properties of Oboyerite

Diaphaneity (Transparency):Translucent
Colour:Milk white
Hardness (Mohs):1½
Density (measured):6.4(6) g/cm3
Density (calculated):6.66 g/cm3

Crystallography of Oboyerite

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 Volume:V 1,125.54 ų (Calculated from Unit Cell)
Z:2
Morphology:Tiny spherules

Optical Data of Oboyerite

Type:Biaxial
RI values: nα = 2.240 nγ = 2.260
Maximum Birefringence:δ = 0.020

Chart 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.

Chemical Properties of Oboyerite

Formula:
H
 
6
(Pb,Ca)
 
6
(Te
4+
 
O
 
3
)
 
3
(Te
6+
 
O
 
6
)
 
2
 · 2H
 
2
O
Essential elements:H, O, Pb, Te
All elements listed in formula:Ca, H, O, Pb, Te

Relationship of Oboyerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JN.05Sonoraite
Fe
3+
 
(TeO
 
3
)(OH) · H
 
2
O
4.JN.10Poughite
Fe
3+
2
(TeO
 
3
)
 
2
(SO
 
4
)(H
 
2
O)
 
2
 · H
 
2
O
4.JN.15Cesbronite
Cu
 
5
(TeO
 
3
)
 
2
(OH)
 
6
 · 2H
 
2
O
4.JN.20Eztlite
Pb
 
2
Fe
3+
6
(Te
4+
 
O
 
3
)
 
3
(Te
6+
 
O
 
6
)(OH)
 
10
 · 8H
 
2
O
4.JN.30Juabite
CaCu
 
10
(TeO
 
3
)
 
4
(AsO
 
4
)
 
4
(OH)
 
2
 · 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
28.4.1Xocomecatlite
Cu
 
3
(TeO
 
4
)(OH)
 
4
28.4.2Carlfriesite
CaTe
4+
2
Te
6+
 
O
 
8
28.4.3Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
28.4.4Tlalocite
Cu
 
10
Zn
 
6
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)(OH)
 
25
Cl · 27H
 
2
O
28.4.6Schieffelinite
Pb
 
8
(TeO
 
4
)
 
5
(SO
 
4
)
 
3
 · 8H
 
2
O
28.4.7Girdite
H
 
2
Pb
 
3
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
28.4.8Khinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.9Parakhinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.10Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
28.4.11Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
28.4.12Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
28.4.13Tlapallite
H
 
6
(Ca,Pb)
 
2
(Cu,Zn)
 
3
(TeO
 
3
)
 
4
(TeO
 
6
)(SO
 
4
)
28.4.14Montanite
Bi
 
2
(TeO
 
6
) · 2H
 
2
O
28.4.15Kuranakhite
PbMn
4+
 
Te
6+
 
O
 
6
28.4.16Cuzticite
Fe
3+
2
(TeO
 
6
) · 3H
 
2
O
28.4.17Yecoraite
Fe
3+
3
Bi
 
5
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)O
 
9
 · 9H
 
2
O

Other Names for Oboyerite

Synonyms:
IMA1979-009
Other Languages:
German:Oboyerit
Spanish:Oboyerita

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 Oboyerite

Reference List:

- +
Williams, S.A. (1979): Girdite, oboyerite, fairbankite, and winstanleyite, four new tellurium minerals from Tombstone, AZ. Mineralogical Magazine, 43, 453-457.

American Mineralogist (1980): 65: 809.

American Mineralogist (1981): 66: 220.

Geological Survey of Canada Paper 80-113: 295.

Internet Links for Oboyerite

Search Engines:
  • Look for Oboyerite on Google
  • Look for Oboyerite images on Google
    • External Links:
  • Look for Oboyerite on Webmineral
  • Look for Oboyerite on Athena Mineralogy
  • Look for Oboyerite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Oboyerite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Find Oboyerite on www.crystalclassics.co.uk
  • Buy fine minerals and gemstones from Pala International
  • webminerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for - Oboyerite - on e-Rocks Mineral Sales & Auctions
  • rare and unusual minerals mainly crystallized
  • Search for Oboyerite on Well-Arranged Molecules
  • Search for minerals at Heliodor
  • SpiriferMinerals.com - high quality low prices
  • Fine Minerals from Weinrich Minerals, Inc.
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Top quality minerals from Kristalle of California
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Oboyerite

    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.
    USA
     
    • Arizona
      • Cochise Co.
        • Tombstone Hills
          • Tombstone District
            • 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, Min.Mag.: 43: 453-457.
    In the collection of Brent Thorne
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 307.
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 8th Apr 2013 23:36:43
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds