Oboyerite
A mixture of two or more distinct mineral species
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About Oboyerite
Colour:
Milk white
Hardness:
1½
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.
First Recorded Locality:
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.
Typematerial consist of at least two distinct phases, ottoite and plumbotellurite.
Unique Identifiers
Mindat ID:
3055
Long-form identifier:
mindat:1:1:3055:3
GUID
(UUID V4):
(UUID V4):
0fc87ad2-3b59-49d6-a5d8-9940f8a96213
Approval year:
1979
First published:
1979
Approval history:
1979: Approved as IMA 1979-009
2019: Discredited by CNMNC-IMA (proposal 19-D).
2019: Discredited by CNMNC-IMA (proposal 19-D).
Classification of Oboyerite
4..
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
:
:
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
34 : SELENITES, TELLURITES AND SULFITES
8 : Compound Selenites, Tellurites and Sulfites
28.4.5
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
Physical Properties of Oboyerite
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 Oboyerite
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Optical Extinction:
Maximum at 37 degrees to elongation.
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)°
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 Oboyerite
Place of Conservation of First Recorded Material:
Smithsonian Museum, Washington DC 162210
Geological Setting of First Recorded Material:
Mine dump.
Synonyms of Oboyerite
Other Language Names for Oboyerite
Common Associates
Associated Minerals Based on Photo Data:
1 photo of Oboyerite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
1 photo of Oboyerite associated with Chlorargyrite | AgCl |
Related Minerals - Strunz-mindat Grouping
4.. | Ixiolite-(Mn2+)-Ixiolite-(Fe2+) Series | (Ta,Nb,Sn,Fe,Mn)4O8 |
4.. | Polycrase-(Y) | Y(Ti,Nb)2(O,OH)6 |
4.. | Yttrobetafite (of Hogarth 1977) | A2-mD2X6-wZ1-n |
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.
Internet Links for Oboyerite
mindat.org URL:
https://www.mindat.org/min-3055.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Oboyerite
Reference List:
Localities for Oboyerite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
USA (FRL) | |
| |
|
Grand Central Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA