Markcooperite
A valid IMA mineral species
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About Markcooperite
Mark Cooper
Formula:
Pb2(UO2)(TeO6)
Colour:
Orange
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
8.496 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Mr. Mark Cooper, Canadian mineralogist, University of Manitoba.
The unique feature of the mineral, not observed in any other species, is U-Te diadochy substitution.
Unique Identifiers
Mindat ID:
39671
Long-form identifier:
mindat:1:1:39671:8
GUID
(UUID V4):
(UUID V4):
84043530-76e3-4c63-b19b-dbb35be6474a
IMA Classification of Markcooperite
Classification of Markcooperite
7.EB.25
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
B : With medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
B : With medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mcp | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Markcooperite
Adamantine
Transparency:
Transparent
Colour:
Orange
Streak:
Light orange
Hardness:
3 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Perfect
perfect on {100}
perfect on {100}
Fracture:
Irregular/Uneven
Density:
8.496 g/cm3 (Calculated)
Comment:
Calculation based on the empirical formula.
Optical Data of Markcooperite
Type:
Biaxial (+)
RI values:
nα = 2.110 nβ = 2.120 nγ = 2.290
2V:
Measured: 30° (5)
Max Birefringence:
δ = 0.180
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:
Very High
Dispersion:
None observed
Pleochroism:
Weak
Comments:
Shades of orange, absorption X>Y=Z
Comments:
Orientation: X = c, Y = b, Z = a
Chemistry of Markcooperite
Mindat Formula:
Pb2(UO2)(TeO6)
Elements listed:
Crystallography of Markcooperite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 5.7217(16) Å, b = 7.7476(2) Å, c = 7.889(2) Å
β = 90.833(5)°
β = 90.833(5)°
Ratio:
a:b:c = 0.739 : 1 : 1.018
Unit Cell V:
349.7 ų
Z:
2
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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CIF File Best | x | y | z | a | b | c
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Stop | Start
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0017720 | Markcooperite | Kampf A R, Mills S J, Housley R M, Marty J, Thorne B (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: IV. Markcooperite, Pb(UO2)Te6+O6, the first natural uranyl tellurate American Mineralogist 95 1554-1559 |  | 2010 | Otto Mountain, Baker, California | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.501 Å | (29) |
| 3.235 Å | (100) |
| 2.985 Å | (37) |
| 2.873 Å | (40) |
| 2.774 Å | (30) |
| 2.220 Å | (23) |
| 1.990 Å | (21) |
| 1.715 Å | (22) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47e : [Vanadates, chromates, manganates] | |
| 47f : [Uranyl (U⁶⁺) minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Markcooperite
General Appearance of Type Material:
Pseudotetragonal prisms to 0.2 mm with the forms {100} and {011}, and botryoidal intergrowths to 0.3 mm in diameter. No twinning was observed.
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, catalog numbers 62510, 62511, and 62512 (three co-type specimens).
Geological Setting of Type Material:
Fracture surfaces and small vugs in brecciated quartz veins.
Associated Minerals at Type Locality:
Synonyms of Markcooperite
Common Associates
Associated Minerals Based on Photo Data:
| 18 photos of Markcooperite associated with Housleyite | Pb6CuTe6+4O18(OH)2 |
| 10 photos of Markcooperite associated with Eckhardite | (Ca,Pb)Cu2+Te6+O5(H2O) |
| 10 photos of Markcooperite associated with Ottoite | Pb2TeO5 |
| 4 photos of Markcooperite associated with Chlorargyrite | AgCl |
| 2 photos of Markcooperite associated with Quartz | SiO2 |
| 2 photos of Markcooperite associated with Khinite | Pb2+Cu2+3[Te6+O6](OH)2 |
| 1 photo of Markcooperite associated with Timroseite | Pb2Cu5(TeO6)2(OH)2 |
| 1 photo of Markcooperite associated with Calcite | CaCO3 |
| 1 photo of Markcooperite associated with Gold | Au |
| 1 photo of Markcooperite associated with Pyrolusite | Mn4+O2 |
Related Minerals - Strunz-mindat Grouping
| 7.EB. | Bobcookite | NaAl(UO2)2(SO4)4 · 18H2O |
| 7.EB. | Alwilkinsite-(Y) | Y(UO2)3(SO4)2O(OH)3(H2O)7 · 7H2O |
| 7.EB. | Gurzhiite | Al(UO2)(SO4)2F · 10H2O |
| 7.EB.I | Shinarumpite | [Co(H2O)6][(UO2)(SO4)2(H2O)] · 4H2O |
| 7.EB. | Zincorietveldite | Zn(UO2)(SO4)2(H2O)5 |
| 7.EB. | Chenowethite | Mg(H2O)6[(UO2)2(SO4)2(OH)2] · 5H2O |
| 7.EB.05 | Johannite | Cu(UO2)2(SO4)2(OH)2 · 8H2O |
| 7.EB.05 | Meitnerite | (NH4)(UO2)(SO4)(OH) · 2H2O |
| 7.EB.10 | Deliensite | Fe[(UO2)2(SO4)2(OH)2](H2O)7 |
| 7.EB.10 | Rietveldite | Fe(UO2)(SO4)2(H2O)5 |
| 7.EB.15 | Leydetite | Fe(UO2)(SO4)2 · 11H2O |
| 7.EB.15 | Magnesioleydetite | Mg(UO2)(SO4)2 · 11H2O |
| 7.EB.15 | Strassmannite | Al(UO2)(SO4)2F · 16H2O |
| 7.EB.20 | Greenlizardite | (NH4)Na(UO2)2(SO4)2(OH)2 · 4H2O |
Fluorescence of Markcooperite
Not fluorescent.
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 Markcooperite
mindat.org URL:
https://www.mindat.org/min-39671.html
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References for Markcooperite
Localities for Markcooperite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
DR Congo | |
| Analyzed by Joy Desor. |
USA | |
| Kampf et al. (2010) |
| Kampf et al. (2010) | |
| Kampf et al. (2010) |
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Kamoto East Open cut, Kamoto, Mutshatsha, Lualaba, DR Congo