Transparency:
Transparent
Colour:
Pale green-yellow
Streak:
White
Hardness:
2½ onMohs scale
Tenacity:
Very brittle
Cleavage:
Perfect
On {100}; also probable two good cleavages, on {010} and {001}.
On {100}; also probable two good cleavages, on {010} and {001}.
Fracture:
Irregular/Uneven
Density:
2.91(2) g/cm3 (Measured)
Optical Data of ParamarkeyiteSurface Relief:ModerateDispersion:strong, r > vOptical Extinction:Y = b.Pleochroism:Non-pleochroicChemistry of ParamarkeyiteCrystallography of ParamarkeyiteGeneral Appearance of Type Material:Striated tablets, up to 0.11 mm across.Place of Conservation of Type Material:Mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 67487 and 67488.Geological Setting of Type Material:Secondary, on gypsum-coated asphaltum.Associated Minerals at Type Locality:Other Language Names for ParamarkeyiteRelationship of Paramarkeyite to other SpeciesOther Members of Markeyite Group:Markeyite Ca9(UO2)4(CO3)13 · 28H2O Orth.mmm(2/m2/m2/m) :Pmmn Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O Orth.mmm(2/m2/m2/m) :Pmmn Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O Mon. 2/m :P21/m
Related Minerals -Strunz-mindat GroupingTric.1 :P15.ED.05 Bayleyite Mg2(UO2)(CO3)3 · 18H2O 5.ED.10 Swartzite MgCa(UO2)(CO3)3 · 12H2O 5.ED.15 Albrechtschraufite Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O 5.ED.20 Liebigite Ca2(UO2)(CO3)3 · 11H2O 5.ED.25 Rabbittite Ca3Mg3(UO2)2(CO3)6(OH)4 · 18H2O 5.ED.30 Andersonite Na2Ca(UO2)(CO3)3 · 6H2O 5.ED.35 Grimselite K3Na(UO2)(CO3)3 · H2O 5.ED.40 Widenmannite Pb2(OH)2[(UO2)(CO3)2] 5.ED.45 Znucalite Zn10Ca0.83(UO2)0.83(CO3)4(OH)15.31(H2O)5.48 5.ED.50 Agricolaite K4(UO2)(CO3)3 5.ED.50 Čejkaite Na4(UO2)(CO3)3 5.ED.55 Línekite K2Ca3[(UO2)(CO3)3]2 · 8H2O 5.ED.55 Braunerite K2Ca(UO2)(CO3)3 · 6H2O 5.ED.60 Leószilárdite Na6Mg(UO2)2(CO3)6 · 6H2O 5.ED.65 Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O 5.ED.65 Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O 5.ED.65 Markeyite Ca9(UO2)4(CO3)13 · 28H2O 5.ED.70 Paddlewheelite MgCa5Cu2(UO2)4(CO3)12(H2O)33 Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h). D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Fluorescence of ParamarkeyiteOther InformationSearch Engines:Look for Paramarkeyite on Google Look for Paramarkeyite images on Google Look for Paramarkeyite on Bing Look for Paramarkeyite images on Bing Look for Paramarkeyite on DuckDuckGo Look for Paramarkeyite images on DuckDuckGo Look for Paramarkeyite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ParamarkeyiteⓘMarkey Mine (TL)Miyawaki et al. (2021)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
Dispersion:
strong, r > v
Optical Extinction:
Y = b.
Pleochroism:
Non-pleochroic
Crystallography of ParamarkeyiteGeneral Appearance of Type Material:Striated tablets, up to 0.11 mm across.Place of Conservation of Type Material:Mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 67487 and 67488.Geological Setting of Type Material:Secondary, on gypsum-coated asphaltum.Associated Minerals at Type Locality:Other Language Names for ParamarkeyiteRelationship of Paramarkeyite to other SpeciesOther Members of Markeyite Group:Markeyite Ca9(UO2)4(CO3)13 · 28H2O Orth.mmm(2/m2/m2/m) :Pmmn Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O Orth.mmm(2/m2/m2/m) :Pmmn Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O Mon. 2/m :P21/m
Related Minerals -Strunz-mindat GroupingTric.1 :P15.ED.05 Bayleyite Mg2(UO2)(CO3)3 · 18H2O 5.ED.10 Swartzite MgCa(UO2)(CO3)3 · 12H2O 5.ED.15 Albrechtschraufite Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O 5.ED.20 Liebigite Ca2(UO2)(CO3)3 · 11H2O 5.ED.25 Rabbittite Ca3Mg3(UO2)2(CO3)6(OH)4 · 18H2O 5.ED.30 Andersonite Na2Ca(UO2)(CO3)3 · 6H2O 5.ED.35 Grimselite K3Na(UO2)(CO3)3 · H2O 5.ED.40 Widenmannite Pb2(OH)2[(UO2)(CO3)2] 5.ED.45 Znucalite Zn10Ca0.83(UO2)0.83(CO3)4(OH)15.31(H2O)5.48 5.ED.50 Agricolaite K4(UO2)(CO3)3 5.ED.50 Čejkaite Na4(UO2)(CO3)3 5.ED.55 Línekite K2Ca3[(UO2)(CO3)3]2 · 8H2O 5.ED.55 Braunerite K2Ca(UO2)(CO3)3 · 6H2O 5.ED.60 Leószilárdite Na6Mg(UO2)2(CO3)6 · 6H2O 5.ED.65 Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O 5.ED.65 Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O 5.ED.65 Markeyite Ca9(UO2)4(CO3)13 · 28H2O 5.ED.70 Paddlewheelite MgCa5Cu2(UO2)4(CO3)12(H2O)33 Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h). D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Fluorescence of ParamarkeyiteOther InformationSearch Engines:Look for Paramarkeyite on Google Look for Paramarkeyite images on Google Look for Paramarkeyite on Bing Look for Paramarkeyite images on Bing Look for Paramarkeyite on DuckDuckGo Look for Paramarkeyite images on DuckDuckGo Look for Paramarkeyite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ParamarkeyiteⓘMarkey Mine (TL)Miyawaki et al. (2021)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
Striated tablets, up to 0.11 mm across.
Place of Conservation of Type Material:
Mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 67487 and 67488.
Geological Setting of Type Material:
Secondary, on gypsum-coated asphaltum.
Associated Minerals at Type Locality:
Relationship of Paramarkeyite to other SpeciesOther Members of Markeyite Group:Markeyite Ca9(UO2)4(CO3)13 · 28H2O Orth.mmm(2/m2/m2/m) :Pmmn Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O Orth.mmm(2/m2/m2/m) :Pmmn Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O Mon. 2/m :P21/m
Related Minerals -Strunz-mindat GroupingTric.1 :P15.ED.05 Bayleyite Mg2(UO2)(CO3)3 · 18H2O 5.ED.10 Swartzite MgCa(UO2)(CO3)3 · 12H2O 5.ED.15 Albrechtschraufite Ca4Mg(UO2)2(CO3)6F2 · 17-18H2O 5.ED.20 Liebigite Ca2(UO2)(CO3)3 · 11H2O 5.ED.25 Rabbittite Ca3Mg3(UO2)2(CO3)6(OH)4 · 18H2O 5.ED.30 Andersonite Na2Ca(UO2)(CO3)3 · 6H2O 5.ED.35 Grimselite K3Na(UO2)(CO3)3 · H2O 5.ED.40 Widenmannite Pb2(OH)2[(UO2)(CO3)2] 5.ED.45 Znucalite Zn10Ca0.83(UO2)0.83(CO3)4(OH)15.31(H2O)5.48 5.ED.50 Agricolaite K4(UO2)(CO3)3 5.ED.50 Čejkaite Na4(UO2)(CO3)3 5.ED.55 Línekite K2Ca3[(UO2)(CO3)3]2 · 8H2O 5.ED.55 Braunerite K2Ca(UO2)(CO3)3 · 6H2O 5.ED.60 Leószilárdite Na6Mg(UO2)2(CO3)6 · 6H2O 5.ED.65 Pseudomarkeyite Ca8(UO2)4(CO3)12 · 21H2O 5.ED.65 Natromarkeyite Na2Ca8(UO2)4(CO3)13 · 27H2O 5.ED.65 Markeyite Ca9(UO2)4(CO3)13 · 28H2O 5.ED.70 Paddlewheelite MgCa5Cu2(UO2)4(CO3)12(H2O)33 Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h). D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Fluorescence of ParamarkeyiteOther InformationSearch Engines:Look for Paramarkeyite on Google Look for Paramarkeyite images on Google Look for Paramarkeyite on Bing Look for Paramarkeyite images on Bing Look for Paramarkeyite on DuckDuckGo Look for Paramarkeyite images on DuckDuckGo Look for Paramarkeyite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ParamarkeyiteⓘMarkey Mine (TL)Miyawaki et al. (2021)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
| Markeyite | Ca9(UO2)4(CO3)13 · 28H2O | Orth.mmm(2/m2/m2/m) :Pmmn |
| Natromarkeyite | Na2Ca8(UO2)4(CO3)13 · 27H2O | Orth.mmm(2/m2/m2/m) :Pmmn |
| Pseudomarkeyite | Ca8(UO2)4(CO3)12 · 21H2O | Mon. 2/m :P21/m |
Radioactivityshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h). D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Fluorescence of ParamarkeyiteOther InformationSearch Engines:Look for Paramarkeyite on Google Look for Paramarkeyite images on Google Look for Paramarkeyite on Bing Look for Paramarkeyite images on Bing Look for Paramarkeyite on DuckDuckGo Look for Paramarkeyite images on DuckDuckGo Look for Paramarkeyite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ParamarkeyiteⓘMarkey Mine (TL)Miyawaki et al. (2021)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshieldOther InformationSearch Engines:Look for Paramarkeyite on Google Look for Paramarkeyite images on Google Look for Paramarkeyite on Bing Look for Paramarkeyite images on Bing Look for Paramarkeyite on DuckDuckGo Look for Paramarkeyite images on DuckDuckGo Look for Paramarkeyite in the Rock H. Currier Digital Library External Links:Mineral Dealers:References for ParamarkeyiteⓘMarkey Mine (TL)Miyawaki et al. (2021)+1 other reference Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List ![]()
![]()
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
External Links:
Mineral Dealers:
Quick NavTopUnique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionType OccurrenceOther LanguagesRelationshipsStrunz-MindatRadioactivityFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 22:56:11 Page updated: October 6, 2025 17:53:44