Protodolomite
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About Protodolomite
Formula:
(Ca,Mg)CO3
Protodolomite is widely used in scientific literature and was defined in 1956 as a mineral like dolomite but varying widely in composition and degree of order (Graf and Goldsmith, 1956). Later workers redefined it as lacking the ordered XRD reflections of dolomite (Gaines, 1977; Reeder, 1983), so it could possibly be considered a distinct phase, but has not been submitted to the IMA. It may include some Gurhofian.
Unique Identifiers
Mindat ID:
26875
Long-form identifier:
mindat:1:1:26875:2
Chemistry of Protodolomite
Mindat Formula:
(Ca,Mg)CO3
Element Weights:
Elements listed:
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 Protodolomite
mindat.org URL:
https://www.mindat.org/min-26875.html
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References for Protodolomite
Reference List:
Graf, Donald L., Goldsmith, Julian R. (1956) Some Hydrothermal Syntheses of Dolomite and Protodolomite. The Journal of Geology, 64 (2) 173-186 doi:10.1086/626332
SCHROEDER, JOHANNES H., DWORNIK, EDWARD J., PAPIKE, J. J. (1969) Primary Protodolomite in Echinoid Skeletons. Geological Society of America Bulletin, 80 (8) 1613 doi:10.1130/0016-7606(1969)80[1613:ppies]2.0.co;2
MÜLLER, GERMAN (1970) High-magnesian Calcite and Protodolomite in Lake Balaton (Hungary) Sediments. Nature, 226 (5247). 749-750 doi:10.1038/226749a0
MÜLLER, G., FISCHBECK, R. (1973) Possible Natural Mechanism for Protodolomite Formation. Nature Physical Science, 242. 139-141 doi:10.1038/physci242139a0
Gaines, A. M. (1974) Protodolomite Synthesis at 100 C and Atmospheric Pressure. Science, 183 (4124). 518-520 doi:10.1126/science.183.4124.518
Alan M. Gaines (1977) Protodolomite Redefined. SEPM Journal of Sedimentary Research, Vol. 47. doi:10.1306/212f71d0-2b24-11d7-8648000102c1865d
Deelman, J. C., Gidman, J., Gaines, A. M. (1978) Protodolomite redefined; discussion and reply. Journal of Sedimentary Research, 48 (3) 1004-1011 doi:10.1306/212f75db-2b24-11d7-8648000102c1865d
Ohde, Shigeru, Kitano, Yasushi (1978) Synthesis of protodolomite from aqueous solution at normal temperature and pressure. GEOCHEMICAL JOURNAL, 12 (2) 115-119 doi:10.2343/geochemj.12.115
Ohde, Shigeru, Kitano, Yasushi (1981) Protodolomite in Daito-jima, Okinawa. GEOCHEMICAL JOURNAL, 15 (4) 199-207 doi:10.2343/geochemj.15.199
Reeder, R. J., Wenk, H.R. (1983) Structure refinements of some thermally disordered dolomites. American Mineralogist, 68 (7-8) 769-776
Oomori, Tamotsu, Kaneshima, Kiyoshi, Taira, Tatsuji, Kitano, Yasushi (1983) Synthetic studies of protodolomite from brine waters. GEOCHEMICAL JOURNAL, 17 (3) 147-152 doi:10.2343/geochemj.17.147
Gregg, Jay M., Bish, David L., Kaczmarek, Stephen E., Machel, Hans G. (2015) Mineralogy, nucleation and growth of dolomite in the laboratory and sedimentary environment: A review. Sedimentology, 62 (6). 1749-1769 doi:10.1111/sed.12202
Fang, Yihang, Xu, Huifang (2019) A New Approach To Quantify the Ordering State of Protodolomite Using XRD, TEM, and Z-Contrast Imaging. Journal of Sedimentary Research, 89 (6) 537-551 doi:10.2110/jsr.2019.29
Liu, Deng, Yu, Na, Papineau, Dominic, Fan, Qigao, Wang, Hongmei, Qiu, Xuan, She, Zhenbing, Luo, Genming (2019) The catalytic role of planktonic aerobic heterotrophic bacteria in protodolomite formation: Results from Lake Jibuhulangtu Nuur, Inner Mongolia, China. Geochimica et Cosmochimica Acta, 263. 31-49 doi:10.1016/j.gca.2019.07.056
Fang, Yihang, Xu, Huifang (2020) Quantification of Protodolomite Using a Combination of XRD, EDS, Z-contrast Imaging and Simulation. Microscopy and Microanalysis, 26. 254-256 doi:10.1017/s1431927620013975
Liu, Deng, Fan, Qigao, Papineau, Dominic, Yu, Na, Chu, Yueying, Wang, Hongmei, Qiu, Xuan, Wang, Xingjie (2020) Precipitation of protodolomite facilitated by sulfate-reducing bacteria: The role of capsule extracellular polymeric substances. Chemical Geology, 533. 119415 doi:10.1016/j.chemgeo.2019.119415
Zheng, Weili, Liu, Deng, Yang, Shanshan, Fan, Qigao, Papineau, Dominic, Wang, Hongmei, Qiu, Xuan, Chang, Biao, She, Zhenbing (2021) Transformation of protodolomite to dolomite proceeds under dry-heating conditions. Earth and Planetary Science Letters, 576. 117249pp. doi:10.1016/j.epsl.2021.117249
Raudsepp, Maija J., Wilson, Siobhan A., Morgan, Bree, Patel, Avni, Johnston, Scott G., Gagen, Emma J., Fallon, Stewart J. (2022) Non‐classical crystallization of very high magnesium calcite and magnesite in the Coorong Lakes, Australia. Sedimentology, 69 (5) 2246-2266 doi:10.1111/sed.12991
Han, Zuozhen, Qi, Peilin, Zhao, Yanyang, Guo, Na, Yan, Huaxiao, Tucker, Maurice E., Li, Dan, Wang, Jiajia, Zhao, Hui (2022) High Mg/Ca Molar Ratios Promote Protodolomite Precipitation Induced by the Extreme Halophilic Bacterium Vibrio harveyi QPL2. Frontiers in Microbiology, 13. doi:10.3389/fmicb.2022.821968
Fan, Qigao, Liu, Deng, Papineau, Dominic, Qiu, Xuan, Wang, Hongmei, She, Zhenbing, Zhao, Linduo (2023) Precipitation of High Mg-Calcite and Protodolomite Using Dead Biomass of Aerobic Halophilic Bacteria. Journal of Earth Science, 34 (2) 456-466 doi:10.1007/s12583-020-1108-1
Han, Zuozhen, Li, Jie, Zhao, Yanyang, Chen, Qingyuan, Gao, Xiao, Hu, Kaiming, Guo, Na, Wei, Xiangyu, Meng, Ruirui, Zhu, Chenlin, Tucker, Maurice E., Han, Chao (2024) Dissolved Mn2+ promotes microbially-catalyzed protodolomite precipitation in brackish oxidized water. Chemical Geology, 650. 121986 doi:10.1016/j.chemgeo.2024.121986
Neuhuber, Stephanie, Gier, Susanne, Draganits, Erich, Steier, Peter, Bolka, Monika, Ottner, Franz, Spötl, Christoph, Hippler, Dorothee, Meister, Patrick (2024) Radiocarbon ages of microcrystalline authigenic carbonate in Lake Neusiedl (Austria) suggest millennial‐scale growth of Mg‐calcite and protodolomite. Sedimentology, 71 (3) 912-940 doi:10.1111/sed.13161
Localities for Protodolomite
Showing 11 localities.
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.
Australia | |
| Raudsepp et al. (2022) |
| Raudsepp et al. (2022) | |
Austria | |
| Exel (1993) |
| Exel (1993) |
| Exel (1993) |
| Exel (1993) |
| Exel (1993) |
| Exel (1993) |
Canada | |
| Last (1990) |
| Shang (2000) | |
| Greengrass et al. (1999) |
Wannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany