Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Richterite from
Siilinjärvi Carbonatite Intrusion, Siilinjärvi, North Savo, Finland


Locality type:Intrusion
Classification
Species:Richterite
Formula:Na(CaNa)Mg5(Si8O22)(OH)2
Age information
Maximum recorded age:2530 ± 45 Ma
Minimum recorded age:2280 ± 40 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
12530 ± 45 MaNeoarchean - K-Ar
22280 ± 40 MaRhyacian -
Sample references:
1 -
Puustinen, K. (1972). Richterite and actinolite from the Siilinjarvi carbonatite complex, Finland. Bull Geol Soc Finland, 44, 83-86.
2 -
Kononova, V.A., Shanin, L.L., Arakelyants, M.M. (1974) Times of formation of alkaline massifs and carbonatites. International Geology Review, 16 (10) 1119-1130 doi:10.1080/00206817409471765
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Richterite data
Locality Data:Click here to view Siilinjärvi Carbonatite Intrusion, Siilinjärvi, North Savo, Finland
Data Identifiers
Mindat Occurrence Record ID:1374138
Long-form Identifier:1:3:1374138:3
GUID (UUID V4):0
Nearest other occurrences of Richterite
10.6km (6.6 miles) ⓘSiilinjärvi Mine, Siilinjärvi, North Savo, Finland
References
Puustinnen, K. & Kauppinen, H. 1989. The Siilinjarvi carbonatite complex, eastern Finland.
Puustinen, K. (1971) Geology of the Siilinjärvi carbonatite complex, eastern Finland. Bulletin de la Commission Géologique de Finlande Vol. 249. Geological Survey of Finland
Puustinen, K. (1972). Richterite and actinolite from the Siilinjarvi carbonatite complex, Finland. Bull Geol Soc Finland, 44, 83-86.
Puustinen, K. A. U. K. O. (1973). Tetraferriphlogopite from the Siilinjärvi carbonatite complex, Finland. Bulletin of the Geological Society of Finland, 45, 35-42.
Kononova, V.A., Shanin, L.L., Arakelyants, M.M. (1974) Times of formation of alkaline massifs and carbonatites. International Geology Review, 16 (10) 1119-1130 doi:10.1080/00206817409471765
Puustinen, K. (1974). DOLOMITE EXSOLUTION TEXTURES IN CALCITE FROM THE SIILINJAERVI CARBONATITE COMPLEX, FINLAND, 46, 151-159.
Kononova, V.A., Shanin, L.L., Arakelyants, M.M. (1974) Times of formation of alkaline massifs and carbonatites. International Geology Review, 16 (10) 1119-1130 doi:10.1080/00206817409471765
Puustinen, K. (1974). DOLOMITE EXSOLUTION TEXTURES IN CALCITE FROM THE SIILINJAERVI CARBONATITE COMPLEX, FINLAND, 46, 151-159.
Jonathan Patchett, P., Kouvo, Olavi, Hedge, Carl E., Tatsumoto, Mitsunobu (1982) Evolution of continental crust and mantle heterogeneity: Evidence from Hf isotopes. Contributions to Mineralogy and Petrology, 78 (3) 279-297 doi:10.1007/bf00398923
Tilton, George R. (1983) Evolution of depleted mantle: The lead perspective. Geochimica et Cosmochimica Acta, 47 (7) 1191-1197 doi:10.1016/0016-7037(83)90061-3
Basu, A. R., Goodwin, A. M., & Tatsumoto, M. (1984). SmNd study of Archean alkalic rocks from the Superior Province of the Canadian Shield. Earth and planetary science letters, 70(1), 40-46.
Ingrid, H.-K. (1998) Rare earth elements in sövitic carbonatites and their mineral phases. Journal of Petrology, 39 (11). 2105-2121 doi:10.1093/petroj/39.11-12.2105
O'Brien, H. E., Peltonen, P., & Vartiainen, H. (2005). Kimberlites, carbonatites, and alkaline rocks. In Developments in Precambrian Geology (Vol. 14, pp. 605-644). Elsevier.
Davidson, A. J. G, Notholt, R. P. , Sheldon D. F. (2005) Phosphate Deposits of the World - Volume 2. Phosphate Rock Resources Vol. 2. Cambridge University Press.
O'Brien, H. E., Peltonen, P., & Vartiainen, H. (2005). Kimberlites, carbonatites, and alkaline rocks. In Developments in Precambrian Geology (Vol. 14, pp. 605-644). Elsevier.
Davidson, A. J. G, Notholt, R. P. , Sheldon D. F. (2005) Phosphate Deposits of the World - Volume 2. Phosphate Rock Resources Vol. 2. Cambridge University Press.
Rukhlov, A. S., Bell, K. (2010) Geochronology of carbonatites from the Canadian and Baltic Shields, and the Canadian Cordillera: clues to mantle evolution. Mineralogy and Petrology, 98 (1) 11-54 doi:10.1007/s00710-009-0054-5
Tichomirowa, M., Whitehouse, M.J., Gerdes, A., Götze, J., Schulz, B., Belyatsky, B.V. (2013) Different zircon recrystallization types in carbonatites caused by magma mixing: Evidence from U–Pb dating, trace element and isotope composition (Hf and O) of zircons from two Precambrian carbonatites from Fennoscandia. Chemical Geology, 353. 173-198 doi:10.1016/j.chemgeo.2012.11.004
O’Brien, H.; Heilimo, E.; Heino, P. (2015) The Archean Siilinjärvi Carbonatite Complex. In Mineral Deposits of Finland. Elsevier. p.327-343. doi:10.1016/b978-0-12-410438-9.00013-3
 
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