synchysite-(Ce)
{{Short description|Carbonate mineral}}
{{Infobox mineral
| name = Synchysite-(Ce)
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| image = Synchysite-(Ce)-189497.jpg
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| caption = Synchysite-(Ce) from Poudrette quarry, Mont Saint-Hilaire
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| formula = {{chem2|Ca(Ce,La)(CO3)2F}}
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| strunz = 5.BD.20c
| dana = 16a.1.3.1
| system = Monoclinic
| class = Prismatic (2/m)
(same H-M symbol)
| symmetry = C2/c
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| tenacity = Brittle
| mohs = 4.5
| luster = Vitreous
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| diaphaneity = Translucent
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| pleochroism = Weak
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Synchysite-(Ce) is a carbonate mineral and an end member of the synchysite group. The general chemical formula is {{chem2|Ca(Ce,La)(CO3)2F}}.{{cite web|title=Synchysite-(Ce)|url=http://www.mindat.org/min-3853.html|accessdate=24 February 2013}}
Discovery and naming
Synchysite-(Ce) was discovered in 1900 by Gustaf Flink.{{cite journal|last=Flink |first=Gustaf |title=Ueber den Synchysit |journal=Bull. Geol. Inst. Univ. Upsala |year=1900 |page=81}} The name is derived from the Greek "σύγχΰσις", meaning "confounding", a reference to the possibility to confuse the mineral with Parisite-(Ce).
Occurrences
Synchysite-(Ce) is found in rare-earth element bearing pegmatites.{{cite web|title=Synchysite-(Ce) Mineral Data|url=http://webmineral.com/data/Synchysite-(Ce).shtml|accessdate=24 February 2013}} It can also occur as a hydrothermal mineral in granite, alkalic syenite and carbonatite.{{cite web|title=Synchysite-(Ce)|url=http://www.handbookofmineralogy.org/pdfs/synchysite-(Ce).pdf|work=handbookofmineralogy|accessdate=24 February 2013}}