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Mineralpedia Details for Cordylite-(Ce)

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Cordylite-(Ce)

Cordylite-(Ce)

Named for a Greek translation of the word “club,” in reference to the club-like crystal habit the mineral displays. Cordylite is a rare mineral that occurs in alkali pegmatites, crystal lines vugs and fractures, and in dikes associated with gabbro-syenite. Localities from Cordylite include in Greencland, Canada, Russia, and China among only a couple others.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/cordylitece.pdf

Formula
NaBaCe2(CO3)4
Crystal System
Hexagonal 
Cleavage
Distinct, None, None 
Luster
Adamantine - Greasy 
Color
colorless, gray brown, yellow 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
4.5 
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Cordylite-(Ce) from Mont Saint-Hilaire, Rouville Co., Quebec, Canada

Cordylite-(Ce)
            from Mont Saint-Hilaire, Rouville Co., Quebec, Canada

Superb, well-formed, hexagonal crystals composed of stacked plates tapering to an end - 2mm.

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