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Lyndochite

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Formula:
(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Crystal System:
Orthorhombic
Name:
Described as a new mineral by Ellsworth (1927). Named after the locality of Lyndoch Township, Ontario, Canada. The mineral was found at a pegmatite on Lot 23, Concession XV, Lyndoch Township. This locality is today most probably the one that is called the Beryl Pit (also named Quadeville Beryl Mine and McCoy Mine).
The mineral was first recognized by Miller (1898) as a columbite group mineral. Ercit (2002) reinvestigated the type material and found that it is euxenite-(Y).
Synonym:
A synonym of Euxenite-(Y)
This page provides mineralogical data about Lyndochite.


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References for LyndochiteHide

Reference List:
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Miller, W.G. (1898) Economic Geology of eastern Ontario, corundum and other minerals. Ontario Bureau of Mines. Annual Report. 7 (3): 254-237 [as a columbite mineral].
Ellsworth, H.V. (1927) Lyndochite - a New Mineral of the Euxenite-Polycrase Group from Lyndoch Township, Renfrew County, Ontario. American Mineralogist: 12: 212-218.
Palache, C., Berman, H., and Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 791.
Fleischer, M. (1966) Rare earths in the aeschynite-priorite series. The status of lyndochite. Mineralogical Magazine: 35: 801-809.
Anthony, J. W. et al. (1997) Handbook of Mineralogy, Vol. III, p. 3.
Ercit, T.S. (2002) "Lyndochite" revisited: A cautionary note on discreditations. Canadian Mineralogist: 4: 1211-1213.
Burke, E.A.J. (2006) A mass discreditation of GQN minerals. The Canadian Mineralogist: 44(6): 1557-1560.

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