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Mineville District, Essex Co., New York, USA

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 44° North , 73° West (est.)
Margin of Error:~6km
Köppen climate type:Dfb : Warm-summer humid continental climate


Thorium and rare earth elements (REE) reside within apatite in iron ores once mined in the Mineville, New York, area. The primary apatite-rich iron deposits are the Old Bed, Cheever, and Smith bodies; the Cheever and Smith orebodies have been mined out. The orebodies are magnetite deposits that are intricately folded and faulted within a complex suite of Precambrian metamorphic and igneous rocks. The host rocks have both mafic and felsic compositions that include augite syenites, granite, gabbro and diorite (Kemp, 1908; Staatz and others, 1980). The iron deposits are mainly magnetite, martite, and apatite, with gangue minerals of augite, hornblende, albite, quartz, pyrite, and tourmaline (McKeown and Klemic, 1956). The iron deposits in the Mineville–Port Henry area that are high in apatite are also enriched in phosphorous, thorium, and REE, because these elements are concentrated within the apatite grains. In addition, the ore mineral magnetite is intergrown with 1–3 m


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References

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