Abstract
The titanium-rich nigerite found in Shizhuyuan, Hunan Province, is a rare Ti-Sn- and Al-bearing oxide mineral. It occurs in marble of the Late Devonian Shetienqiao Limestone Formation, along the exocontact with an Early Yenshanian biotite-granite stock.
The mineral is disseminated in veinlets composed of fluorite, tourmaline, mica, pyrrhotite and some other minerals, and associated with the nigerite are gahnite and cassiterite.
Chemically, in addition to tin and aluminium, it contains titanium as one of its main components (up to 7.45%), and its ratio of Ti atoms to those of Sn is close to 1:1. Accordingly, the titanium-rich nigerite is close to being the nigerite of the niger-ite-hoegbomite series.
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References
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© 1988 United Nations New York
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Yansong, T., Zhengyun, L., Qiuju, Z. (1988). Discovery and Study of Titanium-Rich Nigerite. In: Hutchison, C.S. (eds) Geology of Tin Deposits in Asia and the Pacific. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72765-8_23
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DOI: https://doi.org/10.1007/978-3-642-72765-8_23
Publisher Name: Springer, Berlin, Heidelberg
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