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High hafnium members of the zircon-hafnon series from the granite pegmatites of Zambézia, Mozambique (1974)

Neves, J. M. Correia ; Nunes, J. E. Lopes ; Sahama, Th. G.

Springer

Contributions to mineralogy and petrology 48 (1974), S. 73-80

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ISSN: 1432-0967

Source: Springer Online Journal Archives 1860-2000

Topics: Geosciences

Notes: Abstract A mineralogical nomenclature applicable to the natural binary isomorphous series ZrSiO4-HfSiO4 is proposed. It is suggested that (Hf, Zr)SiO4 with more than 90 mol.-% hafnium component be called hafnon. Zoned crystals ranging in composition from hafnian zircon to hafnon were found in the heavy mineral concentrates from the tantalum pegmatites of the Morrua area, Conco, Moneia and Muiane mines in the district of Zambézia, Mozambique. The density (Berman balance), Hf/Zr ratio (XRF analysis) and unit-cell parameters (X-ray powder pattern) of the samples are determined and discussed. Two microprobe analyses of hafnon from Muiane are presented.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00399111

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