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The crystal structure of Ni-rich gordaite–thérèsemagnanite from Cap Garonne, France


Mills, SJ and Missen, OP and Favreau, G, The crystal structure of Ni-rich gordaite-theresemagnanite from Cap Garonne, France, Mineralogical Magazine, 83, (3) pp. 459 - 463. ISSN 1471-8022 (2019) [Refereed Article]

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PDF (Crystal structure of nickel-rich gordaite–thérèsemagnanite, a weathering zone sulfate-hydroxide mineral containing critical metals.)
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DOI: doi:10.1180/mgm.2019.65


The crystal structure of Ni-rich gordaite–thérèsemagnanite has been determined from a sample collected at pillar 80 in the North mine, Cap Garonne, Var, France. The structure was refined to R1 = 0.0693 for 935 reflections with I > 2σ(I). The mineral is isostructural with gordaite, forming a layered structure with an extensive hydrogen-bonding network. The possible polytypic relationship between gordaite, thérèsemagnanite and guarinoite is also discussed. The guarinoite formula (Zn,Co,Ni)6(SO4)(OH,Cl)10·5H2O is also likely to be incorrect and is more likely to be Na(Zn,Co)4(SO4)(OH)6Cl·5–6H2O, meaning that guarinoite is equivalent to Co-rich gordaite-2H and would not be a distinct mineral species.

Item Details

Item Type:Refereed Article
Keywords:thérèsemagnanite, gordaite, Cap Garonne, crystal structure, polytype, solid solution, guarinoite
Research Division:Earth Sciences
Research Group:Geology
Research Field:Mineralogy and crystallography
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Other mineral resources (excl. energy resources)
Objective Field:Other mineral resources (excl. energy resources) not elsewhere classified
UTAS Author:Missen, OP (Dr Owen Missen)
ID Code:154952
Year Published:2019
Web of Science® Times Cited:5
Deposited By:CODES ARC
Deposited On:2023-01-20
Last Modified:2023-01-21

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