Wortupaite (IMA2022–107) is a new hydrated magnesium nickel tellurite mineral with a zemannite-like structure, described from the Wortupa gold mine, South Australia, Australia. Wortupaite forms needles up to 25 μm in length, generally clustered and sometimes in blocky masses of shorter (10‒15 μm) crystals. Wortupaite is found growing on melonite, from which the component nickel and tellurium are derived, and is associated with calcite. The strongest powder diffraction lines are [dobsÅ(Iobs)(hkl)]: 8.059 (93) (100), 4.034 (92) (200), 2.832 (43) (211 and 121), 2.769 (100) (202) and 1.920 (45) (213 and 123). The empirical formula of wortupaite as determined by electron probe microanalysis is (Mg0.57Ni0.39Mn0.04)Σ1(Ni2+1.87Fe3+0.13)Σ2(Te4+O3)3⋅3H2O, simplified to the ideal formula of MgNi2+2(Te4+O3)3⋅3H2O with H2O content calculated from the crystal structure. The average crystal structure of wortupaite was determined by single-crystal X-ray diffraction with synchrotron radiation (R1 = 0.0558 for 100 independent reflections). Wortupaite is hexagonal, crystallising in the space group P63/m, with a = 9.2215(13) Å, c = 7.5150(15) Å, V = 553.43(19) Å3 and Z = 2. Wortupaite has a microporous structure, with the negatively charged zemannite-like framework formed by Te4+O3 trigonal pyramids and Ni2+O6 octahedra. For charge balance, Mg2+ and Ni2+ dominant sites are assumed to be located on central sites in the channels, coordinated by 6 H2O groups. An OW site was refined around the Mg2+ dominant site, but OW position(s) were not locatable around the Ni2+ dominant site. A discussion of the different models for crystallographic arrangement of channel species is provided, taking into account possible Fourier truncation effects. Unlike the other four minerals with zemannite-like structures which have a near 50% split of divalent and trivalent framework cations, wortupaite is the first natural phase to have only divalent cations in the framework sites.

Wortupaite (IMA2022–107) 是一种新型水合镁镍亚碲石矿物，具有类似钾锰矿的结构，产自澳大利亚南澳大利亚的 Wortupa 金矿。Wortupaite 形成长度达 25 μm 的针状体，通常呈簇状，有时呈较短（10-15 μm）晶体的块状块状。沃图派石被发现生长在菱沸石上，镍和碲成分就是从菱沸石中衍生出来的，并且与方解石有关。最强的粉末衍射线为 [ d obs Å( I obs )( hkl )]：8.059 (93) (100)、4.034 (92) (200)、2.832 (43) (211 和 121)、2.769 (100) ( 202）和 1.920（45）（213 和 123）。电子探针微量分析测定的沃图派特经验公式为(Mg 0.57 Ni 0.39 Mn 0.04 ) Σ1 (Ni 2+ 1.87 Fe 3+ 0.13 ) Σ2 (Te 4+ O 3 ) 3 ⋅3H 2 O，简化为理想公式MgNi 2+ 2 (Te 4+ O 3 ) 3 ⋅3H 2 O 的H 2 O含量由晶体结构计算。沃图派特的平均晶体结构通过同步辐射的单晶 X 射线衍射测定（100 次独立反射，R 1 = 0.0558）。Wortupaite 呈六方晶系，结晶空间群为P 6 3 / m ，a = 9.2215(13) Å，c = 7.5150(15) Å，V = 553.43(19) Å 3，Z = 2。Wortupaite 具有微孔结构，具有由Te 4+ O 3三棱锥和Ni 2+ O 6八面体形成的带负电的类锰沸石骨架。为了电荷平衡，假设Mg 2+和Ni 2+主导位点位于通道中的中心位点，由6个H 2 O基团协调。OW 位点在 Mg 2+主导位点周围进行了细化，但 OW 位置无法位于 Ni 2+周围占主导地位的网站。考虑到可能的傅立叶截断效应，讨论了通道物质晶体排列的不同模型。与其他四种具有类锰沸石结构的矿物（二价和三价骨架阳离子有近 50% 的分离）不同，沃图钙石是第一个在骨架位点仅具有二价阳离子的天然相。