Mcalpineite, Cu3TeO6·H2O, a new mineral from the McAlpine mine, Tuolumne County, California, and from the Centennial Eureka mine, Juab County, Utah

Roberts, Andrew C.; Ercit, T. Scott; Criddle, Alan J.; Jones, G. C.; Williams, R. Scott; Cureton, Forrest F.; Jensen, Martin C.

doi:10.1180/minmag.1994.058.392.07

Cited by 36 publications

(8 citation statements)

References 7 publications

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“…Their analogues in the mineral world are the Dagenaisite Zn 3 TeO 6 and Mcalpineite Cu 3 TeO 6 phases that adopt honeycomb-layered frameworks 47,48 . Taking advantage of the tellurate moiety, new designs of high-voltage cathode materials can be anticipated.…”

Section: Introductionmentioning

confidence: 99%

Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors

Masese¹,

Yoshii²,

Yamaguchi³

et al. 2018

Nat Commun

233

255

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Rechargeable potassium-ion batteries have been gaining traction as not only promising low-cost alternatives to lithium-ion technology, but also as high-voltage energy storage systems. However, their development and sustainability are plagued by the lack of suitable electrode materials capable of allowing the reversible insertion of the large potassium ions. Here, exploration of the database for potassium-based materials has led us to discover potassium ion conducting layered honeycomb frameworks. They show the capability of reversible insertion of potassium ions at high voltages (~4 V for K2Ni2TeO6) in stable ionic liquids based on potassium bis(trifluorosulfonyl) imide, and exhibit remarkable ionic conductivities e.g. ~0.01 mS cm−1 at 298 K and ~40 mS cm–1 at 573 K for K2Mg2TeO6. In addition to enlisting fast potassium ion conductors that can be utilised as solid electrolytes, these layered honeycomb frameworks deliver the highest voltages amongst layered cathodes, becoming prime candidates for the advancement of high-energy density potassium-ion batteries.

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Section: Introductionmentioning

confidence: 99%

Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors

Masese¹,

Yoshii²,

Yamaguchi³

et al. 2018

Nat Commun

233

255

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“…In the absence of a crystal-structure determination, the mineral can be classified (Strunz and Nickel, 2001) as either a hydroxide (4.FM) or as a tellurate (7.DE). Xocomecatlite (Williams, 1975), mcalpineite (Roberts et al, 1994) and jensenite are the other copper tellurates having the same Cu:Te ratio. Crystal structure data are available only for jensenite .…”

Section: Crystallographymentioning

confidence: 99%

Brumadoite, a new copper tellurate hydrate, from Brumado, Bahia, Brazil

et al. 2008

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ABSTR ACTBrumadoite, ideally Cu 3 Te 6+ O 4 (OH) 4 ·5H 2 O, is a new mineral from Pedra Preta mine, Serra das É guas, Brumado, Bahia, Brazil. It occurs as microcrystalline aggregates both on and, rarely, pseudomorphous after coarse-grained magnesite, associated with mottramite and quartz. Crystals are platy, subhedral, 1À2 mm in size. Brumadoite is blue (near RHS 114B), has a pale blue streak and a vitreous lustre. It is transparent to translucent and does not fluoresce. The empirical formula is (Cu 2.90 Pb 0.04 Ca 0.01 ) S2.95 (Te 6+ 0.93 Si 0.05 ) S0.98 O 3.92 (OH) 3.84 ·5.24H 2 O. Infrared spectra clearly show both (OH) and H 2 O. Microchemical spot tests using a KI solution show that brumadoite has tellurium in the 6 + state.The mineral is monoclinic, P2 1 /m or P2 1 . Unit-cell parameters refined from X-ray powder data are a 8.629(2) Å , b 5.805(2) Å , c 7.654(2) Å , b 103.17(2)º, V 373.3(2) Å 3 , Z = 2. The eight strongest X-ray powder-diffraction lines [d in Å ,(I),(hkl)] are: 8403). The name is for the type locality, Brumado, Bahia, Brazil. The new mineral species has been approved by the CNMNC (IMA 2008-028).

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“…The procedures for acquiring the infrared-absorption spectrum of artsmithite are identical to those reported by Roberts et al (1994). The sample was analyzed using a Bomem Michelson MB-100 FTIR spectrometer equipped with a wide-band mercury-cadmium telluride detector.…”

Section: Infrared Spectroscopymentioning

confidence: 99%

ARTSMITHITE, A NEW Hg1+-Al PHOSPHATE-HYDROXIDE FROM THE FUNDERBURK PROSPECT, PIKE COUNTY, ARKANSAS, U.S.A.

Roberts

Cooper

Hawthorne

et al. 2003

The Canadian Mineralogist

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(732,640,204). The mineral occurs as a colorless-to-white matted nest, approximately 3 ϫ 1 mm in size, of randomly scattered fibrous to acicular crystals at the Funderburk prospect, Pike County, Arkansas, U.S.A. Associated minerals on the holotype specimen are quartz, goethite, dickite and cinnabar; other minerals reported from the locality include barite, calcite, calomel, eglestonite, fluorapatite, galena, livingstonite, native mercury, metacinnabar, montroydite, perhamite, pyrite, siderite, stibiconite, stibnite and terlinguaite. Artsmithite is a secondary phase most probably formed from the breakdown of primary cinnabar and apatite. Individual needles are elongate [001], colorless, transparent, with a length-to-width ratio in excess of 100:1, and they average about 0.5 mm in length. Artsmithite is vitreous, with an off-white to cream streak, no obvious cleavage, irregular fracture; it is nonfluorescent, and the needles are flexible. D(calc.) is 6.40 g/cm 3 for the formula inferred from the crystal-structure analysis. It is biaxial positive, and all indices of refraction exceed 1.80; 2V (meas.) 60°; r < v, distinct; length slow with Z ≈ c. (732,640,204). Le minéral se présente en amas de cristaux aciculaires incolores ou blancs non orientés, mesurant environ 3 ϫ 1 mm, à l'indice Funderburk, comté de Pike, en Arkansas, aux Etats-Unis. Lui sont associés sur l'échantillon holotype: quartz, goethite, dickite et cinnabre; on a aussi trouvé barite, calcite, calomel, eglestonite, fluorapatite, galène, livingstonite, mercure natif, métacinnabre, montroydite, perhamite, pyrite, sidérite, stibiconite, stibnite et terlinguaïte à cet endroit. La artsmithite est une phase secondaire, tout probablement le résultat d'une déstabilisation du cinnabre et de la fluorapatite.

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Mcalpineite, Cu₃TeO₆·H₂O, a new mineral from the McAlpine mine, Tuolumne County, California, and from the Centennial Eureka mine, Juab County, Utah

Cited by 36 publications

References 7 publications

Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors

Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors

Brumadoite, a new copper tellurate hydrate, from Brumado, Bahia, Brazil

ARTSMITHITE, A NEW Hg1+-Al PHOSPHATE-HYDROXIDE FROM THE FUNDERBURK PROSPECT, PIKE COUNTY, ARKANSAS, U.S.A.

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