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Journal Article

Camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite: six new hydrogen-arsenate minerals from the Torrecillas mine, Iquique Province, Chile Available to Purchase

Anthony R. Kampf, Barbara P. Nash, Aaron J. Celestian, Maurizio Dini, Arturo A. Molina Donoso
Published: 08 May 2019
Mineralogical Magazine (2019) 83 (5): 655–671.
DOI: https://doi.org/10.1180/mgm.2019.28
... 2 O) 6 ·H 2 O, magnesiofluckite, CaMg(AsO 3 OH) 2 (H 2 O) 2 , picaite, NaCa[AsO 3 OH][AsO 2 (OH) 2 ] and ríosecoite, Ca 2 Mg(AsO 3 OH) 3 (H 2 O) 2 , were discovered on two closely related specimens collected from the Torrecillas mine, Iquique Province, Chile. These minerals occur as secondary phases...
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View PDF for article title, Camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and <span class="search-highlight">ríosecoite</span>: six new hydrogen-arsenate minerals from the Torrecillas mine, Iquique Province, Chile
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Ríosecoite crystals with balls of camanchacaite. The field of view is 1 mm across, specimen #67257.

Ríosecoite crystals with balls of camanchacaite. The field of view is 1 mm ... Available to Purchase

Published: 08 May 2019
Fig. 10. Ríosecoite crystals with balls of camanchacaite. The field of view is 1 mm across, specimen #67257.
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The structure of ríosecoite viewed down [100], the direction of the chains. O–H bonds are shown as sticks and hydrogen bonds as thin lines. The unit-cell outline is shown with dashed lines.

The structure of ríosecoite viewed down [100], the direction of the chains.... Available to Purchase

Published: 08 May 2019
Fig. 23. The structure of ríosecoite viewed down [100], the direction of the chains. O–H bonds are shown as sticks and hydrogen bonds as thin lines. The unit-cell outline is shown with dashed lines.
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Raman spectra of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite.

Raman spectra of camanchacaite, chinchorroite, espadaite, magnesiofluckite,... Available to Purchase

Published: 08 May 2019
Fig. 11. Raman spectra of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite.
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The tetramer of edge-sharing Ca1O8 and Ca2O7 polyhedra in the structure of ríosecoite.

The tetramer of edge-sharing Ca1O 8 and Ca2O 7 polyhedra in the structure... Available to Purchase

Published: 08 May 2019
Fig. 21. The tetramer of edge-sharing Ca1O 8 and Ca2O 7 polyhedra in the structure of ríosecoite.
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Crystallographic properties of camanchacaite, chinchorroite, espadaite, mag... Available to Purchase

Published: 08 May 2019
Table 7. Crystallographic properties of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Space group C 2/ c P $\bar{1}$ Ccca P $\bar{1}$ P 2 1
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Crystallographic properties of camanchacaite, chinchorroite, espadaite, mag... Available to Purchase

Published: 08 May 2019
Table 7. Crystallographic properties of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Space group C 2/ c P $\bar{1}$ Ccca P $\bar{1}$ P 2 1
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Crystallographic properties of camanchacaite, chinchorroite, espadaite, mag... Available to Purchase

Published: 08 May 2019
Table 7. Crystallographic properties of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Space group C 2/ c P $\bar{1}$ Ccca P $\bar{1}$ P 2 1
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Crystallographic properties of camanchacaite, chinchorroite, espadaite, mag... Available to Purchase

Published: 08 May 2019
Table 7. Crystallographic properties of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Space group C 2/ c P $\bar{1}$ Ccca P $\bar{1}$ P 2 1
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The complex chain (along a) of edge-sharing CaO7 and CaO8 polyhedra and MgO6 octahedra with bridging AsO3(OH) tetrahedra in the structure of ríosecoite. O–H bonds are shown as sticks and hydrogen bonds as thin lines. The unit cell outline is shown with dashed lines.

The complex chain (along a ) of edge-sharing CaO 7 and CaO 8 polyhedra a... Available to Purchase

Published: 08 May 2019
Fig. 22. The complex chain (along a ) of edge-sharing CaO 7 and CaO 8 polyhedra and MgO 6 octahedra with bridging AsO 3 (OH) tetrahedra in the structure of ríosecoite. O–H bonds are shown as sticks and hydrogen bonds as thin lines. The unit cell outline is shown with dashed lines.
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Empirical formulas of camanchacaite, chinchorroite, espadaite, magnesiofluc... Available to Purchase

Published: 08 May 2019
Table 6. Empirical formulas of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Mineral Empirical formula Formula basis Camanchacaite (Na 0.99 Ca 0.84 Mg 2.11 Mn 0.02 ) Σ3.96 [AsO 4 ][AsO 2.95 (OH) 1.05 ] 2 3 As, charge balance and 12 O apfu
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Chemical analyses [mean (std. dev.) range in wt.%] for camanchacaite, chinc... Available to Purchase

Published: 08 May 2019
Table 5. Chemical analyses [mean (std. dev.) range in wt.%] for camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Espadaite (norm.)* Magnesiofluckite Picaite Ríosecoite 14 points on 5 crystals 7 points
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Details of structure refinements for chinchorroite, espadaite, magnesiofluc... Available to Purchase

Published: 08 May 2019
Table 8. Details of structure refinements for chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Absorption coefficient (mm –1 ) 7.449 8.361 8.519 9.522 9.744 F (000) 558 3988.5 368 656
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Physical and optical properties of camanchacaite, chinchorroite, espadaite,... Available to Purchase

Published: 08 May 2019
Table 3. Physical and optical properties of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Ríosecoite Colour colourless; pink–beige colourless colourless colourless
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Raman shifts (cm –1 ) for camanchacaite, chinchorroite, espadaite, magnesio... Available to Purchase

Published: 08 May 2019
Table 4. Raman shifts (cm –1 ) for camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite. Camanchacaite Chinchorroite Espadaite Magnesiofluckite Picaite Riosecoite Raman modes 1,2,3 109 107 Unspecified 4 lattice modes and M –O–As bending
Journal Article

New minerals and nomenclature modifications approved in 2018 Available to Purchase

U. Hålenius, F. Hatert, M. Pasero, S. J. Mills
Published: 07 August 2018
Mineralogical Magazine (2018) 82 (4): 1015–1021.
DOI: https://doi.org/10.1180/mgm.2018.148
..., Los Angeles, CA 90007, USA, catalogue number 67257 How to cite: Kampf, A.R., Nash, B., Dini, M. and Molina Donoso, A.A. (2018) Ríosecoite, IMA 2018-023. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine , 82 , 1015–1021. IMA No. 2018-024 Pandoraite-Ba BaV 4...
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IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 44 New minerals and nomenclature modifications approved in 2018 Open Access

Ulf Hålenius, Frédéric Hatert, Marco Pasero, Stuart J. Mills
Published: 01 July 2018
European Journal of Mineralogy (2018) 30 (4): 877–882.
DOI: https://doi.org/10.1127/ejm/2018/0030-2787
... , 877–882. IMA No. 2018-023 Ríosecoite Ca 2 Mg(AsO 3 OH) 3 (H 2 O) 2 Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile (20°58′13″S, 70°8′17″W) Anthony R. Kampf*, Barbara Nash, Maurizio Dini and Arturo A. Molina Donoso *E-mail: [email protected] New structure...
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Journal Article

Mauriziodiniite, NH 4 (As 2 O 3 ) 2 I, the ammonium and iodine analogue of lucabindiite from the Torrecillas mine, Iquique Province, Chile Available to Purchase

Anthony R. Kampf, Barbara P. Nash, Arturo A. Molina Donoso
Published: 26 November 2019
Mineralogical Magazine (2020) 84 (2): 267–273.
DOI: https://doi.org/10.1180/mgm.2019.75
...), picaite, ríosecoite, shilovite, tapiaite, tondiite and torrecillasite (See Pasero, 2020 and references therein). Maurizio Dini and one of the authors (AAMD) collected mauriziodiniite; Mr. Dini recognised it as a potentially new mineral and provided the holotype specimen. He has given permission...
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MGM volume 83 issue 5 Cover and Front matter Available to Purchase

Published: 01 October 2019
Mineralogical Magazine (2019) 83 (5): f1–f2.
DOI: https://doi.org/10.1180/mgm.2019.61
..., a new manganese phyllosilicate mineral from the N Chwaning III mine, Kalahari Manganese Fields, South Africa 645 ANTHONY R. KAMPF, BARBARA P. NASH, AARON J. CELESTIAN, MAURIZIO DINI and ARTURO A. MOLINA DONOSO : Camanchacaite, chinchorroite, espadaite, magnesiofl uckite, picaite and ríosecoite: six new...
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MGM volume 83 issue 5 Cover and Back matter Available to Purchase

Published: 01 October 2019
Mineralogical Magazine (2019) 83 (5): b1–b2.
DOI: https://doi.org/10.1180/mgm.2019.62
... phyllosilicate mineral from the N Chwaning III mine, Kalahari Manganese Fields, South Africa 645 ANTHONY R. KAMPF, BARBARA P. NASH, AARON J. CELESTIAN, MAURIZIO DINI and ARTURO A. MOLINA DONOSO : Camanchacaite, chinchorroite, espadaite, magnesiofl uckite, picaite and ríosecoite: six new hydrogen-arsenate...
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