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picaite

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Journal Article
Published: 08 May 2019
Mineralogical Magazine (2019) 83 (5): 655–671.
... 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...
FIGURES
First thumbnail for: Camanchacaite, chinchorroite, espadaite, magnesiof...
Second thumbnail for: Camanchacaite, chinchorroite, espadaite, magnesiof...
Third thumbnail for: Camanchacaite, chinchorroite, espadaite, magnesiof...
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The structure of picaite viewed down [101], the direction of the chains.
Published: 08 May 2019
Fig. 20. The structure of picaite viewed down [101], the direction of the chains.
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Crystal drawing of picaite; clinographic projection in standard orientation.
Published: 08 May 2019
Fig. 9. Crystal drawing of picaite; clinographic projection in standard orientation.
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Raman spectra of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite.
Published: 08 May 2019
Fig. 11. Raman spectra of camanchacaite, chinchorroite, espadaite, magnesiofluckite, picaite and ríosecoite.
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Picaite crystals with balls of camanchacaite. The field of view is 1.1 mm across, specimen #67285.
Published: 08 May 2019
Fig. 8. Picaite crystals with balls of camanchacaite. The field of view is 1.1 mm across, specimen #67285.
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The chain of edge-sharing octahedra with bridging As1O3(OH) and As2O2(OH)2 tetrahedra in the structure of picaite.
Published: 08 May 2019
Fig. 19. The chain of edge-sharing octahedra with bridging As1O 3 (OH) and As2O 2 (OH) 2 tetrahedra in the structure of picaite.
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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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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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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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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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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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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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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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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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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
Published: 07 August 2018
Mineralogical Magazine (2018) 82 (4): 1015–1021.
...., Polekhovsky, Y.S., Vigasina, M.F., Britvin, S.N. and Sidorov, E.G. (2018) Thermaerogenite, IMA 2018-021. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine , 82 , 1015–1021. IMA No. 2018-022 Picaite NaCa[AsO 3 OH][AsO 2 (OH) 2 ] Torrecillas mine, Salar Grande, Iquique...
Journal Article
Published: 01 July 2018
European Journal of Mineralogy (2018) 30 (4): 877–882.
... of Mineralogy , 30 , 877–882. IMA No. 2018-022 Picaite NaCa[AsO 3 OH][AsO 2 (OH) 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...
Journal Article
Published: 26 November 2019
Mineralogical Magazine (2020) 84 (2): 267–273.
...), 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...
FIGURES
First thumbnail for: Mauriziodiniite, NH 4 (As 2 O 3 ) 2 I, the ammoniu...
Second thumbnail for: Mauriziodiniite, NH 4 (As 2 O 3 ) 2 I, the ammoniu...
Third thumbnail for: Mauriziodiniite, NH 4 (As 2 O 3 ) 2 I, the ammoniu...
Journal Article
Published: 01 October 2019
Mineralogical Magazine (2019) 83 (5): f1–f2.
..., 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...
Journal Article
Published: 01 October 2019
Mineralogical Magazine (2019) 83 (5): b1–b2.
... 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...