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tinsleyite

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Journal Article
Published: 01 April 2012
The Canadian Mineralogist (2012) 50 (2): 559–569.
...Olga V. Yakubovich; Werner Massa; Olga V. Dimitrova Abstract Crystals of a potassium-rich variant of the mineral tinsleyite were obtained by hydrothermal synthesis in the system K 2 O–Al 2 O 3 –P 2 O 5 –H 2 O. The new phase is monoclinic, space group P 2 1 / n , a 9.4352(7), b 9.5254(10), c 9.4309...
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Journal Article
Published: 01 January 2002
European Journal of Mineralogy (2002) 14 (1): 157–164.
...Stefan MARINCEA; Delia DUMITRAS; Raymonde GIBERT Abstract This paper documents the occurrence of tinsleyite in the “dry” Cioclovina Cave, Sureanu Mountains, Romania. This is the first mention of tinsleyite as a cave mineral and the second find of this mineral species in the world. The mineral...
FIGURES | View All (4)
Journal Article
Published: 01 September 2001
American Mineralogist (2001) 86 (9): 1053–1056.
...Geraldo Magela da Costa; Rúbia Ribeiro Viana Abstract A second occurrence of tinsleyite, KAl 2 (PO 4 ) 2 (OH)·2H 2 O, is reported. The mineral exists as a thin layer in a quartzite wall partially covered by rock paintings, and was characterized by X-ray diffraction, thermal and chemical analysis...
FIGURES | View All (5)
Journal Article
Published: 01 April 1984
American Mineralogist (1984) 69 (3-4): 374–376.
...Pete J. Dunn; Roland C. Rouse; Thomas J. Campbell; Willard L. Roberts Abstract Tinsleyite, KAl 2 (PO 4 ) 2 (OH) · 2H 2 O, is a new species from the Tip Top Mine, near Custer, South Dakota. It is monoclinic, space group Pn or P 2/ n , with a = 9.602(8), b = 9.532(6), c = 9.543(11)Å, β = 103.16(6...
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Chemical analyses of <span class="search-highlight">tinsleyite</span> from Cioclovina.
Published: 01 January 2002
Table 1. Chemical analyses of tinsleyite from Cioclovina.
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Evolution of the cell parameters of <span class="search-highlight">tinsleyite</span> during heating.
Published: 01 January 2002
Table 3. Evolution of the cell parameters of tinsleyite during heating.
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Infrared spectrum of a selected sample of <span class="search-highlight">tinsleyite</span> from Cioclovina.
Published: 01 January 2002
Fig. 4. Infrared spectrum of a selected sample of tinsleyite from Cioclovina.
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Cell parameters of <span class="search-highlight">tinsleyite</span> and related  P 2 1 &#x2F; n  compounds.
Published: 01 January 2002
Table 2. Cell parameters of tinsleyite and related P 2 1 / n compounds.
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SEM photomicrograph of a typical <span class="search-highlight">tinsleyite</span> aggregate. Asterisk indicates a...
Published: 01 January 2002
Fig. 2. SEM photomicrograph of a typical tinsleyite aggregate. Asterisk indicates a well-shaped crystal.
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Positions and assumptions concerning the infrared absorption bands recorded...
Published: 01 January 2002
Table 4. Positions and assumptions concerning the infrared absorption bands recorded for tinsleyite from Cioclovina.
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The main structural elements of the K-rich variant of <span class="search-highlight">tinsleyite</span>. Displacem...
Published: 01 April 2012
Fig. 1 The main structural elements of the K-rich variant of tinsleyite. Displacement ellipsoids are drawn at the 50% probability level.
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The crystal structure of the K-rich variant of <span class="search-highlight">tinsleyite</span>. View along the  ...
Published: 01 April 2012
Fig. 4 The crystal structure of the K-rich variant of tinsleyite. View along the b axis. Color code as in Figure 3 .
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Thermal curves recorded for a <span class="search-highlight">tinsleyite</span> separate from Cioclovina: differen...
Published: 01 January 2002
Fig. 3. Thermal curves recorded for a tinsleyite separate from Cioclovina: differential thermogravimetric (top), differential scanning calorimetric (middle) and thermogravimetric(bottom).
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X-ray diffraction pattern of the studied sample. Arrows point to the main o...
Published: 01 September 2001
F igure 2. X-ray diffraction pattern of the studied sample. Arrows point to the main observed peaks of tinsleyite and Q is the main peak of quartz.
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Sketch of the “dry” Cioclovina cave (the mined area) showing the location o...
Published: 01 January 2002
Fig. 1. Sketch of the “dry” Cioclovina cave (the mined area) showing the location of the tinsleyite samples (marked with stars). Redrawn from Constantinescu et al. (1999) .
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Correlation between the iron content and the unit-cell parameters of tinsle...
Published: 01 September 2001
F igure 3. Correlation between the iron content and the unit-cell parameters of tinsleyite and leucophosphite. The data for Fe = 0.25 are for the present sample, and the solid line connects the data for the synthetic materials.
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Mössbauer spectra recorded at 77 K (top) and at room temperature (bottom) ...
Published: 01 September 2001
F igure 5. Mössbauer spectra recorded at 77 K (top) and at room temperature (bottom) for tinsleyite. Crosses represent the experimental data, and full lines represent the fitted subspectra and their sum.
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Comparative data for ammoniotinsleyite, <span class="search-highlight">tinsleyite</span> and spheniscidite.      ...
Published: 05 June 2020
Table 5. Comparative data for ammoniotinsleyite, tinsleyite and spheniscidite. Mineral Ammoniotinsleyite Tinsleyite Spheniscidite Formula (NH 4 )Al 2 (PO 4 ) 2 (OH)⋅2H 2 O KAl 2 (PO 4 ) 2 (OH)⋅2H 2 O (NH 4 )Fe 3+ 2 (PO 4 ) 2 (OH)⋅2H 2 O Crystal system Monoclinic
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Powder infrared absorption spectra of ( a ) ammoniotinsleyite and ( b ) Fe-...
Published: 05 June 2020
Fig. 3. Powder infrared absorption spectra of ( a ) ammoniotinsleyite and ( b ) Fe-rich tinsleyite with the composition (K 0.86 Ca 0.10 Na 0.04 )(Al 1.36 Fe 0.57 Mg 0.05 )(PO 4 ) 2.00 (OH)⋅2H 2 O from Mejillones Peninsula, Mejillones, Antofagasta, Chile.
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The crystal structure of the K-rich variant of <span class="search-highlight">tinsleyite</span> in projection alo...
Published: 01 April 2012
Fig. 3 The crystal structure of the K-rich variant of tinsleyite in projection along [100]. Grey: Al octahedra, yellow: P tetrahedra, large orange spheres: K + ions, small grey spheres: hydrogen atoms, red spheres: oxygen atoms.