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carlfriesite

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Journal Article
Published: 12 February 2019
Mineralogical Magazine (2019) 83 (4): 539–549.
... polyhedra and H 2 O groups fill the space between the layers. Tlapallite is only the second naturally occurring compound containing tellurium in both the 4 + and 6 + oxidation states with a known crystal structure, the other being carlfriesite, CaTe 4+ 2 Te 6+ O 8 . Carlfriesite is the predominant secondary...
FIGURES | View All (10)
Journal Article
Published: 01 October 1978
American Mineralogist (1978) 63 (9-10): 847–852.
...H. Effenberger; J. Zemann; H. Mayer Abstract The structure of natural carlfriesite, given by Williams and Gaines (1975) as H 4 Ca(TeO 3 ) 3 , was determined by single-crystal standard X-ray procedures. The least-squares refinement for 595 observed reflections resulted in a conventional reliability...
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Secondary bonding environments in <span class="search-highlight">carlfriesite</span>. Primary bonds are shown as ...
Published: 12 February 2019
Fig. 10. Secondary bonding environments in carlfriesite. Primary bonds are shown as thicker bonds, secondary as thin bonds.
Image
Color photograph of <span class="search-highlight">carlfriesite</span> occurring as radial crystals on a fracture...
Published: 16 January 2020
Fig. 2. Color photograph of carlfriesite occurring as radial crystals on a fracture surface in jasperoid. Photograph © 2018 Dane S. Johnson.
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Pale yellow transparent crystals of <span class="search-highlight">carlfriesite</span> from Wildcat Prospect on s...
Published: 12 February 2019
Fig. 2. Pale yellow transparent crystals of carlfriesite from Wildcat Prospect on specimen number 67227. Field of view = 3.5 mm.
Journal Article
Published: 13 September 2021
The Canadian Mineralogist (2021) 59 (4): 729–739.
... oxysalts andymcdonaldite, burckhardtite, carlfriesite, eckhardite, frankhawthorneite, khinite, mcalpineite, tlapallite, and xocolatlite. The strongest powder diffraction lines are [ d obs Å( I obs )( hkl )]: 3.33(100)(011), 2.60(55)(110), 2.30(59)(111), 2.05(33)(021), and 1.80(88)(112). The average size...
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Journal Article
Published: 16 January 2020
The Canadian Mineralogist (2020) 58 (1): 85–97.
...Fig. 2. Color photograph of carlfriesite occurring as radial crystals on a fracture surface in jasperoid. Photograph © 2018 Dane S. Johnson. ...
FIGURES | View All (7)
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Pale emerald-green crystalline aggregates of tlapallite from Wildcat Prospe...
Published: 12 February 2019
Fig. 1. Pale emerald-green crystalline aggregates of tlapallite from Wildcat Prospect on specimen number 67231, closely associated with carlfriesite (yellow) and quartz. Field of view = 0.84 mm.
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Metal–oxygen bond lengths (Å) for <span class="search-highlight">carlfriesite</span>.         Te1–O1 × 2  1.877(3...
Published: 12 February 2019
Table 9. Metal–oxygen bond lengths (Å) for carlfriesite. Te1–O1 × 2 1.877(3) Te2–O4 1.916(3) Ca–O4 × 2 2.374(3) Te1–O1 × 2 1.934(3) Te2–O2 1.961(3) Ca–O1 × 2 2.443(3) Te1–O3 × 2 1.971(3) Te2–O4 2.100(3) Ca–O2 × 2 2.513(3) <Te1–O> 1.927 Te2–O3 2.104(3) Ca
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The crystal structure of <span class="search-highlight">carlfriesite</span>. Te 6+ O 6  octahedra are shown in da...
Published: 12 February 2019
Fig. 9. The crystal structure of carlfriesite. Te 6+ O 6 octahedra are shown in dark green, Te 4+ cations in dark green, Ca 2+ cations in light blue, and O atoms in red. Note that the Ca 2+ cations fill pore space in the three-dimensional framework.
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Bond-valence sums (in valence units) for <span class="search-highlight">carlfriesite</span>.          Te1  Te2  C...
Published: 12 February 2019
Table 10. Bond-valence sums (in valence units) for carlfriesite. Te1 Te2 Ca Σ O1 1.08 × 2↓ 0.31, 0.10 0.27 × 2↓ 1.76 O2 0.91 × 2↓ 1.00 0.23 × 2↓ 2.14 O3 0.98 × 2↓ 0.70, 0.03 0.22 × 2↓ 1.94 O4 1.11, 0.71 0.32 × 2↓ 2.15 Σ 5.95 3.97 2.08
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Back-scattered electron image of one of the grains used in the Caltech micr...
Published: 12 February 2019
Fig. 3. Back-scattered electron image of one of the grains used in the Caltech microprobe analyses of tlapallite from Wildcat Prospect. Field of view is 100 μm. EDS analyses were recorded at the numbered spots. Spots 16, 17, 18, and 22 are tlapallite blades. Spot 19 is carlfriesite. Spots 20, 21
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Optical images of wildcatite. (a) Several forms of wildcatite (red-brown gl...
Published: 13 September 2021
(NHMLAC 74539). The radiating pattern may be due to replacement of carlfriesite, which is known at this locality to form radiating crystal groups of this size.
Journal Article
Published: 18 August 2022
Mineralogical Magazine (2023) 87 (1): 10–17.
... phyllotellurate anion [Te 4+ 3 Te 6+ O 12 ] 12− ; Missen et al. , 2019 ) and carlfriesite, CaTe 4+ 2 Te 6+ O 8 (nanoporous [Te 4+ 2 Te 6+ O 8 ] 2– framework; Missen et al. , 2019 ), which both have their own new unique configurations. Structures Editor and reviewers Oleg Siidra and Nicolas Meisser...
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Journal Article
Published: 04 October 2019
Mineralogical Magazine (2019) 83 (6): 791–797.
... intergrowths. These sort of characterisations become even more problematic when more than one specimen is used to characterise the same mineral. Following the discreditations of ‘girdite’ and ‘oboyerite’, the number of remaining valid mixed-valence Te oxysalt minerals is just four. Carlfriesite and tlapallite...
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Atom coordinates, site occupancies and atomic displacement parameters (Å 2 ...
Published: 12 February 2019
Table 8. Atom coordinates, site occupancies and atomic displacement parameters (Å 2 ) for carlfriesite. All sites fully occupied. Atom x / a y / b z / c U eq U 11 U 22 U 33 U 23 U 13 U 12 Te1 ½ ½ ½ 0.00585(11) 0.00538(18) 0.0060(2) 0.00688
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Summary of information relating to data collection and structure refinement...
Published: 12 February 2019
Table 7. Summary of information relating to data collection and structure refinement of carlfriesite. Crystal data Ideal chemical formula CaTe 4+ 2 Te 6+ O 8 Crystal system, space group Monoclinic, I 2/ a Temperature (K) 293 a , b , c (Å) 9.9866(7), 5.67205(19
Journal Article
Published: 01 November 2008
American Mineralogist (2008) 93 (11-12): 1911–1920.
... * (Å 3 ) Reference * Volume per oxygen atom. Tellurites Carlfriesite CaTe 3 4+ +O 8 645.0 4 20.2 Effenberger et al. 1978 Denningite (Mn 2+ ,Ca,Zn)[Te 2 4+ O 5 ] 1014.4 8 25.4 Walitzi 1965 Mroseite CaTe 4+ O 2 CO 3 827.0 8 20.7 Fischer et al. 1975...
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Journal Article
Published: 21 October 2022
The Canadian Mineralogist (2022) 60 (5): 805–814.
... minerals, including numerous Te oxysalts: adanite, bairdite, burckhardtite, carlfriesite, choloalite, emmonsite, eztlite, fairbankite, frankhawthorneite, jensenite, khinite, kinichilite, kuksite, leisingite, mcalpineite, mojaveite, müllerite, northstarite, paratimroseite, poughite, quetzalcoatlite...
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Journal Article
Published: 08 April 2021
The Canadian Mineralogist (2020) 58 (6): 867–869.
..., synthetic soldalite, 9, windmountainite, 484 acanthite, 195, adanite, 403, alluaudite, 742, amazonite, 689, amblygonite, 738, andymcdonaldite, 85, argyrodite, 196, badakhshanite-(Y), 382, belomarinaite, 170, beryl, 806, biotite, 299, bismuthinite, 720, bismutite, 721, bobshannonite, 19, carlfriesite...