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chalcomenite

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Journal Article
Published: 01 May 2017
European Journal of Mineralogy (2017) 29 (2): 269–277.
...Marina V. Charykova; Maxim I. Lelet; Vladimir G. Krivovichev; Natalya M. Ivanova; Evgeny V. Suleimanov Thermophysical and thermochemical calorimetric investigations were carried out on the synthetic analogue of chalcomenite. The synthesis of CuSeO 3 ·2H 2 O was realized from copper nitrate...
Journal Article
Published: 01 August 1992
American Mineralogist (1992) 77 (7-8): 834–838.
...Paul D. Robinson; P. K. Sen Gupta; George H. Swihart; Larry Houk Abstract Synthetic chalcomenite, Cu(H 2 O) 2 [SeO 3 ], is orthorhombic, P 2 1 2 1 2 1 , with a = 6.674(2), b = 9.161(1), c = 7.398(3), and Z = 4. Its structure has been refined to an unweighted residual of 0.019 using all 459 observed...
Journal Article
Published: 01 October 1964
American Mineralogist (1964) 49 (9-10): 1481–1485.
... that the space group and unit cell parameters of teineite resembled those of chalcomenite (CuSeO 3 ·2H 2 O), and they suggested that teineite is really the tellurium analogue of chalcomenite. They proved this when they worked out the structure of teineite (Zemann and Zemann, 1962). Copyright © 1964...
Journal Article
Published: 01 November 1937
American Mineralogist (1937) 22 (11): 1123.
...Charles Palache Abstract The author has had the privilege, through the kindness of Professor J. D. H. Donnay, of examining the notebooks and measured crystals left by the late Dr. H. Ungemach. Among these crystals are three of chalcomenite from a third locality, Sierra de Umango, Argentina...
Journal Article
Published: 01 June 1937
American Mineralogist (1937) 22 (6): 790–795.
...Charles Palache Abstract Good crystals of chalcomenite—CuSeO 3 · 2H 2 O from a new locality, Hiaco mine, Pacaake, about 30 km. ENE. of Colquichaca, Bolivia, are orthorhombic, disphenoidal; a : b : c = 0.7325 : 1 : 0.8077, in agreement with the form of the artificial salt. Forms: * c {001}, * b {010...
Image
The     $M_2^{{\rm 2 +}} {\rm O}_6\left( {{\rm H}_2{\rm O}} \right)_4$    d...
Published: 01 April 2018
Fig. 5. The $M_2^{{\rm 2 +}} {\rm O}_6\left( {{\rm H}_2{\rm O}} \right)_4$ dimer units in ( a ) millsite, ( b ) monoclinic CuSeO 3 ·2H 2 O, ( c ) ahlfeldite, ( d ) teineite and ( e ) chalcomenite. Only millsite has a sheet topology, whereas the others are frameworks. Teineite
Image
The     $M_2^{{\rm 2 +}} {\rm O}_6\left( {{\rm H}_2{\rm O}} \right)_4$    d...
Published: 01 April 2018
Fig. 5. The $M_2^{{\rm 2 +}} {\rm O}_6\left( {{\rm H}_2{\rm O}} \right)_4$ dimer units in ( a ) millsite, ( b ) monoclinic CuSeO 3 ·2H 2 O, ( c ) ahlfeldite, ( d ) teineite and ( e ) chalcomenite. Only millsite has a sheet topology, whereas the others are frameworks. Teineite
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Photomicrograph of polished section showing naumannite (grey) and the inter...
Published: 01 April 2002
F ig . 10. Photomicrograph of polished section showing naumannite (grey) and the intergrowth of chrisstanleyite and its Cu-dominant analogue (white), separated by chalcomenite (black). Width of field is 1.1 mm.
Journal Article
Published: 16 July 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (4): 643–652.
..., chalcomenite, and dolomite. Molybdomenite- P 2 1 / c is pale yellow in transmitted light and has a greasy luster. It is brittle and has a Mohs hardness of 3. No cleavage was observed. The calculated density is 7.034 g/cm 3 . An electron microprobe analysis yielded an empirical formula (based on 3 O apfu...
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a. Replacement of Se-bearing digenite (Dg) by lamellar Se-bearing spionkopi...
Published: 01 February 2008
F ig . 3. a. Replacement of Se-bearing digenite (Dg) by lamellar Se-bearing spionkopite + yarrowite (SpYa). These sulfides are altered to malachite (Mal) and chalcomenite (Ch), which occur between quartz grains (Qtz). Reflected light, plane-polarized light (sample 1778). b. Grains of euhedral
Journal Article
Published: 07 December 2023
Mineralogical Magazine (2024) 88 (1): 97–104.
... minerals are Co-bearing krut'aite–penroseite, chalcomenite, schmiederite, olsacherite, phosgenite, anglesite, cerussite and franksousaite. Guangyuanite is pale yellow–brown in transmitted light, transparent with white streak and vitreous lustre. It is brittle and has a Mohs hardness of ~3. No parting...
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Journal Article
Published: 29 September 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (5): 987–998.
... as aggregates of bladed or tabular crystals. Associated minerals are Co-bearing krut′aite–penroseite (matrix), chalcomenite, ‘clinochalcomenite’ (not IMA approved), molybdomenite, lepidocrocite, goethite, ahlfeldite, and calcite. Petermegawite is colorless in transmitted light and transparent with a white...
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Journal Article
Published: 01 April 2018
Mineralogical Magazine (2018) 82 (2): 433–444.
...Fig. 5. The $M_2^{{\rm 2 +}} {\rm O}_6\left( {{\rm H}_2{\rm O}} \right)_4$ dimer units in ( a ) millsite, ( b ) monoclinic CuSeO 3 ·2H 2 O, ( c ) ahlfeldite, ( d ) teineite and ( e ) chalcomenite. Only millsite has a sheet topology, whereas the others are frameworks. Teineite...
FIGURES | View All (8)
Journal Article
Published: 25 January 2023
Mineralogical Magazine (2023) 87 (3): 407–414.
... of radiating bladed crystals on a matrix consisting of Co-bearing krut'aite–penroseite. Associated minerals are Co-bearing krut'aite–penroseite, chalcomenite and ‘clinochalcomenite’. Bernardevansite is colourless in transmitted light, transparent with white streak and vitreous lustre. It is brittle and has...
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Journal Article
Published: 24 August 2022
The Canadian Mineralogist (2022) 60 (5): 787–795.
... and montroseite- and corvusite-bearing sandstone in association with baryte, chalcomenite, and volborthite. The mineral forms as brown equant (pseudocubic) or colorless bladed crystals. The streak is white, luster is vitreous to greasy, Mohs hardness is 2½, tenacity is brittle, and fracture is conchoidal...
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Journal Article
Published: 27 July 2022
Mineralogical Magazine (2022) 86 (5): 792–798.
... included in colourless anglesite. Associated minerals are Co-bearing krut'aite–penroseite, chalcomenite, schmiederite, olsacherite, phosgenite, anglesite and cerussite. Franksousaite is blue in transmitted light, transparent with very pale blue streak and has a vitreous lustre. It is brittle and has a Mohs...
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Journal Article
Published: 01 May 2016
European Journal of Mineralogy (2016) 28 (2): 479–484.
...-rich krut’aite–penroseite, dolomite and goethite. Associated minerals are: ahlfeldite, allophane, calcite, chalcomenite, favreauite, felsőbányaite, malachite and molybdomenite. Crystals occur in drusy/scaly coatings and compact balls, the latter to 0.5 mm in diameter. Individual crystals are up...
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Journal Article
Published: 01 December 2014
European Journal of Mineralogy (2014) 26 (6): 771–781.
.... The mineral occurs in vughs in a matrix of (Co, Cu)-rich penroseite, dolomite and goethite. Associated minerals are: ahlfeldite, allophane, calcite, chalcomenite, malachite, molybdomenite and an unnamed Al selenite. Favreauite forms tiny green square tabular crystals, flattened on {001}, up to 0.1 mm on edge...
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Unit-cell parameters of millsite and related phases.          Space group  ...
Published: 01 April 2018
Table 7. Unit-cell parameters of millsite and related phases. Space group a (Å) b (Å) c (Å) β (°) V (Å 3 ) Teineite (1) P 2 1 2 1 2 1 6.634 9.597 7.428 − 472.91 Chalcomenite (2) P 2 1 2 1 2 1 6.666 9.169 7.373 − 450.64 Syn-chalcomenite (3) P 2
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Unit-cell parameters of millsite and related phases.          Space group  ...
Published: 01 April 2018
Table 7. Unit-cell parameters of millsite and related phases. Space group a (Å) b (Å) c (Å) β (°) V (Å 3 ) Teineite (1) P 2 1 2 1 2 1 6.634 9.597 7.428 − 472.91 Chalcomenite (2) P 2 1 2 1 2 1 6.666 9.169 7.373 − 450.64 Syn-chalcomenite (3) P 2