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The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
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Name: Talmessite RRUFF ID: R060830 Ideal Chemistry: Ca2Mg(AsO4)2·2H2O Locality: Bou Azzer, Morocco Source: Michael Scott S101262 [view label] Owner: RRUFF Description: Aggregates of reddish orange platy crystals associated with reddish purple erythrite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
| Mineral Group: [ fairfieldite (16) ] | ||
| Quick search: [ All Talmessite samples (3) ] | ||
| CHEMISTRY | ||||||
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| RAMAN SPECTRUM | ||||||||||||
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| POWDER DIFFRACTION | |||||||
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| RRUFF ID: | R060830.9 | ||||||
| Sample Description: | Single crystal, powder profile is calculated | ||||||
| Cell Refinement Output: |
a: 5.8943(2)Å b: 6.9899(2)Å c: 5.5719(2)Å alpha: 97.353(2)° beta: 108.967(2)° gamma: 108.144(2)° Volume: 199.48(1)Å3 Crystal System: triclinic |
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| REFERENCES for Talmessite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Fleischer M (1957) New mineral names, American Mineralogist, 42, 580-586 [view file] |
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Bariand P, Herpin P (1960) Un arséniate de calcium et de magnésium, isomorphe de la β rosélite, Bulletin de la Société Française de Minéralogie et de Cristallographie, 83, 118-121 [view file] |
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Fleischer M (1960) New mineral names, American Mineralogist, 45, 1313-1317 [view file] |
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Pierrot R (1964) Contribution à la minéralogie des arséniates calciques et calcomagnésiens naturels, Bulletin de la Société Française de Minéralogie et de Cristallographie, 87, 169-211 [view file] |
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Fleischer M (1965) New mineral names, American Mineralogist, 50, 805-813 [view file] |
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Catti M, Ferraris G, Ivaldi G (1977) Hydrogen bonding in the crystalline state. Structure of talmessite, Ca2(Mg,Co)(AsO4)2·2H2O, and crystal chemistry of related minerals, Bulletin de la Société Française de Minéralogie et de Cristallographie, 100, 230-236 [view file] |
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Keller P, Hess H, Riffel H (1981) Die kristallstrukturen von zwei neuen calcium-zink-arsenat-mineralen von Tsumeb/Nambia, Zeitschrift für Kristallographie, 156, 70-71 [view file] |
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Nickel E H, Mandarino J A (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature, American Mineralogist, 72, 1031-1042 [view file] |
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Fleck M, Kolitsch U, Hertweck B (2002) Natural and synthetic compounds with kröhnkite-type chains: review and classification, Zeitschrift für Kristallographie, 217, 435-443 |
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Joswig W, Paulus E F, Liebscher B (2004) Crystal structure of dicalcium (cobalt,magnesium) diarsenate dihydrate, Ca2(Co0.532Mg0.468)[AsO4]2·2H2O, hydrogen bonding in talmessite, Zeitschrift für Kristallographie, 219, 341-342 |
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Frost R L (2009) Raman and infrared spectroscopy of arsenates of the roselite and fairfieldite mineral subgroups, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 71, 1788-1794 |
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