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Name: Ahlfeldite RRUFF ID: R100210 Ideal Chemistry: Ni(SeO3)·2H2O Locality: El Dragon mine, Potosi, Bolivia Source: William W Pinch [view label] Owner: RRUFF Description: Pink crystalline massive associated with blue chalcomenite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
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Mineral Group: [ Cobaltomenite (4) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R100210.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 6.4708(7)Å b: 8.7896(9)Å c: 7.5663(9)Å alpha: 90° beta: 99.022(6)° gamma: 90° Volume: 425.0(1)Å3 Crystal System: monoclinic |
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REFERENCES for Ahlfeldite | |
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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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Foshag W F (1935) New mineral names, American Mineralogist, 20, 678-678 [view file] |
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Herzenberg R, Ahlfeld F (1935) Blockit, ein neues Selenerz aus Bolivien, Zentralblatt für Mineralogie, Geologie und Paläontologie, 6, 277-279 [view file] |
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Ramdohr P (1935) Zwei neue mineralien, Zentralblatt für Mineralogie, Geologie und Paläontologie, Abt. A., no. 6, 189-189 [view file] |
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Fleischer M (1946) New mineral names, American Mineralogist, 31, 85-86 [view file] |
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Fleischer M (1954) New mineral names, American Mineralogist, 39, 848-852 [view file] |
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Fleischer M (1963) New mineral names, American Mineralogist, 48, 1178-1184 [view file] |
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Aristarain L F, Hurlbut C S (1969) Ahlfeldite from Pacacake Bolivia; A restudy, American Mineralogist, 54, 448-456 [view file] |
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Sturman B D, Mandarino J A (1974) The ahlfeldite-cobaltomenite series, The Canadian Mineralogist, 12, 304-307 [view file] |
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Wildner M (1990) Crystal structure refinements of synthetic cobaltomenite (CoSeO3·2H2O) and ahlfeldite (NiSeO3·2H2O), Neues Jahrbuch für Mineralogie, Monatshefte, 1990, 353-362 |
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Larrañaga A, Mesa J L, Pizarro J L, Peña A, Chapman J P, Arriortua M I, Rojo T (2005) Thermal, spectroscopic and magnetic properties of the CoxNi1-x(SeO3)·2H2O (x=0, 0.4, 1) phases, Crystal structure of Co0.4Ni0.6(SeO3)·2H2O, Materials Research Bulletin, 40, 781-793 |
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Charykova M V, Krivovichev V G, Lelet M I, Yakovenko O S, Suleimanov E V, Depmeier W, Semenova V V, Zorina M L (2014) A calorimetric and thermodynamic investigation of the synthetic analogs of cobaltomenite, CoSeO3·2H2O, and ahlfeldite, NiSeO3·2H2O, American Mineralogist, 99, 742-748 |
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