Important Update News
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.
We are grateful to NASA for the funding of this effort.
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Name: Rhomboclase RRUFF ID: R070507 Ideal Chemistry: (H5O2)Fe3+(SO4)2·2H2O Locality: Alcaparrosa, Antofogasta, Chile Source: James Shigley [view label] Owner: RRUFF Description: Colorless tabular crystals, associated with pale yellow-brown römerite, white jokokuite (identifed only by Raman), and colorless prismatic or acicular ferrinatrite (R170042) Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Group: [ Not in a structural group (133) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||
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RRUFF ID: | R070507.9 | ||||
Sample Description: | Single crystal, powder profile is calculated | ||||
Cell Refinement Output: |
a: 9.7309(29)Å b: 18.2994(85)Å c: 5.4292(28)Å alpha: 90° beta: 90° gamma: 90° Volume: 966.77(73)Å3 Crystal System: orthorhombic |
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DOWNLOADS:
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REFERENCES for Rhomboclase | |
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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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Krenner J S (1891) Két új magyar ásvány, Akadémiai Értesítö, 2, 96-96 [view file] |
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Krenner J (1928) Zwei neue Mineralien aus Ungarn, Zentralblatt für Mineralogie, Geologie und Paläontologie, 1928, 265-271 [view file] |
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Foshag W F (1929) New mineral names, American Mineralogist, 14, 77-79 [view file] |
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Mereiter K (1974) Die kristallstruktur von rhomboklas (H5O2)+{Fe[SO4]2·2H2O}-, Tschermaks Mineralogische und Petrographische Mitteilungen, 21, 216-232 |
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Jambor J L, Puziewicz J, Roberts A C (1995) New mineral names, American Mineralogist, 80, 404-409 [view file] |
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Majzlan J, Navrotsky A, McCleskey R B, Alpers C N (2006) Thermodynamic properties and crystal structure refinement of ferricopiapite, coquimbite, rhomboclase, and Fe2(SO4)3(H2O)5, European Journal of Mineralogy, 18, 175-186 |
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Peterson R C, Valyashko E, Wang R (2009) The atomic structure of (H3O)Fe3+(SO4)2 and rhomboclase, (H5O2)Fe3+(SO4)2·2H2O, The Canadian Mineralogist, 47, 625-634 [view file] |
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Xu W, Parise J B, Hanson J (2010) (H3O)Fe(SO4)2 formed by dehydrating rhomboclase and its potential existence on Mars, American Mineralogist, 95, 1408-1412 [view file] |
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Pitman K M, Noe Dobrea E Z, Jamieson C S, Dalton J B, Abbey W J, Joseph E C S (2014) Reflectance spectroscopy and optical functions for hydrated Fe-sulfates, American Mineralogist, 99, 1593-1603 |
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Liu Y, Wang A (2015) Dehydration of Na-jarosite, ferricopiapite, and rhomboclase at temperatures of 50 and 95°C: implications for Martian ferric sulfates, Journal of Raman Spectroscopy, 46, 493-500 |
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Majzlan J, Grevel K, Kiefer B, Nielsen U G, Grube E, Dachs E, Benisek A, White M A, Johnson M B (2017) Thermodynamics and crystal chemistry of rhomboclase, (H5O2)Fe(SO4)2·2H2O, and the phase (H3O)Fe(SO4)2 and implications for acid mine drainage, American Mineralogist, 102, 643-654 |
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