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: Lópezite RRUFF ID: R070043 Ideal Chemistry: K2Cr2O7 Locality: Synthetic, made in the Czech Republic Source: Michael Scott S101397 [view label] Owner: RRUFF Description: Red single crystal Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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: | R070043.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 7.421(1)Å b: 13.370(4)Å c: 7.360(3)Å alpha: 98.03(2)° beta: 90.75(2)° gamma: 96.29(1)° Volume: 718.4(3)Å3 Crystal System: triclinic |
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REFERENCES for Lópezite | |
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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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Bandy M C (1937) Lopezite, a new mineral, American Mineralogist, 22, 929-930 [view file] |
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Brunton G (1973) Refinement of the structure of K2Cr2O7, Materials Research Bulletin, 8, 271-274 |
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Krivovichev S V, Kiryanova E V, Filatov S K, Burns P C (2000) β-K2Cr2O7, Acta Crystallographica, C56, 629-630 |
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Weakley T J R, Ylvisaker E R, Yager R J, Stephens J E, Wiegel R D, Mengis M, Bauer M R, Wu P, Photinos P, Abrahams S C (2007) Phase transitions in K2Cr2O7 and structural redeterminations of phase II, Acta Crystallographica, B60, 705-715 |
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