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|   |   | Name: Frondelite RRUFF ID: R050622 Ideal Chemistry: (Mn2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)5 Locality: Hagendorf, Bavaria, Germany Source: University of Arizona Mineral Museum 2647 [view label] Owner: RRUFF Description: Black bladed crystals in divergent radial aggregates Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. | 
| Mineral Group: [ Rockbridgeite (3) ] | ||
| CHEMISTRY | ||||||||
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| BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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| INFRARED SPECTRUM (Attenuated Total Reflectance) | |||||||||||||
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| POWDER DIFFRACTION | |||||||
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| RRUFF ID: | R050622.1 | ||||||
| Sample Description: | Powder, cell parameters are from single crystal | ||||||
| Cell Refinement Output: | a: 13.958(7)Å    b: 16.794(8)Å    c: 5.175(1)Å alpha: 90° beta: 90° gamma: 90° Volume: 1212.9(5)Å3 Crystal System: orthorhombic | ||||||
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| REFERENCES for Frondelite | |
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| American Mineralogist Crystal Structure Database Record: [view record] | |
| 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] | |
| Lindberg M L (1949) Frondelite and the frondelite-rockbridgeite series, American Mineralogist, 34, 541-549 [view file] | |
| Redhammer G J, Roth G, Tippelt G, Bernroider M, Lottermoser W, Amthauer G, Hochleitner R (2006) Manganoan rockbridgeite Fe4.32Mn0.62Zn0.06(PO4)3(OH)5: structure analysis and 57Fe Mössbauer spectroscopy, Acta Crystallographica, C62, i24-i28 | |
| Dyar M D, Jawin E R, Breves E, Marchand G, Nelms M, Lane M D, Mertzman S A, Bish D L and Bishop J L (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data, American Mineralogist, 99, 914-942 [view file] | |
| Grey I E, Williams T, Kampf A R, Cashion J D, Gozukara Y, MacRae C M, Keck E (2018) Non-stoichiometry and local order in minerals with the rockbridgeite structure, European Journal of Mineralogy, 30, 773-783 | |
| Hålenius U, Hatert F, Pasero M, Mills S J (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 41. New minerals and nomenclature modifications approved in 2017 and 2018, Mineralogical Magazine, 82, 229–233 [view file] | |
| Grey I E, Kampf A R, Keck E, Cashion J D, MacRae C M, Gozukara Y, Peterson V K, Shanks F L (2019) The rockbridgeite group approved and a new member, ferrorockbridgeite, (Fe2+,Mn2+)2(Fe3+)3(PO4)3(OH)4(H2O), described from the Hagendorf Süd pegmatite, Oberpfalz, Bavaria, European Journal of Mineralogy, 31, 389-397 [view file] | |
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