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Name: Gormanite RRUFF ID: R080075 Ideal Chemistry: Fe2+3Al4(PO4)4(OH)6·2H2O Locality: Linopolis, Minas Gerais, Brazil Source: Michael Scott S100786 [view label] Owner: RRUFF Description: Parallel aggregates of dark green acicular crystals associated with dark-brown prismatic childrenite (R140428), light-brown needle greifensteinite (R060588), and white fine-grained leucophosphite Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction. |
Mineral Group: [ Souzalite (2) ] | ||
Quick search: [ All Gormanite samples (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R080075.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 7.277(6)Å b: 11.812(9)Å c: 5.142(4)Å alpha: 90.23(4)° beta: 110.19(4)° gamma: 81.32(3)° Volume: 409.5(2)Å3 Crystal System: triclinic |
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REFERENCES for Gormanite | |
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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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Sturman B D, Mandarino J A, Mrose M E, Dunn P J (1981) Gormanite, Fe2+3Al4(PO4)4(OH6)·2H2O, the ferrous analogue of souzalite, and new data for souzalite, The Canadian Mineralogist, 19, 381-387 [view file] |
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Fleischer M, Cabri L J, Chao G Y, Mandarino J A, Pabst A (1982) New mineral names, American Mineralogist, 67, 621-624 [view file] |
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Le Bail A, Stephens P W, Hubert F (2003) A crystal structure for the souzalite/gormanite series from synchrotron powder diffraction data, European Journal of Mineralogy, 15, 719-723 |
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Jambor J L, Roberts A C (2004) New mineral names, American Mineralogist, 89, 467-471 [view file] |
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Frost R L, Erickson K L (2005) Near-infrared spectroscopic study of selected hydrated hydroxylated phosphates, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 61, 45-50 [link] |
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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] |
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