Segelerite R080127

Name: Segelerite
RRUFF ID: R080127
Ideal Chemistry: CaMgFe3+(PO4)2(OH)·4H2O
Locality: Tip Top mine, Custer County, South Dakota, USA
Source: Thomas A. Loomis TL-41 [view label]
Owner: RRUFF
Description: Light yellow radiating acicular crystals, on a matrix of rockbridgeite and associated with leucophosphite (R080126)
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Overite (3) ]
Sample Description: Unoriented sample

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RRUFF ID: R080127
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R080127.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 14.809(3)Å    b: 18.747(5)Å    c: 7.306(2)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 2028.3(6)Å3    Crystal System: orthorhombic
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Segelerite

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]

Moore P B, Ito J (1974) I. Jahnsite, segelerite, and robertsite, three new transition metal phosphate species II. Redefinition of overite, an isotype of segelerite III. Isotypy of robertsite, mitridatite, and arseniosiderite, American Mineralogist, 59, 48-59   [view file]

Moore P B, Araki T (1977) Overite, segelerite, and jahnsite: a study in combinatorial polymorphism, American Mineralogist, 62, 692-702   [view file]

Grey I E, Mumme W G, Downes P J, Grguric B A, Gable R W (2019) Segelerite from the Mount Deverell variscite deposit, Western Australia. Hydrogen bonding and relationship to jahnsite, European Journal of Mineralogy, 31, 465-471   [view file]