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Adranosite-(Fe)

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Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany
© Frank de Wit

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Formula:
(NH
 
4
)
 
4
NaFe
3+
2
(SO
 
4
)
 
4
Cl(OH)
 
2
Alternative crystal-chemical formula, emphasising the presence of -Na-Cl-Na-Cl- chains in the structure:(NH4)4Fe3+ 2(OH)2(SO4)4.NaCl; some NH4 may be replaced by K.
System:Tetragonal
Name:For the relation to Adranosite.


Originally described as an anthropogenic phase that has formed on a burning coal dump ["Unnamed (NH4-Fe-Na-Cl Sulphate)"]. Subsequently found in a natural fumarole.

The Fe3+ analogue of Adranosite.

Structurally, an unusual salt inclusion phase (Kolitsch & Brandstätter, 2007; analyses on material collected by Frank de Wit).

Classification of Adranosite-(Fe)

IMA status:Approved 2011
mindat.org URL:http://www.mindat.org/min-38898.html
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Type Occurrence of Adranosite-(Fe)

Type Locality:La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy
Place of Conservation of Type Material:Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Università degli Studi di Milano, sample number 2010-02)
C.L. Garavelli Museum, Dipartimento Geomineralogico, Università di Bari.

Crystallography of Adranosite-(Fe)

Crystal System:Tetragonal
Class (H-M):4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:I41/acd {I41/a 2/c 2/d}
Cell Parameters:a = 18.261(2) Å, c = 11.562(1) Å
Ratio:a:c = 1 : 0.633
Unit Cell Volume:V 3,855.51 ų (Calculated from Unit Cell)
Z:16
Morphology:Acicular.
Comment:Cell of anthropogenic material: a = 18.259(3), c = 11.557(2) A (Kolitsch and Brandstätter, 2007).
X-Ray Powder Diffraction:
d-spacingIntensity
9.134 (100)
6.462 (36)
4.569 (83)
3.232 (29)
3.047 (79)
2.891 (11)
2.156 (7)
1.697 (7)

Chemical Properties of Adranosite-(Fe)

Formula:
(NH
 
4
)
 
4
NaFe
3+
2
(SO
 
4
)
 
4
Cl(OH)
 
2


Alternative crystal-chemical formula, emphasising the presence of -Na-Cl-Na-Cl- chains in the structure:(NH4)4Fe3+ 2(OH)2(SO4)4.NaCl; some NH4 may be replaced by K.
Essential elements:Cl, Fe, H, N, Na, O, S
All elements listed in formula:Cl, Fe, H, N, Na, O, S

Other Names for Adranosite-(Fe)

Synonyms:
IMA2011-006Unnamed (NH4-Fe-Na-Cl Sulphate)
Other Languages:

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Adranosite-(Fe)

Reference List:

- +
U. Kolitsch and F. Brandstätter (2007) A new salt-inclusion sulphate phase from a burning coal dump: crystal-structural, chemical and Raman-spectroscopic characterisation. 16th Croatian-Slovenian Crystallographic Meeting, Petrčane, Croatia, June 13-17, 2007; Book of Abstracts, 12.

Mitolo, D., Demartin, F., Garavelli, A., Campostrini, I., Pinto D., Gramaccioli, C. M., Acquafredda, P., Kolitsch, U. (2011) New fumarole minerals at Vulcano: Adranosite-(Fe). Poster, Geoitalia 2011, http://www.geoitalia.org/index.php?action=folder_list&lang=it&folder_id=310

Demartin, F., Garavelli, A., Campostrini, I., Gramaccioli, C.M., Kolitsch, U., Mitolo, D. and Pinto, D. (2011) Adranosite-(Fe), IMA 2011-006. CNMNC Newsletter No. 9, August 2011, page 2539; Mineralogical Magazine, 75, 2535-2540.

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    • Localities for Adranosite-(Fe)

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Germany
     
    • North Rhine-Westphalia
      • Aachen
        • Alsdorf
    		U. Kolitsch and F. Brandstätter (2007): A new salt-inclusion sulphate phase from a burning coal dump: crystal-structural, chemical and Raman-spectroscopic characterisation. 16th Croatian-Slovenian Crystallographic Meeting, Petrčane, Croatia, June 13-17, 2007; Book of Abstracts, 12.
    Italy
     
    • Sicily
      • Messina Province
        • Eolie Islands (Aeolian Islands)
          • Lipari
            • Vulcano Island
    		Mitolo, D., Demartin, F., Garavelli, A., Campostrini, I., Pinto D., Gramaccioli, C. M., Acquafredda, P., Kolitsch, U. (2011): New fumarole minerals at Vulcano: Adranosite-(Fe). Poster, Geoitalia 2011; Demartin, F., Garavelli, A., Campostrini, I., Gramaccioli, C.M., Kolitsch, U., Mitolo, D. and Pinto, D. (2011) Adranosite-(Fe), IMA 2011-006. CNMNC Newsletter No. 9, August 2011, page 2539; Mineralogical Magazine, 75, 2535-2540.
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