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Rodolicoite

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Castelnuovo Mine, Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy
© Leon Hupperichs

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Formula:
Fe
3+
 
PO
 
4
System:TrigonalColour:reddish brown
Lustre:Greasy
Name:Named after Francesco Rodolico (1905–1988), Professor of Mineralogy at the University of Florence, Italy, specialist of the history of geology and of building and ornamental materials, and author of "Le pietre delle città d’Italia".
This page provides mineralogical data about Rodolicoite.

Classification of Rodolicoite

IMA status:Approved 1995
Strunz 8th edition ID:7/A.01-15
Nickel-Strunz 10th (pending) edition ID:8.AA.05

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)
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Type Occurrence of Rodolicoite

Type Locality:Castelnuovo Mine, Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy
Year of Discovery:1997

Physical Properties of Rodolicoite

Lustre:Greasy
Diaphaneity (Transparency):Opaque
Colour:reddish brown
Streak:brown
Cleavage:None Observed
Density (calculated):3.04 g/cm3

Crystallography of Rodolicoite

Crystal System:Trigonal
Class (H-M):3 2 - Trapezohedral
Space Group:P31 2 1
Cell Parameters:a = 5.048Å, c = 11.215Å
Ratio:a:c = 1 : 2.222
Unit Cell Volume:V 247.50 ų (Calculated from Unit Cell)
Z:3

Chemical Properties of Rodolicoite

Formula:
Fe
3+
 
PO
 
4
Essential elements:Fe, O, P
All elements listed in formula:Fe, O, P

Relationship of Rodolicoite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AA.05Alarsite
AlAsO
 
4
8.AA.05Berlinite
AlPO
 
4
8.AA.10Beryllonite
NaBePO
 
4
8.AA.15Hurlbutite
CaBe
 
2
(PO
 
4
)
 
2
8.AA.20Lithiophosphate
Li
 
3
PO
 
4
8.AA.25Nalipoite
NaLi
 
2
PO
 
4
8.AA.30Olympite
Na
 
5
Li(PO
 
4
)
 
2

Other Names for Rodolicoite

Synonyms:
IMA1995-038
Other Languages:
German:Rodolicoit
Russian:Родоликоит
Spanish:Rodolicoita

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 Rodolicoite

Reference List:

- +
Cipriani, C., M. Mellini, G. Pratesi & C. Viti (1997) Rodolicoite and grattarolaite, two new phosphate minerals from Santa Barbara Mine, Italy.- European Journal of Mineralogy: 9: 1101-1106.

Mineralogical Record: 29: 476.

Canadian Journal of Chemistry: 53: 2064-2067.

Zeitschrift für Kristallographie: 177: 139-142.

Internet Links for Rodolicoite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Rodolicoite details from Handbook of Mineralogy (PDF)
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    • Localities for Rodolicoite

    Hide Locality List
    (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.
    Italy
     
    • Tuscany
      • Arezzo Province
        • Valdarno (Val d'Arno)
          • Cavriglia
            • Santa Barbara lignite District
    		C. Cipriani et al. (1997) Eur. J. Mineral. 9, 1101-1106
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