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Grattarolaite

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About GrattarolaiteHide

08335530015212479215693.jpg
Giuseppe Grattarola
Formula:
Fe3+3(PO4)O3
Colour:
reddish brown
Lustre:
Greasy
Specific Gravity:
4.08 (Calculated)
Crystal System:
Trigonal
Name:
Named in honor of Giuseppe Grattarola (1905, Vercelli, Italy - 1988, Florence, Italy), Professor of Mineralogy at the University of Florence, Italy.
This page provides mineralogical data about Grattarolaite.


Classification of GrattarolaiteHide

Approved
Approval Year:
1995
8.BE.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1

Physical Properties of GrattarolaiteHide

Greasy
Colour:
reddish brown
Streak:
brown
Cleavage:
None Observed
Density:
4.08 g/cm3 (Calculated)

Chemical Properties of GrattarolaiteHide

Formula:
Fe3+3(PO4)O3
IMA Formula:
Fe3+3O3(PO4)

Crystallography of GrattarolaiteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3m
Cell Parameters:
a = 7.994 Å, c = 6.855 Å
Ratio:
a:c = 1 : 0.858
Unit Cell V:
379.37 ų (Calculated from Unit Cell)
Z:
3

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0013505GrattarolaiteModaressi A, Courtois A, Gerardin R, Malaman B, Gleitzer C (1983) Fe3PO7, un cas de coordinence 5 du fer trivalent, etude structurale et magnetique Journal of Solid State Chemistry 47 245-2551983synthetic0293
CIF Raw Data - click here to close

Type Occurrence of GrattarolaiteHide

Synonyms of GrattarolaiteHide

Other Language Names for GrattarolaiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Grattarolaite associated with RodolicoiteFe3+PO4

Related Minerals - Nickel-Strunz GroupingHide

8.BE.05AugeliteAl2(PO4)(OH)3Mon. 2/m : B2/m
8.BE.15CornetiteCu3(PO4)(OH)3Orth. mmm (2/m 2/m 2/m) : Pbca
8.BE.20ClinoclaseCu3(AsO4)(OH)3Mon. 2/m : P21/b
8.BE.25ArhbariteCu2Mg(AsO4)(OH)3Tric. 1 : P1
8.BE.25GilmariteCu3(AsO4)(OH)3Tric.
8.BE.30AllactiteMn2+7(AsO4)2(OH)8Mon. 2/m : P21/b
8.BE.30FlinkiteMn2+2Mn3+(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m)
8.BE.30RaadeiteMg7(PO4)2(OH)8Mon. 2/m
8.BE.30ArganditeMn7(VO4)2(OH)8Mon. 2/m : P21/m
8.BE.35Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.35Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.40Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5Tric.
8.BE.45DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
8.BE.45Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23Trig. 3 : R3
8.BE.45KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16Orth. 2 2 2 : C2 2 21
8.BE.45McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
8.BE.45Arakiite(Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23Mon. m : Bb
8.BE.45Turtmannite(Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+xTrig.
8.BE.45CarlfrancisiteMn2+3(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42Trig. 3m (3 2/m) : R3c
8.BE.50SynadelphiteMn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.BE.55Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8Orth. mmm (2/m 2/m 2/m) : Ccca
8.BE.60KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
8.BE.65Sabelliite(Cu,Zn)2Zn(AsO4,SbO4)(OH)3Trig. 3 : P3
8.BE.70JarosewichiteMn2+3Mn3+(AsO4)(OH)6Orth. 2 2 2
8.BE.75TheisiteCu5Zn5(AsO4,SbO4)2(OH)14Orth.
8.BE.80CoparsiteCu4(AsO4,VO4)O2ClOrth.
8.BE.85WaterhouseiteMn2+7(PO4)2(OH)8Mon. 2/m : P21/b

Other InformationHide

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

References for GrattarolaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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: 470-471.
Journal of Solid State Chemistry: 47: 245-255.

Internet Links for GrattarolaiteHide

Localities for GrattarolaiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Tuscany
    • Arezzo Province
      • Cavriglia
Cipriani, C., Mellini, M., Pratesi, G., and Viti, C. (1997) Rodolicoite and grattarolaite, two new phosphate minerals from Santa Barbara Mine, Italy. European Journal of Mineralogy, 9, 5, 1101-1106; Chukanov, N.V., and Chervonnyi, A.D. (2016) Infrared spectroscopy of minerals and related compounds. Springer, Cham Heidelberg Dordrecht New York London, page 604.
    • Upper Valdarno (Upper Val d'Arno)
      • Santa Barbara lignite district (Santa Barbara lignite basin; Cavriglia lignite basin; San Giovanni Valdarno lignite basin)
Cipriani, C., Mellini, M., Pratesi, G., and Viti, C. (1997) Rodolicoite and grattarolaite, two new phosphate minerals from Santa Barbara Mine, Italy. European Journal of Mineralogy, 9, 5, 1101-1106; Chukanov, N.V., and Chervonnyi, A.D. (2016) Infrared spectroscopy of minerals and related compounds. Springer, Cham Heidelberg Dordrecht New York London, page 604.
 
Mineral and/or Locality  
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