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Santabarbaraite

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Formula:
Fe3+3(PO4)2(OH)3 · 5H2O
Colour:
Orange, orange brown, yellowish-brown
Lustre:
Sub-Vitreous, Resinous, Waxy, Greasy
Specific Gravity:
2.42
Crystal System:
Amorphous
Name:
Named in 2000 by Giovanni Pratesi, Curzio Cipriani, Gabriele Giuli, and William D. Birch for the type locality in the Santa Barbara mining district, Valdarno, Tuscany, Italy. St. Barbara (4th century) is the patron saint of miners.
Consists of x-ray amorphous replacements of vivianite as well as smooth botryoidal crusts.


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Classification of SantabarbaraiteHide

Approved
Approval Year:
2000
7/D.11-105
8.CE.80

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
E : With only medium-sized cations, RO4:H2O about 1:2.5

Physical Properties of SantabarbaraiteHide

Sub-Vitreous, Resinous, Waxy, Greasy
Transparency:
Transparent, Translucent
Colour:
Orange, orange brown, yellowish-brown
Streak:
yellow to yellowish-brown
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
parting according to the vivianite cleavage
Fracture:
Conchoidal
Density:
2.42 g/cm3 (Measured)    

Optical Data of SantabarbaraiteHide

Type:
Isotropic
RI values:
n = 1.695
Birefringence:
0.000
Max Birefringence:
δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:
High

Chemical Properties of SantabarbaraiteHide

Formula:
Fe3+3(PO4)2(OH)3 · 5H2O

Crystallography of SantabarbaraiteHide

Crystal System:
Amorphous
Morphology:
Pseudomorphs of vivianite or botryoidal crusts.
Comment:
X-ray amorphous; Partial replacements said to contain poorly crystalline vivianite, but the analogy to the phosphate analog of parasymplesite are unsupported by data.

Type Occurrence of SantabarbaraiteHide

General Appearance of Type Material:
resinous botryoidal masses and waxy to resinous replacements of vivianite.
Geological Setting of Type Material:
pseudomorphous after vivianite

Synonyms of SantabarbaraiteHide

Other Language Names for SantabarbaraiteHide

Simplified Chinese:羟水磷铁石
Traditional Chinese:羥水磷鐵石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Vivianite1 photo of Santabarbaraite associated with Vivianite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.CE.XBabánekiteCu3(AsO4)2 · 8H2O Mon. 2/m : B2/m
8.CE.05Chudobaite(Mg,Zn)5(AsO4)2(HAsO4)2 · 10H2OTric.
8.CE.05GeigeriteMn2+5(AsO4)2(HAsO4)2 · 10H2OTric.
8.CE.10NewberyiteMg(HPO4) · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CE.15BrassiteMg(HAsO4) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CE.20PhosphorrössleriteMg(HPO4) · 7H2OMon. 2/m : P2/b
8.CE.20RößleriteMg(HAsO4) · 7H2OMon. 2/m : B2/b
8.CE.25MetaswitzeriteMn3(PO4)2 · 4H2OMon. 2/m : P2/b
8.CE.25Switzerite(Mn,Fe)3(PO4)2 · 7H2OMon.
8.CE.30LindackeriteCuCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30OndrušiteCaCu4(AsO4)2(HAsO4)2 · 10H2OTric. 1 : P1
8.CE.30VeselovskýiteZnCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30PradetiteCoCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30KlajiteMnCu4(AsO4)2(HAsO4)2 · 9-10H2OTric. 1 : P1
8.CE.35BobierriteMg3(PO4)2 · 8H2OMon. 2/m : B2/b
8.CE.40AnnabergiteNi3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40ArupiteNi3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40Barićite(Mg,Fe)3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40ErythriteCo3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40FerrisymplesiteFe3+3(AsO4)2(OH)3 · 5H2OMon.
8.CE.40HörnesiteMg3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40KöttigiteZn3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40Manganohörnesite(Mn,Mg)3(AsO4)2 · 8H2OMon. 2/m : P2/m
8.CE.40ParasymplesiteFe2+3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40VivianiteFe2+3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40PakhomovskyiteCo3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.45SymplesiteFe2+3(AsO4)2 · 8H2OTric. 1 : P1
8.CE.50CattiiteMg3(PO4)2 · 22H2OTric. 1 : P1
8.CE.55KoninckiteFe3+PO4 · 3H2OTet.
8.CE.60KaňkiteFeAsO4 · 3.5H2OMon.
8.CE.65SteigeriteAl(VO4) · 3H2OMon. 2/m : P21/m
8.CE.70MetaschoderiteAl2(PO4)(VO4) · 6H2OMon. 2/m : P2/m
8.CE.70SchoderiteAl2(PO4)(VO4) · 8H2OMon.
8.CE.75MalhmooditeFeZr(PO4)2 · 4H2OMon.
8.CE.75ZigrasiteMgZr(PO4)2 · 4H2OTric. 1 : P1
8.CE.75Unnamed (Ca-analogue of Zigrasite)CaZr[PO4]2 · 4H2OTric.
8.CE.85Metaköttigite(Zn,Fe,Fe)3(AsO4)2 · 8(H2O,OH)Tric. 1 : P1

Fluorescence of SantabarbaraiteHide

Not fluorescent in UV

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 SantabarbaraiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pratesi, G., C. Cipriani, G. Giuli. & W. Birch (2003): "Santabarbaraite: a new amorphous phosphate mineral", European Journal of Mineralogy: 15: 185-192.

Internet Links for SantabarbaraiteHide

Localities for SantabarbaraiteHide

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.
Australia
 
  • Victoria
    • Southern Grampians Shire
      • Wannon
        • Wannon River
G. Pratesi, C. Cipriani, G. Giuli. & W. Birch (2003): Santabarbaraite: a new amorphous phosphate mineral.- Eur. J. Mineral. 15, 185-192
Cameroon
 
  • Adamaoua Region
    • Adamaoua Plateau (Adamawa Plateau)
FRANSOLET, A.-M., OUSTRIERE, P., FONTAN, F. & PILLARD, F. (1984) La mantiennéite, une nouvelle espèce minérale du gisement de vivianite d'Anloua, Cameroun. Bulletin de Minéralogie 107, 737-744.
Germany
 
  • Bavaria
    • Upper Palatinate
      • Waidhaus
M.E. Ciriotti - 05.06.2008 - Probed
  • Hesse
    • Wetzlar
      • Weilburg
        • Essershausen
Blaß, G. & Möhn, G. (2010): Neue Mineralien von der Grube Mark bei Essershausen im Taunus. Mineralien-Welt 21 (2), 26-29.
Italy (TL)
 
  • Tuscany
    • Arezzo Province
      • Valdarno (Val d'Arno)
        • Cavriglia
G. Pratesi, C. Cipriani, G. Giuli. & W. Birch (2003): Santabarbaraite: a new amorphous phosphate mineral.- Eur. J. Mineral. 15, 185-192
Roberto Bosi
Japan
 
  • Honshu Island
    • Kinki region
      • Hyogo Prefecture
        • Kobe city
          • Nishi-ku
            • Ikawadani-cho
Ohe Rikosha specimens.
Spain
 
  • Aragón
    • Teruel
      • Mezquita de Loscos
Calvo, M. (2015). Minerales y Minas de España. Vol VII. Fosfatos, Arseniatos y Vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 479 págs.
Ukraine
 
  • Crimea Oblast'
    • Crimea peninsula
Geologiya SSSR (The geology of USSR) (1969) - Nedra (Moscou), 1969, vol. VIII, 575 p.
        • Kerchenskyi (Fe)-ore basin
Chukanov, Nikita, "Minerals of the Kersh iron-ore basin in Eastern Crimea", Mineralogical Almanac (2005), 8, p.70-72; P Haas collection
not refered listen
Arbuzov V.A. et al. (1967) Kerch Iron-Ore Basin (Kerchenskii Zhelezorydny Bassein)/ - Moscow:Nedra. - 576 h/ (Rus.)
            • Katerlez Trough
Kerch Iron-Ore Basin by Nikita V. Chukanov Mineralogical Almanac, volume 8, 2005. Famous Mineral Localities Series 112 pp.,
Chukanov Nikita V. (2005) Minerals of the Kerch iron0ore basin in Eastern Crimea. - Mineralogical Almanac, vol.8, 109 p.; Popov S.P. (1938) Mineralogy of the Crimea (Mineralogiya Kryma). Moscow-Leningrad:izd-vo AN SSSR, 352 p. (Rus.) Chukanov Nikita V. (2005). Minerals of the Kerch iron-ore basin in Eastern Crimea. Mineralogical Almanac, vol.8, 109 p. (Eng.)
USA
 
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Smithsonian Institution Mineral Reference Collection No.118924-01
Mineral and/or Locality  
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