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About SantabarbaraiteHide

Fe3+3(PO4)2(OH)3 · 5H2O
Orange, orange brown, yellowish-brown
Sub-Vitreous, Resinous, Waxy, Greasy
Specific Gravity:
Crystal System:
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.

Classification of SantabarbaraiteHide

Approval Year:

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
Transparent, Translucent
Orange, orange brown, yellowish-brown
yellow to yellowish-brown
None Observed
parting according to the vivianite cleavage
2.42 g/cm3 (Measured)    

Optical Data of SantabarbaraiteHide

RI values:
n = 1.695
Isotropic minerals have no birefringence
Surface Relief:

Chemical Properties of SantabarbaraiteHide

Fe3+3(PO4)2(OH)3 · 5H2O

Crystallography of SantabarbaraiteHide

Crystal System:
Pseudomorphs of vivianite or botryoidal crusts.
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

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.25MetaswitzeriteMn2+3(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 · 5H2O
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

ⓘ - 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.
  • 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
  • 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.
  • 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
        • Cavriglia
G. Pratesi, C. Cipriani, G. Giuli. & W. Birch (2003): Santabarbaraite: a new amorphous phosphate mineral.- Eur. J. Mineral. 15, 185-192
Roberto Bosi
  • Honshu Island
    • Kinki region
      • Hyogo Prefecture
        • Kobe city
          • Nishi-ku
            • Ikawadani-cho
Ohe Rikosha specimens.
  • Beja District
    • Odemira
      • São Luís
Alves, P. and Kampf, A.R. (2017) A mina de ferro e manganês da Herdade dos Pendões, Odemira, sudoeste de Portugal. Acopios, 8: 17-62. (in Portuguese).
  • Sverdlovsk Oblast
    • Nizhnii Tagil
Ponomarev, V.S., Erokhin, Yu.V., Pekov, V.I., and Chukanov, N.V. [Пономарув, В.С., Ерохин, Ю.В., Пеков, В.И., и Чуканов, Н.В.] (2017) Santabarbaraite from the oxidation zone of the Mednorudyansk field is the first finding in the Urals [Сантабарбараит из зоны окисления Меднорудянского месторождения - первая находка на Урале]. News of the Ural State Mining University [Известия Уральского Государственного Горного Университета], 4 (48), 36-41 (in Russian).
  • 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.
  • Crimea
    • 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.)
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Smithsonian Institution Mineral Reference Collection No.118924-01
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