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Santabarbaraite

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Big Photo

Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy
© Thomas Witzke

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Formula:
Fe
3+
3
(PO
 
4
)
 
2
(OH)
 
3
 · 5H
 
2
O
System:AmorphousColour:brown, yellowish-brown
Name:Named for the type locality in the Santa Barbara mining district and for St. Barbara (4th century)
This page provides mineralogical data about Santabarbaraite.

Classification of Santabarbaraite

IMA status:Approved 2000
Strunz 8th edition ID:7/D.11-105
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Santabarbaraite

Type Locality:Santa Barbara lignite District, Cavriglia, Valdarno (Val d'Arno), Arezzo Province, Tuscany, Italy
Geological Setting of type material:pseudomorphous after vivianite

Physical Properties of Santabarbaraite

Lustre:Vitreous, Greasy
Diaphaneity (Transparency):Translucent
Colour:brown, yellowish-brown
Streak:yellow to yellowish-brown
Tenacity:Brittle
Cleavage:None Observed
Parting:parting according to the vivianite cleavage
Fracture:Conchoidal

Crystallography of Santabarbaraite

Crystal System:Amorphous

Optical Data of Santabarbaraite

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

Chemical Properties of Santabarbaraite

Formula:
Fe
3+
3
(PO
 
4
)
 
2
(OH)
 
3
 · 5H
 
2
O
Essential elements:Fe, H, O, P
All elements listed in formula:Fe, H, O, P

Relationship of Santabarbaraite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CE.05Chudobaite
(Mg,Zn)
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
8.CE.05Geigerite
Mn
2+
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
8.CE.10Newberyite
Mg(HPO
 
4
) · 3H
 
2
O
8.CE.15Brassite
Mg(HAsO
 
4
) · 4H
 
2
O
8.CE.20Phosphorrösslerite
Mg(HPO
 
4
) · 7H
 
2
O
8.CE.20Rösslerite
Mg(HAsO
 
4
) · 7H
 
2
O
8.CE.25Metaswitzerite
Mn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
8.CE.25Switzerite
(Mn,Fe)
 
3
(PO
 
4
)
 
2
 · 7H
 
2
O
8.CE.30Lindackerite
CuCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 8-9H
 
2
O
8.CE.30Ondrušite
CaCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
8.CE.30Veselovskýite
ZnCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
8.CE.30Pradetite
CoCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9H
 
2
O
8.CE.30Klajite
MnCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 9-10H
 
2
O
8.CE.35Bobierrite
Mg
 
3
(PO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Annabergite
Ni
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Arupite
Ni
 
3
(PO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Barićite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Erythrite
Co
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Ferrisymplesite
Fe
3+
3
(AsO
 
4
)
 
2
(OH)
 
3
 · 5H
 
2
O
8.CE.40Hörnesite
Mg
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Köttigite
Zn
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Manganohörnesite
(Mn,Mg)
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Parasymplesite
Fe
2+
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Vivianite
Fe
2+
3
(PO
 
4
)
 
2
 · 8H
 
2
O
8.CE.40Pakhomovskyite
Co
 
3
(PO
 
4
)
 
2
 · 8H
 
2
O
8.CE.45Symplesite
Fe
2+
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
8.CE.50Cattiite
Mg
 
3
(PO
 
4
)
 
2
 · 22H
 
2
O
8.CE.55Koninckite
Fe
3+
 
PO
 
4
 · 3H
 
2
O
8.CE.60Kaňkite
FeAsO
 
4
 · 3.5H
 
2
O
8.CE.65Steigerite
Al(VO
 
4
) · 3H
 
2
O
8.CE.70Metaschoderite
Al
 
2
(PO
 
4
)(VO
 
4
) · 6H
 
2
O
8.CE.70Schoderite
Al
 
2
(PO
 
4
)(VO
 
4
) · 8H
 
2
O
8.CE.75Malhmoodite
FeZr(PO
 
4
)
 
2
 · 4H
 
2
O
8.CE.75Zigrasite
MgZr(PO
 
4
)
 
2
 · 4H
 
2
O
8.CE.75Unnamed (Ca-analogue of Zigrasite)
CaZr[PO
 
4
]
 
2
 · 4H
 
2
O
8.CE.85Metaköttigite
(Zn,Fe,Fe)
 
3
(AsO
 
4
)
 
2
 · 8(H
 
2
O,OH)
8.CE.85Metavivianite
Fe
2+
3-x
Fe
3+
x
(PO
 
4
)
 
2
(OH)x · (8-x)H
 
2
O

Other Names for Santabarbaraite

Synonyms:
BosphoriteIMA2000-052Oxykerchenite
Other Languages:
German:Santabarbarait
Spanish:Santabarbaraita

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 Santabarbaraite

Reference List:

- +
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 Santabarbaraite

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  • Raman and XRD data at RRUFF project
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    • Localities for Santabarbaraite

    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.
    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.
    Australia
     
    • Victoria
      • Hamilton
        • 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
        • Oberpfälzer Wald
          • Vohenstrauß
            • 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
     
    • 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
    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.)
    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.)
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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