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Barbosalite

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Big Photo

Criminoso claim, Água Boa, Doce valley, Minas Gerais, Brazil
© Van King

Show Barbosalite Photos (22)



Formula:
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
System:MonoclinicColour:Black to dark ...
Hardness:5½ - 6
Member of:Lazulite Group
Name:Named by Marie Louise Lindberg (Smith) and William T. Pecora in 1955 in honor of Brazilian geologist Aluízio Licínio de Miranda Barbosa (b. 1916 Alto Rio Doce, Minas Gerais, Brasil -), emeritus professor of geology of the School of Mines at Oro Preto, Minas Gerais, Brasil.


Lazulite Group.

Classification of Barbosalite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/B.08-40
Nickel-Strunz 10th (pending) edition ID:8.BB.40

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Dana 7th edition ID:41.10.1.4
Dana 8th edition ID:41.10.1.4

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
10 : (AB)3(XO4)2Zq
Hey's CIM Ref.:19.13.1

19 : Phosphates
13 : Phosphates of Fe alone
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Type Occurrence of Barbosalite

Type Locality:Sapucaia Mine (Proberil mine), Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Brazil
General Appearance of Type Material:Black drusy crystals
Year of Discovery:1955
Geological Setting of type material:Granite pegmatite
Associated Minerals at type locality:
VivianiteTriphyliteTavoriteRoscherite GroupRockbridgeite
HureauliteHeterosite

Physical Properties of Barbosalite

Lustre:Vitreous, Sub-Vitreous, Resinous, Waxy, Greasy, Dull
Diaphaneity (Transparency):Translucent, Opaque
Colour:Black to dark blue-green, green, Blue green, Green blue, Greenish black, Black
Streak:Dark blue to dark green
Hardness (Mohs):5½ - 6
Tenacity:Brittle
Cleavage:None Observed
Fracture:Conchoidal, Sub-Conchoidal
Density (measured):3.60 - 3.62 g/cm3
Density (calculated):3.72 g/cm3

Crystallography of Barbosalite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Space Group Setting:P21/c
Cell Parameters:a = 7.31Å, b = 7.48Å, c = 7.52Å
β = 120.15°
Ratio:a:b:c = 0.977 : 1 : 1.005
Unit Cell Volume:V 349.94 ų
Z:2
Morphology:Blocky to rectangular prismatic crystal, also botryoidal
X-Ray Powder Diffraction:
d-spacingIntensity
4.84 (60)
3.361 (100)
3.313 (80)
3.239 (60)
3.160 (60)
2.327 (40)
1.309 (40)

Optical Data of Barbosalite

Type:Biaxial (+)
RI values: nα = 1.760 - 1.780 nβ = 1.770 - 1.810 nγ = 1.835 - 1.840
2V:Measured: 64° to 70°
Birefringence:0.075
Maximum Birefringence:δ = 0.075

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v strong
Pleochroism:Visible
Comments:X=Y>Z; X=Y = dark blue green; Z = dark olive green

Chemical Properties of Barbosalite

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

Relationship of Barbosalite to other Species

Member of:Lazulite Group
Other Members of Group:

- +
Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
Wilhelmkleinite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
8.BB.05Amblygonite
LiAl(PO
 
4
)F
8.BB.05Montebrasite
LiAl(PO
 
4
)(OH)
8.BB.05Tavorite
LiFe
3+
 
(PO
 
4
)(OH)
8.BB.10Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
8.BB.10Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Sarkinite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.15Triploidite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
8.BB.15Wolfeite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)(OH)
8.BB.15Stanĕkite
(Mn
2+
 
,Fe
2+
 
,Mg)Fe
3+
 
(PO
 
4
)O
8.BB.15Joosteite
Mn
2+
 
(Mn
3+
 
,Fe
3+
 
)(PO
 
4
)O
8.BB.15Hydroxylwagnerite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Holtedahlite
Mg
 
2
(PO
 
4
)(OH)
8.BB.20Satterlyite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
2
(PO
 
4
)(OH,O)
8.BB.25Althausite
Mg
 
2
(PO
 
4
)(OH,F)
8.BB.30Adamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.30Eveite
Mn
2+
2
(AsO
 
4
)(OH)
8.BB.30Libethenite
Cu
 
2
(PO
 
4
)(OH)
8.BB.30Olivenite
Cu
 
2
(AsO
 
4
)(OH)
8.BB.30Zincolibethenite
CuZn(PO
 
4
)(OH)
8.BB.30Zincolivenite
CuZn(AsO
 
4
)(OH)
8.BB.30Auriacusite
Fe
3+
 
Cu
2+
 
(AsO
 
4
)O
8.BB.35Paradamite
Zn
 
2
(AsO
 
4
)(OH)
8.BB.35Tarbuttite
Zn
 
2
(PO
 
4
)(OH)
8.BB.40Hentschelite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Lazulite
(Mg,Fe
2+
 
)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Scorzalite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.40Wilhelmkleinite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BB.45Trolleite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
8.BB.50Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
8.BB.55Phosphoellenbergerite
Mg
 
14
(PO
 
4
)
 
6
(HPO
 
4
,CO
 
3
)
 
2
(OH)
 
6
8.BB.60Urusovite
CuAl(AsO
 
4
)O
8.BB.65Theoparacelsite
Cu
 
3
(As
 
2
O
 
7
)(OH)
 
2
8.BB.70Turanite
Cu
 
5
(VO
 
4
)
 
2
(OH)
 
4
8.BB.75Stoiberite
Cu
 
5
(VO
 
4
)
 
2
O
 
2
8.BB.80Fingerite
Cu
 
11
(VO
 
4
)
 
6
O
 
2
8.BB.85Averievite
Cu
 
6
(VO
 
4
)
 
2
O
 
2
Cl
 
2
8.BB.90Lipscombite
(Fe
2+
 
,Mn
2+
 
)Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
8.BB.90Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
8.BB.90Zinclipscombite
ZnFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
19.13.2Strengite
FePO
 
4
 · 2H
 
2
O
19.13.3Phosphosiderite
FePO
 
4
 · 2H
 
2
O
19.13.4Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
 · 2H
 
2
O
19.13.5Giniite
Fe
2+
 
Fe
3+
4
(PO
 
4
)
 
3
(OH)
 
5
 · 2H
 
2
O
19.13.6Whitmoreite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
19.13.7Tinticite
Fe
3+
5.34
(PO
 
4
)
 
3.62
(VO
 
4
)
 
0.38
(OH)
 
4
 · 6.7H
 
2
O
19.13.8Ferristrunzite
Fe
3+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
3
 · 5H
 
2
O
19.13.9Ferrostrunzite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 6H
 
2
O
19.13.10Beraunite
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
5
 · 4H
 
2
O
19.13.11Vivianite
Fe
2+
3
(PO
 
4
)
 
2
 · 8H
 
2
O
19.13.12Metavivianite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 6H
 
2
O

Other Names for Barbosalite

Other Languages:
German:Barbosalit
Russian:Барбосалит
Spanish:Barbosalita

Other Information

Fluorescence in UV light:Not fluorescent in UV
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 Barbosalite

Reference List:

- +
Lindberg, M.L. and Pecora, W.T. (1955) Tavorite and barbosalite, two new phosphate minerals from Minas Gerais, Brazil. American Mineralogist 40, 952-966.

Acta Crystallographica: 12: 695-697.

Internet Links for Barbosalite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    • Localities for Barbosalite

    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.
    Argentina
     
    • Córdoba
      • Punilla Department
        • Tanti
          • Cerro Blanco pegmatite district
    		Rocks & Min. (2007) 82:234
    Australia
     
    • New South Wales
      • Yancowinna Co.
        • Thackaringa District
    		Plimer, I.R. and Blucher, I.D. (1979) Wolfeite and barbosalite from Thackaringa, Australia. Mineralogical Magazine 43, 505-507 ; Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    • South Australia
      • Olary Province
        • Kalabity homestead area
    		Record of Sth.Aust. mines summary Olary SI5402 card 235
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Água Boa
    		Dunn, P.J., Leavens, P.B., Sturman, B.D.,Gaines, R.V. & Barbosa, C. d. P. (1978): Hureaulite and Barbosalite from Lavra do Criminoso, Minas Gerais, Brazil. Mineralogical Record. 9: 147-151
        • Conselheiro Pena
    		Sergio Varvello collection
          • Ferruginha
    		sergio varvello collection
        • Galiléia
          • Sapucaia do Norte
    		Science (1954): 119, 739.; Lindberg, M.L. and Pecora, W.T. (1955) Tavorite and barbosalite, two new phosphate minerals from Minas Gerais, Brazil. American Mineralogist 40, 952-966.
        • Mendes Pimentel
    		Atencio, D., Coutinho, J.M.V., Mascarenhas, Y.P., Ellena, J. (2006): Matioliite, the Mg-analog of burangaite, from Gentil mine, Mendes Pimentel, Minas Gerais, Brazil, and other occurrences. American Mineralogist, 91, 1932-1936.
    • Paraíba
      • Borborema mineral province
        • Pedra Lavrada
    		R. Wegner, H. Pöllmann, T. Witzke, & W. Schuckmann (1998): Colquiriite, carlhintzeite, ralstonite and pachnolite from Serra Branca-Pegmatite/Brazil.- Proceedings 17th General Meeting, IMA, August 1998, Toronto, A151
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Velké Meziříčí
    		Škoda, R., Staněk, J., Čopjaková, R.: Minerální asociace fosfátových nodulí z granitického pegmatitu od Cyrilova u Velkého Meziříčí, Moldanubikum; část 1 – primární a exsoluční fáze. Acta Mus. Moraviae, Sci. geol., 2007, 92, 59-74.
    France
     
    • Limousin
      • Haute-Vienne
        • Bessines-sur-Gartempe
    		http://perso.wanadoo.fr/jeldemine/listes%20mineraux.html
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • Pleystein
    		Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
            • Waidhaus
              • Hagendorf
    		http://www.berthold-weber.de/h_miner.htm
          • Waldmünchen
            • Althütte
    		Lapis, 10 (4), 13-17.
    Madagascar
     
    • Fianarantsoa Province
      • Amoron'i Mania Region
        • Ampandramaika-Malakialina Pegmatite Field
          • Ambatofinandrahana District
    		Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 17-18
    Morocco
     
    • Marrakech-Tensift-El Haouz Region
      • El Kelaâ des Sraghna Province
        • Sidi Bou Othmane
    		Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    Namibia
     
    • Erongo Region
      • Karibib District
        • Karibib Townlands Farm 57
    		- Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern, 464 pp. (in English)
        • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
    		P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
        • Tsaobismund Farm 85
    		Contrib Mineral Petrol (1986) 92:502-517
        • Usakos
    		Von Bezing, L., Bode, R., and Jahn, S., (2008) Namibia Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag GmbH, Haltern. 409 (in English).
    Keller, P. (1974): Phosphatmineralien aus Pegmatiten Sudwestafrikas, Der Aufschluss 25,577-591(1974)
    Portugal
     
    • Guarda District
      • Gouveia
        • Folgosinho
    • Viseu District
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    Rwanda
     
    • Western Province
      • Gatumba District
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Daltry, V.D.C. and O. von Knorring (1998) Type-Mineralogy of Rwanda with Particular Reference to the Buranga Pegmatite. Geologica Belgica 1:1-9
    South Africa
     
    • Northern Cape Province
      • Namaqualand
        • Kenhardt District
    		Minerals of South Africa
    Spain
     
    • Castile and Leon
      • Salamanca
        • Garcirrey
    		Encarnación Roda-Robles, Alfonso Pesquera (2007) Locality no. 4: The Phosphates-Rich Cañada Pegmatite (Aldehuela de La Bóveda, Salamanca, Spain) in ALEXANDRE LIMA & ENCARNACIÓN RODA ROBLES ed (2007) GRANITIC PEGMATITES: THE STATE OF THE ART - FIELD TRIP GUIDEBOOK. MEMÓRIAS N. º 9, UNIV. DO PORTO, FACULDADE DE CIÊNCIAS, DEPARTAMENTO DE GEOLOGIA pp 67-72.
      • Zamora
        • Villar del Buey
          • Pinilla de Fermoselle
    UK
     
    • England
      • Cornwall
        • Liskeard District
          • Linkinhorne
            • Minions
    		No reference listed
        • St Austell District
          • Treverbyn
            • Stenalees
    		[Elton, N. J. (1998): Barbosalite, frondelite and other phosphates from Gunheath China Clay Pit, St Austell, Cornwall, England. Journal of the Russell Society 7, 15-18.
    USA
     
    • Alabama
      • Coosa Co.
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Leavens, P. B. & Simpson, Thomas A. (1975): Iron-manganes phospates of the Williams pegmatites, Coosa County, Alabama. Mineralogical Record 6 (2): 67-73
    • New Hampshire
      • Grafton Co.
        • Groton
    		Gaines, Richard V., Catherine, H., Skinner, W., Foord, E.E., Mason, B., and Rosenzweig, A. (1997), Dana’s New Mineralogy: The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: eighth edition. John Wiley and Sons, Inc., 1819pp.: 875.; Mineralogical Record (1973) 4:103-130
    • South Dakota
      • Custer Co.
        • Custer District
          • Custer
    		Am Min (1969), 54:969-972
          • Fourmile
    		Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
      • Pennington Co.
        • Keystone District
          • Keystone
    		American Mineralogist (1984): 69: 380-382.
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