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Pyrobelonite

Big Photo

Iron Monarch open cut, Iron Knob, Middleback Range, Eyre peninsula, South Australia, Australia
© Stephan Wolfsried

Show Pyrobelonite Photos (13)
Formula:
PbMn
2+
 
[OH|VO
 
4
]
System:OrthorhombicColour:Red
Hardness:3½
Name:From the Greek πΰρ for "fire" and βελόυη for "needle," in allusion to its colour and the acicular habit of its crystals.
Isostructural with:Descloizite-Mottramite Series


Adelite-Descloizite Group.

Classification of Pyrobelonite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/B.27-50
Nickel-Strunz 10th (pending) edition ID:8.BH.40

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
Dana 8th edition ID:41.5.2.3

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
Hey's CIM Ref.:21.4.17

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni
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Type Occurrence of Pyrobelonite

Type Locality:Långban, Filipstad, Värmland, Sweden
Year of Discovery:1919
Associated Minerals at type locality:
PyrochroiteManganiteHausmanniteCalciteBaryte

Physical Properties of Pyrobelonite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent
Colour:Red
Streak:Orange-yellow, reddish
Hardness (Mohs):3½
Tenacity:Brittle
Cleavage:None Observed
Fracture:Conchoidal
Density (measured):5.377 g/cm3
Density (calculated):5.39 g/cm3

Crystallography of Pyrobelonite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma {P21/n 21/m 21/a}
Cell Parameters:a = 7.62Å, b = 6.17Å, c = 9.47Å
Ratio:a:b:c = 1.235 : 1 : 1.535
Unit Cell Volume:V 445.24 ų (Calculated from Unit Cell)
Morphology:Acicular [001].

Optical Data of Pyrobelonite

Type:Biaxial (-)
RI values: nα = 2.320 nβ = 2.360 nγ = 2.370
2V:Measured: 29° , Calculated: 52°
Maximum Birefringence:δ = 0.050

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:none
Pleochroism:Visible
Comments:shades of red-brown.

Chemical Properties of Pyrobelonite

Formula:
PbMn
2+
 
[OH|VO
 
4
]
Essential elements:H, Mn, O, Pb, V
All elements listed in formula:H, Mn, O, Pb, V

Relationship of Pyrobelonite to other Species

Member of Group:
Adelite-Descloizite Group:
Related Minerals - Nickel-Strunz Grouping):

- +
8.BH.05Thadeuite
Ca(Mg,Fe
2+
 
)
 
3
[(OH,F)|PO
 
4
]
 
2
8.BH.10Durangite
NaAl[F|AsO
 
4
]
8.BH.10Isokite
CaMg[F|PO
 
4
]
8.BH.10Lacroixite
NaAl[F|PO
 
4
]
8.BH.10Maxwellite
NaFe
3+
 
[F|AsO
 
4
]
8.BH.10Panasqueiraite
CaMg[(OH,F)|PO
 
4
]
8.BH.10Tilasite
CaMg[F|AsO
 
4
]
8.BH.15Drugmanite
Pb(Fe
3+
 
,Al)
 
2
[OH|PO
 
4
]
 
2
8.BH.20Bjarebyite
(Ba,Sr)(Mn
2+
 
,Fe
2+
 
,Mg)
 
2
Al
 
2
[OH|PO
 
4
]
 
3
8.BH.20Cirrolite
near Ca
 
3
Al
 
2
(PO
 
4
)
 
3
(OH)
 
3
8.BH.20Kulanite
Ba(Fe
2+
 
,Mn
2+
 
,Mg)
 
2
(Al,Fe
3+
 
)
 
2
[OH|PO
 
4
]
 
3
8.BH.20Penikisite
Ba(Mg,Fe
2+
 
,Ca)
 
2
Al
 
2
[OH|PO
 
4
]
 
3
8.BH.20Perloffite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Fe
3+
2
[OH|PO
 
4
]
 
3
8.BH.20Johntomaite
BaFe
2+
2
Fe
3+
2
[OH|PO
 
4
]
 
3
8.BH.25Bertossaite
(Li,Na)
 
2
(Ca,Fe
2+
 
,Mn
2+
 
)Al
 
4
[(OH,F)|PO
 
4
]
 
4
8.BH.25Palermoite
(Li,Na)
 
2
(Sr,Ca)Al
 
4
[PO
 
4
]
 
4
(OH)
 
4
8.BH.30Carminite
PbFe
3+
2
[OH|AsO
 
4
]
 
2
8.BH.30Sewardite
CaFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
8.BH.35Adelite
CaMg[AsO
 
4
](OH)
8.BH.35Arsendescloizite
PbZn[OH|AsO
 
4
]
8.BH.35Austinite
CaZn[OH|AsO
 
4
]
8.BH.35Cobaltaustinite
CaCo[OH|AsO
 
4
]
8.BH.35Conichalcite
CaCu[OH|AsO
 
4
]
8.BH.35Duftite
PbCu[OH|AsO
 
4
]
8.BH.35Gabrielsonite
PbFe[OH|AsO
 
4
]
8.BH.35Nickelaustinite
Ca(Ni,Zn)[OH|AsO
 
4
]
8.BH.35Tangeite
CaCu[OH|VO
 
4
]
8.BH.35Gottlobite
CaMg[OH|(VO
 
4
,AsO
 
4
)]
8.BH.40Čechite
Pb(Fe
2+
 
,Mn
2+
 
)[OH|VO
 
4
]
8.BH.40Descloizite
Pb(Zn,Cu)[OH|VO
 
4
]
8.BH.40Mottramite
Pb(Cu,Zn)[OH|VO
 
4
]
8.BH.45Bayldonite
Cu
 
3
Pb[OH|AsO
 
4
]
 
2
8.BH.45Vésigniéite
BaCu
 
3
[OH|VO
 
4
]
 
2
8.BH.50Paganoite
NiBi[O|AsO
 
4
]
8.BH.55Jagowerite
BaAl
 
2
[OH|PO
 
4
]
 
2
8.BH.60Attakolite
(Ca,Sr)Mn(Al,Fe)
 
4
[(OH)
 
4
|(SiO
 
4
,PO
 
4
)|(HPO
 
4
,PO
 
4
)
 
3
]
8.BH.65Leningradite
PbCu
 
3
[Cl|VO
 
4
]
 
2
Related Minerals - Hey's Index Grouping:

- +
21.4.1Uvanite
U
 
2
V
 
6
O
 
21
·15H
 
2
O
21.4.2Vanuranylite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 4H
 
2
O
21.4.3Strelkinite
Na
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
21.4.4Carnotite
K
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3H
 
2
O
21.4.5Margaritasite
(Cs,K,H
 
3
O)
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · H
 
2
O
21.4.6Sengierite
Cu
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
21.4.7Metatyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3-5H
 
2
O
21.4.8Tyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5-8H
 
2
O
21.4.9Rauvite
Ca(UO
 
2
)
 
2
V
 
10
O
 
28
·16H
 
2
O
21.4.10Francevillite
(Ba,Pb)(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
21.4.11Metavanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 8H
 
2
O
21.4.12Vanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 11H
 
2
O
21.4.13Curienite
Pb(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
21.4.14Fritzscheite
Mn(UO
 
2
)
 
2
(PO
 
4
,VO
 
4
)
 
2
·10H
 
2
O (?)
21.4.15Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
[VO
 
4
]
 
3
21.4.16Santafeite
(Ca,Sr,Na)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
 · 8H
 
2
O
21.4.18Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)[OH|(VO
 
4
)
 
2
]
21.4.19Čechite
Pb(Fe
2+
 
,Mn
2+
 
)[OH|VO
 
4
]
21.4.20Heyite
Pb
 
5
Fe
2+
2
[O
 
2
|VO
 
4
]
 
2
21.4.21Mounanaite
PbFe
3+
2
[VO
 
4
]
 
2
 · 2(OH,F)
21.4.22Schubnelite
Fe
 
2-x
V
 
2
O
 
4
(OH)
 
4
21.4.23Fervanite
Fe
 
4
(VO
 
4
)
 
4
·5H
 
2
O
21.4.24Kazakhstanite
Fe
 
5
V
 
3
V
 
12
O
 
39
(OH)
 
9
·9H
 
2
O
21.4.25Bokite
(Al,Fe
3+
 
)
 
1.3
[(V
5+
 
,V
4+
 
,Fe
3+
 
)
 
4
O
 
10
]
 
2
 · 7.5H
 
2
O
21.4.26Rusakovite
(Fe
3+
 
,Al)
 
5
[(OH)
 
9
|(VO
 
4
,PO
 
4
)
 
2
] · 3H
 
2
O
21.4.27Kolovratite
(Zn,Ni,Cu)
 
2-5
Al
 
4-6
(Si,V
4+
 
,V
5+
 
)
 
4
(O,OH)
 
20
·7.5H
 
2
O

Other Names for Pyrobelonite

Other Languages:
German:Pyrobelonit
Russian:Пиробелонит
Spanish:Pyrobelonita

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 Pyrobelonite

Reference List:Flink (1919) Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm: 41: 433.

Larsen, E.S. and Berman, H. (1934) The Microscopic Determination of the Nonopaque Minerals, Second edition, USGS Bulletin 848: 211.

Strunz, H. (1939): Mineralien der Descloizitgruppe. Konichalcit, Staszizit, Austinit, Duftit, Aräoxen, Volborthit, Pyrobelonit. Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig (A) 101, 496-506.

Richmond (1940) American Mineralogist: 25: 460.

American Mineralogist (1955): 40: 580-596.

Mineralogical Magazine (1977): 41: 85.

U. Kolitsch (2001): Refinement of pyrobelonite, PbMnIIVO4(OH), a member of the descloizite group. Acta Crystallogr. E57, i119-i121.

Internet Links for Pyrobelonite

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    Localities for Pyrobelonite

    Hide Locality List
    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.
    (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
     
    • South Australia
      • Eyre peninsula
        • Middleback Range
          • Iron Knob
    		A. Pring, U. Kolitsch and G. Francis (2000): Additions to the mineralogy of the Iron Monarch deposit, Middleback Ranges, South Australia. Australian J. Mineral. 6, 9-23; Pring, A. (1998): Selenides and sulfides from Iron Monarch, South Australia. N. Jb. Mineral. Mh. 1998, 36-48; Pring, A., Francis, G. & Birch, W. D. (1989): Pyrobelonite, arsenoklasite, switzerite and other recent finds at Iron Monarch, South Australia. Australian Mineral. 4, 49-55; Pring, A., Francis, G. & Birch, W. D. (1992): Nissonite, namibite, and other additions to the mineral suite from Iron Monarch, South Australia. Australian Mineral. 6, 31-39; Pring, A., Slade, P. G. & Birch, W. D. (1992): Shigaite from Iron Monarch, South Australia. Mineral. Mag. 56, 417-19; Segnit, E. R. & Francis, G. (1983): Secondary phosphate minerals from Iron Monarch, South Australia. Australian Mineral. 1, 243-50.
    Germany
     
    • Saarland
      • Wadern
        • Krettnich
    		[Eur.J.Mineral. 13:145-158]
    Italy
     
    • Liguria
      • Genova Province
        • Ne
    		[MinRec 32:360]
            • Reppia
    		Bracco, R., Brugger, J., Marchesini, M., Mezzano, I., (2001): Nabiasite: un'altra novità da Gambatesa (Val Graveglia, Genova). Rivista Mineralogica Italiana, 2, 121-122.
      • La Spezia Province
        • Vara Valley
          • Borghetto Vara
    Namibia
     
    • Otjozondjupa Region
      • Grootfontein District
        • Kombat
    		Mineralogical Record: 22: 421.
    Norway
     
    • Vest-Agder
      • Kristiansand
    		Breivik, H. ; Myre, K. & Larsen, A. O. (2007): Manganforekomster på Sørlandet: Kivikdalen (Kostøl, Ålefjær): Bergverksmuseets Skrift nr 35, 25-31
    Sweden
     
    • Värmland
      • Filipstad
    		Torbjorn Lorin
    Geologiska Föeningens I Stockholm. Förhandlinger, Stockholm (1919): 41, 433; Mineralogical Record: 14: 203; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Hinterrhein Valley
        • Ferrera Valley
          • Ausserferrera
    		Amer.Min.(1996) 81, 1270-1276
    • Wallis (Valais)
      • Turtmann Valley
    		The Canadian Mineralogist Vol. 44, pp. 000 (2006) page 205
    UK
     
    • Wales
      • Bridgend (Mid Glamorgan; Glamorgan)
        • Porthcawl
    		Criddle & Symes, 1977
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Dunn, P.J.: Min.Rec.:14:203-204 (1983); Dunn(1995):Pt5:677.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Oct 2009 23:25:21