Oxiberaunite Mineral Data

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General Oxiberaunite Information

Chemical Formula:

(Fe+++,Mn+++)Fe+++5(PO4)4O(OH)4•6(H2O)

Composition:

Molecular Weight = 890.86 gm

Manganese 1.54 % Mn 2.22 % Mn₂O₃

Iron 36.05 % Fe 51.54 % Fe₂O₃

Phosphorus 13.91 % P 31.87 % P₂O₅

Hydrogen 1.81 % H 16.18 % H₂O

Oxygen 46.69 % O

______ ______

100.00 % 101.80 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺_5.75Mn³⁺_0.25(PO₄)₄(OH)₄•6(H₂O)

Environment:

Considered to be a variety of beraunite.

IMA Status:

Not Approved IMA

Locality:

Grube Eleonore, Rodheim-Bieber, Wetzlar, Hessen, Germany. Link to MinDat.org Location Data.

Name Origin:

Named as the higher oxidation state analog of beraunite.

Oxiberaunite Image

Images:

Oxiberaunite

Comments: Red-brown ball of radiating acicular oxiberaunite (eleonorite) microcrystals, on pegmatitic matrix.
Location: LCA Mine, Bessemer City, Gaston County, North Carolina, USA. Scale: Box size 3.18 cm x 3.18 cm.
© Richard Dale / Dale Minerals

Oxiberaunite Crystallography

Crystal System:

Monoclinic

Physical Properties of Oxiberaunite

Cleavage:

{???} Good

Color:

Brown red, Reddish brown.

Hardness:

3.5-4 - Copper Penny-Fluorite

Streak:

brownish red

Optical Properties of Oxiberaunite

Optical Data:

Calculated Properties of Oxiberaunite

Fermion Index:

Fermion Index = 0.0078686113
Boson Index = 0.9921313887

Photoelectric:

PE_Oxiberaunite= 11.73 barns/electron
U=PE_Oxiberaunite x rElectron Density= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Oxiberaunite is Not Radioactive

Oxiberaunite Classification

Dana Class:

37.00.00.00 (37)Phosphate Minerals

(37.00)Without Dana Classification Numbers

(37.00.00)Phosphate, Basic Hydrated

37.00.00.00 Arnhemite* (K,Na)2Mg2(P2O7)•5(H2O) Unk Hex

37.00.00.00 Arsenowaylandite* BiAl3(AsO4)2(OH)6 R 3m 3 2/m

37.00.00.00 Auroantimonate* AuSbO3 Ortho ? Ortho

37.00.00.00 Barium-zinc-alumopharmacosiderite* (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O) I 42m 4 2m

37.00.00.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 4₁/amd 4/m 2/m 2/m

37.00.00.00 Churchite-(Dy)* (Dy,Sm,Gd,Nd)(PO4)•2(H2O) Mono

37.00.00.00 Gengenbachite KFe3(H2PO4)2(HPO4)4•6H2OorKFe3H8(PO4)6•6H2O P 6₃mc 6mm

37.00.00.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m

37.00.00.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 6₃/m 6/m 2/m 2/m

37.00.00.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1

37.00.00.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m

37.00.00.00 Krasnoselskite* CoWO4 P 2/c 2/m

37.00.00.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho

37.00.00.00 Oxiberaunite* (Fe,Mn)Fe5(PO4)4O(OH)4•6(H2O) Mono

37.00.00.00 Parwanite (Na,K)(Mg,Ca)4Al8(PO4)8(CO3)(OH)7•30H2O P 2, Pm, P 2/m, P 2₁, Mono

37.00.00.00 Pyrocoproite* (Mg(K,Na))2P2O7 Unk Mono

37.00.00.00 Pyrophosphite* K2CaP2O7 P 2₁/n 2/m

37.00.00.00 Zinclavendulan? NaCa(Zn,Cu)5(AsO4)4Cl•4-5(H2O) Unk Ortho

Strunz Class:

08.DC.207. 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1

08.DC.207. Oxiberaunite* (Fe,Mn)Fe5(PO4)4O(OH)4•6(H2O) Mono

Other Oxiberaunite Information

See Also:

Links to other databases for Oxiberaunite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

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Ask about Oxiberaunite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Oxiberaunite Specimen Label here :

Oxiberaunite

(Fe+++,Mn+++)Fe+++5(PO4)4O(OH)4•6(H2O)
Dana No: 37.00.00.00 Strunz No: 08.DC.207.
Locality:

Notes: