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Ferrorosemaryite Mineral Data

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General Ferrorosemaryite Information

Help on Chemical  Formula: Chemical Formula: [ ]NaFe++Fe+++Al(PO4)3
Help on Composition: Composition: Molecular Weight = 454.58 gm
   Sodium       2.12 %  Na    2.86 % Na2O
   Calcium      0.35 %  Ca    0.49 % CaO
   Magnesium    0.11 %  Mg    0.18 % MgO
   Manganese    6.28 %  Mn    8.11 % MnO
   Aluminum     4.87 %  Al    9.20 % Al2O3
   Iron        23.59 %  Fe   11.22 % FeO / 21.25 % Fe2O3
   Phosphorus  20.44 %  P    46.84 % P2O5
   Oxygen      42.24 %  O
              ______        ______ 
              100.00 %      100.16 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.42Mn2+0.28Ca0.04Fe2+0.71Mn2+0.24Fe3+0.05Fe3+Al0.82Fe3+0.16Mg0.02(PO4)3
Help on Environment: Environment: Found in embedded in scorzalite from cotan-bearing pegmatites that cut across dark-gray schists and quartzites of the Mesoproterozoic Kibuye formation. Wyllieite group.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Rubindi-Kabilizi pegmatite, located 3 km WNW of Muhororo village, south of the Rubindi river, 50 km west of Kigali, Rwanda. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Fe-dominant analogue of rosemaryite.
Help on Synonym: Synonym: IMA2003-063

Ferrorosemaryite Image

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Comments: B&W PPL image of idiomorphic, semi-opague grains of ferrorosemaryite in white scorzalite. (Eur J Mineralogy, v17:749.
Location: Rubindi pegmatite, Rwanda. Scale: See Image.
© Eur. J. Mineral

Ferrorosemaryite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9587:1:0.51
Help on Cell Dimensions: Cell Dimensions: a = 11.838, b = 12.347, c = 6.2973, Z = 4; beta = 114.353° V = 838.54 Den(Calc)= 3.60
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.677(1)(240 ), 2.693(0.75)(400 ), 3.448(0.65)(310 ),6.167(0.5)(020 ), 4.054(0.45)(220 ), 3.011(0.4)(112 ), 5.382(0.4)(200 ), 8.102(0.3)(110 ), 2.468(0.2)(420 ),

Physical Properties of Ferrorosemaryite

Help on Cleavage: Cleavage: {010} Perfect, {101} Good
Help on Color: Color: Dark green, Bronze.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Resinous
Help on Streak: Streak: greenish brown

Optical Properties of Ferrorosemaryite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2095,KC= 0.2156
Ncalc = 1.78
Help on Optical Data: Optical Data: Biaxial (-), a=1.73, b=1.758, g=1.775, bire=0.0450, 2V(Calc)=74, 2V(Meas)=82. Dispersion strong, r < v.

Calculated Properties of Ferrorosemaryite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.49 gm/cc
note: Specific Gravity of Ferrorosemaryite =3.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0053151001
Boson Index = 0.9946848999
Help on Photoelectric: Photoelectric: PEFerrorosemaryite = 9.89 barns/electron
U=PEFerrorosemaryite x rElectron Density= 34.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrorosemaryite is Not Radioactive

Ferrorosemaryite Classification

Help on  Dana Class: Dana Class: (38)Anhydrous Phosphates, etc
  (38.02)(A+ B++)5 (XO4)3
  (38.02.04)Alluaudite-Wyllieite Group (Wyllieite Subgroup) Ferrowyllieite (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m Wyllieite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m Rosemaryite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m Qingheiite Na2(Mn,Mg,Fe)(Al,Fe)(PO4)3 P 21/n 2/m Bobfergusonite Na2Mn5FeAl(PO4)6 P 21/n 2/m Bradaczekite! NaCu4(AsO4)3 C 2/c 2/m Ferrorosemaryite! []NaFeFeAl(PO4)3 P 21/n 2/m
Help on  Strunz Class: Strunz Class: 08.AC.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
08.AC.15 Bobfergusonite Na2Mn5FeAl(PO4)6 P 21/n 2/m
08.AC.15 Ferrowyllieite (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
08.AC.15 Qingheiite Na2(Mn,Mg,Fe)(Al,Fe)(PO4)3 P 21/n 2/m
08.AC.15 Rosemaryite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
08.AC.15 Wyllieite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
08.AC.15 Ferrorosemaryite! []NaFeFeAl(PO4)3 P 21/n 2/m

Other Ferrorosemaryite Information

Help on References: References: NAME( AmMin, v91, p1203) PHYS. PROP.(AmMin, v91, p1203) OPTIC PROP.(AmMin, v91, p1203)
Help on See Also: See Also: Links to other databases for Ferrorosemaryite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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


[ ]NaFe++Fe+++Al(PO4)3
Dana No: Strunz No: 08.AC.15





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