Mineralogy Database

Rosemaryite Mineral Data

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General Rosemaryite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca,Mn++)(Mn++,Fe++)(Fe+++,Fe++,Mg)Al(PO4)3
Help on Composition: Composition: Molecular Weight = 441.80 gm
   Sodium       3.12 %  Na    4.21 % Na2O
   Calcium      1.81 %  Ca    2.54 % CaO
   Magnesium    0.55 %  Mg    0.91 % MgO
   Manganese   11.19 %  Mn   14.45 % MnO
   Aluminum     3.66 %  Al    6.92 % Al2O3
   Iron        15.17 %  Fe    4.88 % FeO / 16.27 % Fe2O3
   Phosphorus  21.03 %  P    48.19 % P2O5
   Oxygen      43.46 %  O
              ______        ______ 
              100.00 %       98.37 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.6Mn2+0.2Ca0.2Mn2+0.7Fe2+0.3Fe3+0.9Mg0.1Al0.6(PO4)3
Help on Environment: Environment: In a zoned, complex granite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Rock Ridge pegmatite, near Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for F. Rosemay Wyllie wife of Professor Peter J. Wyllie, namesake of wyllieite.
Help on Name Pronunciation: Name Pronunciation: Rosemaryite + Pronunciation Say ROSEMARYITE

Rosemaryite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9584:1:0.5131
Help on Cell Dimensions: Cell Dimensions: a = 11.868, b = 12.382, c = 6.354, Z = 4; beta = 114.52° V = 849.51 Den(Calc)= 3.45
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): 2.674(1), 2.693(1), 6.15(0.6),

Physical Properties of Rosemaryite

Help on Cleavage: Cleavage: {???} Distinct
Help on Color: Color: Bluish green, Dark green, Deep brown, Reddish brown.
Help on Density: Density: 3.6 - 3.601, Average = 3.6
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous - Metallic
Help on Streak: Streak: greenish white

Optical Properties of Rosemaryite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.029 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2005,KPDmeas= 0.1921,KC= 0.2066
Ncalc = 1.71 - 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.688, b=1.691, g=1.696, bire=0.0080, 2V(Calc)=76, 2V(Meas)=80.
Help on Pleochroism (x): Pleochroism (x): pale brownish yellow.
Help on Pleochroism (y): Pleochroism (y): pale brownish yellow.
Help on Pleochroism (z): Pleochroism (z): pale greenish yellow.

Calculated Properties of Rosemaryite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Rosemaryite =3.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0039990059
Boson Index = 0.9960009941
Help on Photoelectric: Photoelectric: PERosemaryite = 8.82 barns/electron
U=PERosemaryite x rElectron Density= 29.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rosemaryite is Not Radioactive

Rosemaryite 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 Rosemaryite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(AntBidBlaNic4) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: See Also: Links to other databases for Rosemaryite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.AC.15





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