Rosemaryite Mineral Data

General Rosemaryite Information

Chemical Formula:

(Na,Ca,Mn++)(Mn++,Fe++)(Fe+++,Fe++,Mg)Al(PO4)3

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

Empirical Formula:

Na_0.6Mn²⁺_0.2Ca_0.2Mn²⁺_0.7Fe²⁺_0.3Fe³⁺_0.9Mg_0.1Al_0.6(PO₄)₃

Environment:

In a zoned, complex granite pegmatite.

IMA Status:

Approved IMA 1978

Locality:

Rock Ridge pegmatite, near Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data.

Name Origin:

Named for F. Rosemay Wyllie wife of Professor Peter J. Wyllie, namesake of wyllieite.

Name Pronunciation:

Rosemaryite + Pronunciation

Search for Rosemaryite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Rosemaryite Crystallography

Axial Ratios:

a:b:c =0.9584:1:0.5131

Cell Dimensions:

a = 11.868, b = 12.382, c = 6.354, Z = 4; beta = 114.52° V = 849.51 Den(Calc)= 3.45

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.674(1), 2.693(1), 6.15(0.6),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Hatert F , Hermann R P , Fransolet A M , Long G J , Grandjean F , European Journal of Mineralogy , 18 (2006) p.775-785, A structural, infrared, and Mossbauer spectral study of rosemaryite, NdMnFe3+Al(PO4)3, Locality: Buranga pegmatite, Rwanda

Physical Properties of Rosemaryite

Cleavage:

{???} Distinct

Color:

Bluish green, Dark green, Deep brown, Reddish brown.

Density:

3.6 - 3.601, Average = 3.6

Diaphaneity:

Transparent to Translucent

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Vitreous - Metallic

Streak:

greenish white

Optical Properties of Rosemaryite

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

Optical Data:

Biaxial (+), a=1.688, b=1.691, g=1.696, bire=0.0080, 2V(Calc)=76, 2V(Meas)=80.

Pleochroism (x):

pale brownish yellow.

Pleochroism (y):

pale brownish yellow.

Pleochroism (z):

pale greenish yellow.

Calculated Properties of Rosemaryite

Electron Density:

Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Rosemaryite =3.45 gm/cc.

Fermion Index:

Fermion Index = 0.0039990059
Boson Index = 0.9960009941

Photoelectric:

PE_Rosemaryite= 8.82 barns/electron
U=PE_Rosemaryite x rElectron Density= 29.52 barns/cc.

Radioactivity:

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

Rosemaryite Classification

Dana Class:

38.02.04.03 (38)Anhydrous Phosphates, etc

(38.02)(A+ B++)5 (XO4)3

(38.02.04)Alluaudite-Wyllieite Group (Wyllieite Subgroup)

38.02.04.01 Ferrowyllieite (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 P 2₁/n 2/m

38.02.04.02 Wyllieite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 2₁/n 2/m

38.02.04.03 Rosemaryite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 2₁/n 2/m

38.02.04.04 Qingheiite Na2(Mn,Mg,Fe)(Al,Fe)(PO4)3 P 2₁/n 2/m

38.02.04.05 Bobfergusonite Na2Mn5FeAl(PO4)6 P 2₁/n 2/m

38.02.04.06 Bradaczekite! NaCu4(AsO4)3 C 2/c 2/m

38.02.04.07 Ferrorosemaryite! []NaFeFeAl(PO4)3 P 2₁/n 2/m

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

References:

NAME( AntBidBlaNic4) PHYS. PROP.(AntBidBlaNic4) OPTIC PROP.(AntBidBlaNic4)

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

Search for Rosemaryite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Rosemaryite :

A Bijoux Google Search for Rosemaryite
Adam's Minerals Google Search for Rosemaryite
Cape Minerals Google Search for Rosemaryite
Dakota Matrix Minerals Google Search for Rosemaryite
Excalibur Mineral Corp. Google Search for Rosemaryite
Exceptional Minerals Google Search for Rosemaryite
John Betts Fine Minerals Search for Rosemaryite
McDougall Minerals Google Search for Rosemaryite
Mineral News Website Link
Rock and Mineral Shows Google Search for Rosemaryite
Weinrich Minerals, Inc. Google Search for Rosemaryite

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

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

Rosemaryite

(Na,Ca,Mn++)(Mn++,Fe++)(Fe+++,Fe++,Mg)Al(PO4)3
Dana No: 38.02.04.03 Strunz No: 08.AC.15
Locality:

Notes: