Rosenbuschite Mineral Data

Rosenbuschite Mineral Data
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General Rosenbuschite Information

Help on Chemical Formula: Chemical Formula: (Ca,Na)3(Zr,Ti)Si2O8F
Help on Composition: Composition: Molecular Weight = 390.97 gm
   Sodium      4.41 %  Na    5.94 % Na2O
   Calcium    23.06 %  Ca   32.27 % CaO
   Zirconium  17.50 %  Zr   23.64 % ZrO2
   Titanium    3.06 %  Ti    5.11 % TiO2
   Silicon    14.37 %  Si   30.74 % SiO2
   Oxygen     32.74 %  O
   Fluorine    4.86 %  F     4.86 % F
                -   %   F    -2.05 % -O=F2    
             ______        ______ 
             100.00 %      100.51 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2.25Na0.75Zr0.75Ti0.25Si2O8F
Help on Environment: Environment: In some nepheline syenites and related pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1887
Help on Locality: Locality: From Lille Aro Island and Skudesundskjaer, near Brevik, Langesundsfjord, and Bratthagen, north of Larvik, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Carl Harry F. Rosenbusch (1836-1914), German geologist and mineralogist, Heidelberg, Germany.
Help on Name Pronunciation: Name Pronunciation: Rosenbuschite + Pronunciation Say ROSENBUSCHITE
Help on Synonym: Synonym: ICSD 22334
  PDF 14-447
 

Rosenbuschite Image

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Rosenbuschite

Comments: Tan prismatic crystalline rosenbuschite in schist.
Location: Norra Karr, Jonkoping, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Rosenbuschite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.89:1:0.6467
Help on Cell Dimensions: Cell Dimensions: a = 10.126, b = 11.377, c = 7.358, Z = 4; alpha = 91.3°, beta = 101.15°, gamma = 112.02° V = 770.80 Den(Calc)= 3.37
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.94(1), 3.06(0.8), 1.89(0.6),
Click Here for Large Rosenbuschite Structure Window Crystal Structure:

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Christiansen C C , Johnsen O , Makovicky E , The Canadian Mineralogist , 41 (2003) p.1203-1224, Crystal chemistry of the rosenbuschite group, Sample: LF-A5

 

Physical Properties of Rosenbuschite

Help on Cleavage: Cleavage: {???} Perfect, {???} Distinct
Help on Color: Color: Gray, Orange, Brownish.
Help on Density: Density: 3.3
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Silky
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Rosenbuschite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.054 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2035,KPDmeas= 0.2091,KC= 0.2152
Ncalc = 1.71 - 1.73
Help on Optical Data: Optical Data: Biaxial (+), a=1.678, b=1.687, g=1.705, bire=0.0270
 

Calculated Properties of Rosenbuschite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.20 gm/cc
note: Specific Gravity of Rosenbuschite =3.30 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PERosenbuschite = 27.23 barns/electron
U=PERosenbuschite x rElectron Density= 87.22 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rosenbuschite is Not Radioactive
 

Rosenbuschite Classification
Help on Dana Class: Dana Class: 56.02.04.08 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02)with cations in [4] and/or >[4] coordination
  (56.02.04)Cuspidine - Wohlerite group
 
56.02.04.01 Baghdadite Ca3(Zr,Ti)Si2O9 P 21/a 2/m
 
56.02.04.02 Burpalite Na2CaZrSi2O7F2 P 21/a 2/m
 
56.02.04.03 Cuspidine Ca4Si2O7(F,OH)2 P 21/c 2/m
 
56.02.04.04 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 21/a 2/m
 
56.02.04.05 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 21/m 2/m
 
56.02.04.06 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m
 
56.02.04.07 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1
 
56.02.04.08 Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8F P1 1
 
56.02.04.09 Hainite Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8 P1 1
 
56.02.04.10 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 21/n 2/m
 
56.02.04.11 Jennite Ca9Si6O18(OH)6•8H2O P1 1
 
56.02.04.12 Komarovite (Ca,Mn)2(Nb,Ti)2Si2O7(O,F)2•3.5(H2O) Unk Ortho
 
56.02.04.13 Natrokomarovite* Na6CaNb6[Si4O12F2•4(H2O) C mmm 2/m 2/m 2/m
 
56.02.04.14 Suolunite Ca2Si2O5(OH)2•(H2O) F dd2 mm2
 
56.02.04.15 Mongolite Ca4Nb6Si5O24(OH)10•5(H2O) Unk Tetra
 
56.02.04.16 Kristiansenite! Ca2ScSn(Si2O7)(Si2O6OH) C1 1
 
56.02.04.17 Kochite! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 P1 1
 
56.02.04.18 Marianoite! Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4 P 21 2/m
Help on Strunz Class: Strunz Class: 09.BE.22 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
 
09.BE.22 Hainite Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8 P1 1
 
09.BE.22 Gotzenite (Ca,Na)3(Ti,Al)Si2O7(F,OH)2 P1 1
 
09.BE.22 Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8F P1 1
 
09.BE.22 Kochite! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 P1 1
 

Other Rosenbuschite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Rosenbuschite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - MinMax(Deutsch)
13 - MinMax(English)
14 - Mineralienatlas (Deutsch)
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

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Rosenbuschite

(Ca,Na)3(Zr,Ti)Si2O8F
Dana No: 56.02.04.08 Strunz No: 09.BE.22
Locality:

 

Notes: