Mineralogy Database

Bonshtedtite Mineral Data

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General Bonshtedtite Information

Help on Chemical  Formula: Chemical Formula: Na3Fe++(PO4)(CO3)
Help on Composition: Composition: Molecular Weight = 279.80 gm
   Sodium      24.65 %  Na   33.23 % Na2O
   Iron        19.96 %  Fe   25.68 % FeO
   Phosphorus  11.07 %  P    25.37 % P2O5
   Carbon       4.29 %  C    15.73 % CO2
   Oxygen      40.03 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3Fe2+(PO4)(CO3)
Help on Environment: Environment: In veinlets associated with alkai-carbonate metasomatism of alkalic massifs.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Found in drill core from the Vuonnemiok River Valley, and on Mts. Suoluaiv, Kukisvumchorr, Partomchorr, and Rest'yun, Khibiny massif, also in drill core from the Kovdor massif, Kola Pe Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: To honor Elsa Maksimilianovna Bonshtedt-Kupletskaya (1897-1974), Russian specialist in mineralogy of alkalic massifs.
Help on Name Pronunciation: Name Pronunciation: Bonshtedtite + Pronunciation Say BONSHTEDTITE
Help on Synonym: Synonym: ICSD 77053
  PDF 35-678

Bonshtedtite Image

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Comments: Oriented gray bands of bonshtedtite in calcite.
Location: Kovdor Massif, Kola Peninsula. Scale: 3.9x2.3x1.5 cm.
© Richard Dale / Dale Minerals

Bonshtedtite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3453:1:0.7768
Help on Cell Dimensions: Cell Dimensions: a = 8.921, b = 6.631, c = 5.151, Z = 2; beta = 90.417° V = 304.70 Den(Calc)= 3.05
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.318(1), 2.662(0.3), 8.923(0.2),

Physical Properties of Bonshtedtite

Help on Cleavage: Cleavage: {010} Perfect, {100} Perfect
Help on Color: Color: Colorless, Rose, Yellowish, Greenish.
Help on Density: Density: 2.95 - 3.16, Average = 3.05
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Bonshtedtite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.041 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.039 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1835,KPDmeas= 0.1832,KC= 0.191
Ncalc = 1.56 - 1.6
Help on Optical Data: Optical Data: Biaxial (-), a=1.52, b=1.568, g=1.591, bire=0.0710, 2V(Calc)=66, 2V(Meas)=68.

Calculated Properties of Bonshtedtite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Bonshtedtite =3.05 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.004895821
Boson Index = 0.995104179
Help on Photoelectric: Photoelectric: PEBonshtedtite = 6.94 barns/electron
U=PEBonshtedtite x rElectron Density= 20.57 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bonshtedtite is Not Radioactive

Bonshtedtite Classification

Help on  Dana Class: Dana Class: (43)Compound Phosphates, etc.
  (43.02)(Anhydrous Normal Compound Anions)
  (43.02.01)Bradleyite Group Bradleyite Na3Mg(PO4)(CO3) P 21/m 2/m Sidorenkite Na3Mn(PO4)(CO3) P 21/m 2/m Bonshtedtite Na3Fe(PO4)(CO3) P 21/m 2/m Crawfordite Na3Sr(PO4)(CO3) P 21 2
Help on  Strunz Class: Strunz Class: 05.BF.10 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BF -With (Cl), SO4, PO4, TeO3
05.BF.10 Bonshtedtite Na3Fe(PO4)(CO3) P 21/m 2/m
05.BF.10 Crawfordite Na3Sr(PO4)(CO3) P 21 2
05.BF.10 Bradleyite Na3Mg(PO4)(CO3) P 21/m 2/m
05.BF.10 Sidorenkite Na3Mn(PO4)(CO3) P 21/m 2/m

Other Bonshtedtite Information

Help on References: References: NAME( AntBidBlaNic4) 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 Bonshtedtite :
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 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 05.BF.10





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