Mineralogy Database

Ferrobustamite Mineral Data

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General Ferrobustamite Information

Help on Chemical  Formula: Chemical Formula: Ca(Fe++,Ca,Mn)Si2O6
Help on Composition: Composition: Molecular Weight = 239.80 gm
   Calcium    28.41 %  Ca   39.75 % CaO
   Manganese   1.15 %  Mn    1.48 % MnO
   Iron        6.99 %  Fe    8.99 % FeO
   Silicon    23.42 %  Si   50.11 % SiO2
   Oxygen     40.03 %  O
             ______        ______ 
             100.00 %      100.33 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.7Fe2+0.3Mn2+0.05Si2O6
Help on Environment: Environment: Surrounding chert nodules in a skarn in dolostone (Isle of Skye, Scotland).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1937
Help on Locality: Locality: At Camas Malag, Isle of Skye, Scotland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For FERROan iron in its composition and its relation to bustamite.
Help on Name Pronunciation: Name Pronunciation: Ferrobustamite + Pronunciation Say FERROBUSTAMITE
Help on Synonym: Synonym: ICSD 9297
  Iron wollastonite
  PDF 29-336

Ferrobustamite Image

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Comments: Grayish crystalline ferrobustamite with white calcite, golden colored phlogopite and green actinolite.
Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrobustamite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0839:1:1.9256
Help on Cell Dimensions: Cell Dimensions: a = 7.862, b = 7.253, c = 13.967, Z = 6; alpha = 89.44°, beta = 95.28°, gamma = 103.29° V = 771.79 Den(Calc)= 3.10
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.27(1), 3.049(0.8), 2.278(0.65),

Physical Properties of Ferrobustamite

Help on Cleavage: Cleavage: {100} Perfect, {001} Good, {102} Good
Help on Color: Color: Green.
Help on Density: Density: 3.09
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: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Ferrobustamite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2085,KPDmeas= 0.2092,KC= 0.2075
Ncalc = 1.64
Help on Optical Data: Optical Data: Biaxial (-), a=1.64, g=1.653, bire=0.0130, 2V(Meas)=60.

Calculated Properties of Ferrobustamite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.08 gm/cc
note: Specific Gravity of Ferrobustamite =3.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerrobustamite = 6.73 barns/electron
U=PEFerrobustamite x rElectron Density= 20.71 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrobustamite is Not Radioactive

Ferrobustamite Classification

Help on  Dana Class: Dana Class: (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.02)with chains P=3
  (65.02.01)Wollastonite group Wollastonite-1A CaSiO3 P1 1 Wollastonite-2M* CaSiO3 P 21 2 Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1 Bustamite (Mn,Ca)3Si3O9 P1 1 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1 Pectolite NaCa2Si3O8(OH) P1 1 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1 Cascandite Ca(Sc,Fe)Si3O8(OH) C1 1 Denisovite (K,Na)Ca2Si3O8(F,OH) Mono Tanohataite! LiMn2Si3O8(OH) P1 1
Help on  Strunz Class: Strunz Class: 09.DG.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DG -Inosilicates with 3-periodic single and multiple chains
09.DG.05 Bustamite (Mn,Ca)3Si3O9 P1 1
09.DG.05 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1
09.DG.05 Pectolite NaCa2Si3O8(OH) P1 1
09.DG.05 Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1
09.DG.05 Wollastonite-1A CaSiO3 P1 1
09.DG.05 Wollastonite-2M* CaSiO3 P 21 2
09.DG.05 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1

Other Ferrobustamite 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 Ferrobustamite :
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: 09.DG.05





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