Ferrobustamite Mineral Data + Say FERROBUSTAMITE


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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 Synonym: Synonym: ICSD 9297
  Iron wollastonite
  PDF 29-336
 

Ferrobustamite Image

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Ferrobustamite

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 - PinacoidalH-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),
Click Here for Large Ferrobustamite Structure Window Crystal Structure:

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Yamanaka T , Sadanaga R , Takeuchi Y , American Mineralogist , 62 (1977) p.1216-1224, Structural variation in the ferrobustamite solid solution, Wo82Fs18, Note: the sample is from the Ofuku mine, Yamaguchi Prefecture, Japan

 

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 Diaphaniety: Diaphaniety: 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
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:

relectron=3.08 gm/cc
note: rFerrobustamite =3.10 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01299
Boson Index = 0.98701
Help on Photoelectric: Photoelectric:

PEFerrobustamite = 6.73 barns/electron
U=PEFerrobustamite x relectron= 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: 65.2.1.3 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.2)with chains P=3
  (65.2.1)Wollastonite group
 
65.2.1.1a Wollastonite-1A CaSiO3 P1 1
 
65.2.1.1b Wollastonite-2M* CaSiO3 P 21 2
 
65.2.1.1c Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1
 
65.2.1.2 Bustamite (Mn,Ca)3Si3O9 P1 1
 
65.2.1.3 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1
 
65.2.1.4 Pectolite NaCa2Si3O8(OH) P1 1
 
65.2.1.5 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1
 
65.2.1.6 Cascandite Ca(Sc,Fe)Si3O8(OH) C1 1
 
65.2.1.7 Denisovite (K,Na)Ca2Si3O8(F,OH) Mono
Help on  Strunz Class: Strunz Class: VIII/F.18-30 VIII - Silicates
  VIII/F - Inosilicates (chain and band) Triplet chains [Si3O9]6-
  VIII/F.18 - Wollastonite-2M - Foshagite series
 
VIII/F.18-10 Wollastonite-1A CaSiO3 P1 1
 
VIII/F.18-10* Wollastonite-2M* CaSiO3 P 21 2
 
VIII/F.18-10** Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1
 
VIII/F.18-30 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1
 
VIII/F.18-40 Bustamite (Mn,Ca)3Si3O9 P1 1
 
VIII/F.18-50 Cascandite Ca(Sc,Fe)Si3O8(OH) C1 1
 
VIII/F.18-60 Pectolite NaCa2Si3O8(OH) P1 1
 
VIII/F.18-70 Denisovite (K,Na)Ca2Si3O8(F,OH) Mono
 
VIII/F.18-80 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1
 
VIII/F.18-90 Foshagite Ca4Si3O9(OH)2 P 21/m 2/m
 
VIII/F.18-100 Hillebrandite Ca6Si3O9(OH)6 C mc21 mm2
 

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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Ferrobustamite

Ca(Fe++,Ca,Mn)Si2O6
Dana No: 65.2.1.3 Strunz No: VIII/F.18-30
Locality:

 

Notes:

 

 
   
 
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