Ferrobustamite Mineral Data (original) (raw)

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

Click Here for Larger Ferrobustamite Image in a New Browser Window Images:

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:

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

| | 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 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:

65.02.01.03 (65)Inosilicate Single-Width Unbranched Chains, W=1

(65.02)with chains P=3

(65.02.01)Wollastonite group

65.02.01.01a Wollastonite-1A CaSiO3 P1 1

65.02.01.01b Wollastonite-2M* CaSiO3 P 21 2

65.02.01.01c Wollastonite-3A-4A-5A-7A* CaSiO3 P1 1

65.02.01.02 Bustamite (Mn,Ca)3Si3O9 P1 1

65.02.01.03 Ferrobustamite Ca(Fe,Ca,Mn)Si2O6 P1 1

65.02.01.04 Pectolite NaCa2Si3O8(OH) P1 1

65.02.01.05 Serandite Na(Mn,Ca)2Si3O8(OH) P1 1

65.02.01.06 Cascandite Ca(Sc,Fe)Si3O8(OH) C1 1

65.02.01.07 Denisovite (K,Na)Ca2Si3O8(F,OH) Mono

65.02.01.08 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
15 - WWW-MINCRYST

Search for Ferrobustamite using:

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

Visit our Advertisers for Ferrobustamite :

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

Ask about Ferrobustamite 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 Espa�ol

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

Ferrobustamite

Ca(Fe++,Ca,Mn)Si2O6
Dana No: 65.02.01.03 Strunz No: 09.DG.05
Locality:

Notes: