Ferrobustamite Mineral Data

Advertisment

A Bijoux.com is an online store specialized in the sale on the internet of precious stones , gems , minerals and jewels for individuals and professionals

Our Mission is Simple: RMS will be the go-to portal for all mineral, gem and rock shows in the USA

Your premier supplier of quality mineral specimens from Southern Africa and the world at large

General Ferrobustamite Information

Chemical Formula:

Ca(Fe++,Ca,Mn)Si2O6

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

Empirical Formula:

Ca_1.7Fe²⁺_0.3Mn²⁺_0.05Si₂O₆

Environment:

Surrounding chert nodules in a skarn in dolostone (Isle of Skye, Scotland).

IMA Status:

Valid Species (Pre-IMA) 1937

Locality:

At Camas Malag, Isle of Skye, Scotland. Link to MinDat.org Location Data.

Name Origin:

For FERROan iron in its composition and its relation to bustamite.

Name Pronunciation:

Ferrobustamite + Pronunciation

Synonym:

ICSD 9297

Iron wollastonite

PDF 29-336

Ferrobustamite Image

Images:

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

Axial Ratios:

a:b:c =1.0839:1:1.9256

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

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.27(1), 3.049(0.8), 2.278(0.65),

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

Cleavage:

{100} Perfect, {001} Good, {102} Good

Color:

Green.

Density:

3.09

Diaphaneity:

Transparent to Translucent

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Ferrobustamite

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

Optical Data:

Biaxial (-), a=1.64, g=1.653, bire=0.0130, 2V(Meas)=60.

Calculated Properties of Ferrobustamite

Electron Density:

Bulk Density (Electron Density)=3.08 gm/cc
note: Specific Gravity of Ferrobustamite =3.10 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Ferrobustamite}= 6.73 barns/electron
U=PE_{Ferrobustamite} x rElectron Density= 20.71 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrobustamite is Not Radioactive

Ferrobustamite Classification

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

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

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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 Español

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: