Franklinfurnaceite Mineral Data

Franklinfurnaceite Mineral Data +

[Newest Minerals] [Rare Minerals] [Past Sale Items] [About Us] [A-Rocks Auctions]
T G Fine Minerals sells Australian Minerals from all the classic and current localities
We are one the most comprehensive sellers of these (Aussie) minerals in the world
Broken Hill specimens are our specialty along with fine worldwide minerals, Australian opals, fossils & gems

General Franklinfurnaceite Information

Chemical Formula:

Ca2(Fe+++,Al)Mn+++Mn++3Zn2Si2O10(OH)8

Composition:

Molecular Weight = 831.54 gm

Calcium 9.64 % Ca 13.49 % CaO

Manganese 26.43 % Mn 25.59 % MnO / 9.49 % Mn₂O₃

Aluminum 0.81 % Al 1.53 % Al₂O₃

Zinc 15.73 % Zn 19.58 % ZnO

Iron 5.04 % Fe 7.20 % Fe₂O₃

Silicon 6.76 % Si 14.45 % SiO₂

Hydrogen 0.97 % H 8.67 % H₂O

Oxygen 34.63 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂Fe³⁺_0.75Al_0.25Mn³⁺Mn²⁺₃Zn₂Si₂O₁₀(OH)₈

IMA Status:

Approved IMA 1987

Locality:

Link to MinDat.org Location Data.

Search for Franklinfurnaceite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Franklinfurnaceite Crystallography

Axial Ratios:

a:b:c =0.5839:1:1.5452

Cell Dimensions:

a = 5.483, b = 9.39, c = 14.51, Z = 2; beta = 97.04° V = 741.42 Den(Calc)= 3.72

Crystal System:

Monoclinic - SphenoidalH-M Symbol (2) Space Group: C 2

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

By Intensity(I/I_o): 2.305(1), 2.707(0.8), 2.602(0.7),

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

Peacor D R , Rouse R C , Bailey S W , American Mineralogist , 73 (1988) p.876-887, Crystal structure of franklinfurnaceite: A tri-dioctahedral zincosilicate, intermediate between chlorite and mica

Physical Properties of Franklinfurnaceite

Cleavage:

[???] Perfect

Color:

Dark brown.

Density:

3.66

Diaphaniety:

Translucent

Hardness:

3 - Calcite

Luster:

Vitreous (Glassy)

Streak:

brown

Optical Properties of Franklinfurnaceite

Optical Data:

Biaxial (-), a=1.792, b=1.798, g=1.802, bire=0.0100, 2V(Calc)=78, 2V(Meas)=79.

Calculated Properties of Franklinfurnaceite

Electron Density:

r_electron=3.60 gm/cc
note: r_{Franklinfurnaceite}=3.72 gm/cc.

Fermion Index

Fermion Index = 0.01096
Boson Index = 0.98904

Photoelectric:

PE_{Franklinfurnaceite}= 17.54 barns/electron
U=PE_{Franklinfurnaceite} x r_electron= 63.22 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Franklinfurnaceite is Not Radioactive

Franklinfurnaceite Classification

Dana Class:

71.4.3.1 (71)Phyllosilicate Sheets of Six-Membered Rings

(71.4)interlayered 1:1, 2:1, and octahedra

(71.4.3)Dana Group

71.4.3.1 Franklinfurnaceite Ca2(Fe,Al)MnMn3Zn2Si2O10(OH)8 C 2 2

Strunz Class:

VIII/H.23-110 VIII - Silicates

VIII/H - Phyllosilicates (layered) Mica like with [Si4O10]4- and related groups

VIII/H.23 - Chlorite group

VIII/H.23-10 Sudoite Mg2(Al,Fe)3Si3AlO10(OH)8 C 2/m 2/m

VIII/H.23-20 Clinochlore (Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-30 Chamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C 2/m 2/m

VIII/H.23-40 Orthochamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C3m-pseudoHEX Ortho

VIII/H.23-50 Baileychlore (Zn,Al,[])3[Fe2Al][Si3AlO10](OH)8 C1,C1 Tri

VIII/H.23-60 Pennantite Mn5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-70 Nimite (Ni,Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

VIII/H.23-80 Gonyerite Mn3[Mn3Fe][(Si,Fe)4O10](OH,O)8 pseudo-HEX Ortho

VIII/H.23-90 Cookeite LiAl4(Si3Al)O10(OH)8 P 2₁/a 2/m

VIII/H.23-95 Borocookeite! Li(13x)Al(4-x)(BSi3)O10(OH,F)8[x=0-0.33] pseudo C 2/m 2/m

VIII/H.23-100 Manandonite Li2Al4[(Si2AlB)O10](OH)8 C1 1

VIII/H.23-110 Franklinfurnaceite Ca2(Fe,Al)MnMn3Zn2Si2O10(OH)8 C 2 2

Other Franklinfurnaceite Information

References:

PHYS. PROP.(Am.Min.,Vol.72,p812-815,1987) OPTIC PROP.(Am.Min.,Vol.72,p812-815,1987)

Search for Franklinfurnaceite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Franklinfurnaceite :

AA Mineral Specimens

B & L Fine Minerals

Crystal Vaults

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

MineralsWeb Fine Minerals

Rockshop.cz

T G Fine Minerals

Wrights Rock Shop

Translate Franklinfurnaceite Mineral Data :

Ask about Franklinfurnaceite 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 Franklinfurnaceite Specimen Label here :

Franklinfurnaceite

Ca2(Fe+++,Al)Mn+++Mn++3Zn2Si2O10(OH)8
Dana No: 71.4.3.1 Strunz No: VIII/H.23-110
Locality:

Notes: