Franklinfurnaceite Mineral Data

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

Environment:

A late-stage mineral in vugs in a metamorphosed stratiform zinc deposit.

IMA Status:

Approved IMA 1987

Locality:

Franklin Furnace, the former name for Franklin, New Jersey, USA. Link to MinDat.org Location Data.

Name Origin:

Named after the locality.

Name Pronunciation:

Franklinfurnaceite + Pronunciation

Franklinfurnaceite Image

Images:

Franklinfurnaceite

Comments: Brown resinous mass of franklinfurnaceite, in black franklinite, with white calcite.
Location: Franklin Mine, Franklin, Sussex Co., New Jersey, USA. Scale: Picture Size 6 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Diaphaneity:

Translucent

Hardness:

3 - Calcite

Luster:

Vitreous (Glassy)

Streak:

brown

Optical Properties of Franklinfurnaceite

Gladstone-Dale:

CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.041 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2143,KPDmeas= 0.2179,KC= 0.2236
Ncalc = 1.82 - 1.83

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:

Bulk Density (Electron Density)=3.55 gm/cc
note: Specific Gravity of Franklinfurnaceite =3.66 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Franklinfurnaceite}= 17.54 barns/electron
U=PE_{Franklinfurnaceite} x rElectron Density= 62.20 barns/cc.

Radioactivity:

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

Franklinfurnaceite Classification

Dana Class:

71.04.03.01 (71)Phyllosilicate Sheets of Six-Membered Rings

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

(71.04.03)Dana Group

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

Strunz Class:

09.EC.55 09 - SILICATES (Germanates)

09.E - Phyllosilicates

09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets

09.EC.55 Donbassite Al2[Al2.33][Si3AlO10](OH)8 C 2/m 2/m

09.EC.55 Baileychlore (Zn,Al,[])3[Fe2Al][Si3AlO10](OH)8 C1,C1 Tri

09.EC.55 Clinochlore (Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

09.EC.55 Cookeite LiAl4(Si3Al)O10(OH)8 P 2₁/a 2/m

09.EC.55 Chamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C 2/m 2/m

09.EC.55 Franklinfurnaceite Ca2(Fe,Al)MnMn3Zn2Si2O10(OH)8 C 2 2

09.EC.55 Nimite (Ni,Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

09.EC.55 Gonyerite Mn3[Mn3Fe][(Si,Fe)4O10](OH,O)8 pseudo-HEX Ortho

09.EC.55 Odinite (Fe,Mg,Al,Fe,Ti,Mn)2.5(Si,Al)2O5(OH)4 Cm m

09.EC.55 Orthochamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C3m-pseudoHEX Ortho

09.EC.55 Pennantite Mn5Al(Si3Al)O10(OH)8 C 2/m 2/m

09.EC.55 Sudoite Mg2(Al,Fe)3Si3AlO10(OH)8 C 2/m 2/m

09.EC.55 Glagolevite! NaMg6[Si3AlO10](OH,O)8•H2O C1 1

09.EC.55 Borocookeite! Li(13x)Al(4-x)(BSi3)O10(OH,F)8[x=0-0.33] pseudo C 2/m 2/m

Other Franklinfurnaceite Information

References:

NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.72,p812-815,1987) OPTIC PROP.(Am.Min.,Vol.72,p812-815,1987)

See Also:

Links to other databases for Franklinfurnaceite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

Search for Franklinfurnaceite using:

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

Visit our Advertisers for Franklinfurnaceite :

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

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: 71.04.03.01 Strunz No: 09.EC.55
Locality:

Notes: