Fluoro-ferroleakeite Mineral Data
General Fluoro-ferroleakeite Information
Chemical Formula:
NaNa2(Fe++2Fe+++2Li)Si8O22F2
Composition:
Molecular Weight = 913.97 gm
Sodium 7.55 % Na 10.17 % Na2 O
Lithium 0.76 % Li 1.63 % Li2 O
Iron 24.44 % Fe 15.72 % FeO / 17.47 % Fe2 O3
Silicon 24.58 % Si 52.59 % SiO2
Oxygen 38.51 % O
Fluorine 4.16 % F 4.16 % F
- %
F -1.75 % -O=F2
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na3 Fe2+ 2 Fe3+ 2 Li(Si8 O22 )F2
Environment:
Mildly perialkaline porphyry.
IMA Status:
Approved IMA 1996
Locality:
The Canada Pinabete pluton, Wuesta, New Mexico, USA. Link to MinDat.org Location Data.
Name Origin:
Named after its composition containing fluorine and iron and with the mineral leakeite.
Synonym:
IMA1993-026
Fluoro-ferroleakeite Image
Images:
Fluoro-ferroleakeite
Comments: Euhedral crystal of dark green fluoro-ferroleakeite with a lighter green aegirine rim in an agpaitic rare metal granite. Associated mineral is orange magmatic calcian elpidite with white albite.
Location: Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia.
Scale: FOV is 12x10 mm.
© Pavel M. Kartashov
Images:
Fluoro-ferroleakeite
Comments: Heavy mineral concentrate of dark blue to black fluoro-ferroleakeite grains, co-type sample.
Location: Questa, Taos County, New Mexico, USA.
Scale: See Image.
© Rruff Database
Fluoro-ferroleakeite Crystallography
Axial Ratios:
a:b:c =0.5458:1:0.2962
Cell Dimensions:
a = 9.792, b = 17.938, c = 5.3133, Z = 2; beta = 103.867° V = 906.07 Den(Calc)= 3.35
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
X Ray Diffraction:
By Intensity(I/Io ): 2.71(1), 2.536(0.92), 3.404(0.57),
Physical Properties of Fluoro-ferroleakeite
Cleavage:
{110} Perfect
Color:
Bluish black, Black.
Density:
3.37
Diaphaneity:
Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Anhedral Grains - Granular minerals without the expression of crystal shapes
Habit:
Tabular - Form dimensions are thin in one direction.
Hardness:
6 - Orthoclase
Luster:
Vitreous (Glassy)
Streak:
bluish gray
Optical Properties of Fluoro-ferroleakeite
Gladstone-Dale:
CI meas = 0.079 (Fair) - where the CI = (1-KPDmeas /KC ) CI calc = 0.073 (Fair) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2042,KPDmeas = 0.203,KC = 0.2203 Ncalc = 1.74
Optical Data:
Biaxial (-), a=1.675, b=1.683, g=1.694, bire=0.0190, 2V(Calc)=82, 2V(Meas)=87. Dispersion not discernible.
Calculated Properties of Fluoro-ferroleakeite
Electron Density:
Bulk Density (Electron Density)=3.27 gm/cc note: Specific Gravity of Fluoro-ferroleakeite =3.35 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEFluoro-ferroleakeite = 8.38 barns/electronU=PEFluoro-ferroleakeite x r Electron Density= 27.41 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Fluoro-ferroleakeite is Not Radioactive
Fluoro-ferroleakeite Classification
Dana Class:
66.01.03c.15 (66) Inosilicate Double-Width Unbranched Chains, W=2
(66.01) with P=2 amphibole configuration
(66.01.03c) Group 4, the sodic amphiboles
66.01.03c.01 Glaucophane []Na2(Mg3Al2)Si8O22(OH)2 C 2/m 2/m
66.01.03c.02 Ferroglaucophane []Na2(Fe3Al2)Si8O22(OH)2 C 2/m 2/m
66.01.03c.03 Crossite ? Na2(Mg,Fe)3(Al,Fe)2Si8O22(OH)2 C 2/m 2/m
66.01.03c.04 Magnesioriebeckite []Na2[(Mg,Fe)3Fe2]Si8O22(OH)2 C 2/m 2/m
66.01.03c.05 Riebeckite []Na2(Fe3Fe2)Si8O22(OH)2 C 2/m 2/m
66.01.03c.06 Eckermannite NaNa2(Mg4Al)Si8O22(OH)2 C 2/m 2/m
66.01.03c.07 Ferro-eckermannite NaNa2(Fe4Al)Si8O22(OH)2 C 2/m 2/m
66.01.03c.08 Magnesio-arfvedsonite NaNa2(Mg4Fe)Si8O22(OH)2 C 2/m 2/m
66.01.03c.09 Arfvedsonite NaNa2(Fe4Fe)Si8O22(OH)2 C 2/m 2/m
66.01.03c.09a Fluoro-magnesio-arfvedsonite ! NaNa2(Mg,Fe)4Fe[Si8O22](F,OH)2 C 2/m 2/m
66.01.03c.09b Potassicarfvedsonite ! KNa2Fe4FeSi8O22(OH)2 C 2/m 2/m
66.01.03c.10 Kozulite NaNa2Mn4(Fe,Al)Si8O22(OH)2 C 2/m 2/m
66.01.03c.11 Nyboite NaNa2(Mg3Al2)Si7AlO22(OH)2 C 2/m 2/m
66.01.03c.11a Ferronyboite ! NaNa2(Fe)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03c.11b Ferric-ferronyboite ! NaNa2(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03c.11c Fluoronyboite ! NaNa2(Al2Mg3)(Si7Al)O22(F,OH)2 C 2/m 2/m
66.01.03c.12 Leakeite NaNa2(Mg2Fe2Li)Si8O22(OH)2 C 2/m 2/m
66.01.03c.12a Ferroleakeite ! NaNa2(Fe)3(Fe)2Li(Si8O22)(OH)2 C 2/m 2/m
66.01.03c.12b Potassicleakeite ! KNa2Mg2Fe2LiSi8O22(OH)2 C 2/m 2/m
66.01.03c.13 Kornite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m
66.01.03c.14 Ungarettiite NaNa2(Mn2Mn3)Si8O22O2 C 2/m 2/m
66.01.03c.15 Fluoro-ferroleakeite NaNa2(Fe2Fe2Li)Si8O22F2 C 2/m 2/m
66.01.03c.16 Obertiite ! NaNa2(Mg3FeTi)Si8O22(O,F,OH)2 C 2/m 2/m
66.01.03c.17 Dellaventuraite ! NaNa2(Mg2,Mn,Li,Ti)Si8O22O2 C 2/m 2/m
Strunz Class:
09.DE.25 09 - SILICATES (Germanates)
09.D - Inosilicates* Structural terminology according to Liebau (1985)
09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family
09.DE.25 Arfvedsonite NaNa2(Fe4Fe)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Ferroglaucophane []Na2(Fe3Al2)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Crossite ? Na2(Mg,Fe)3(Al,Fe)2Si8O22(OH)2 C 2/m 2/m
09.DE.25 Eckermannite NaNa2(Mg4Al)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Glaucophane []Na2(Mg3Al2)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Fluoro-ferroleakeite NaNa2(Fe2Fe2Li)Si8O22F2 C 2/m 2/m
09.DE.25 Ferro-eckermannite NaNa2(Fe4Al)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Ferroleakeite ! NaNa2(Fe)3(Fe)2Li(Si8O22)(OH)2 C 2/m 2/m
09.DE.25 Ferronyboite ! NaNa2(Fe)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.25 Ferric-ferronyboite ! NaNa2(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.25 Obertiite ! NaNa2(Mg3FeTi)Si8O22(O,F,OH)2 C 2/m 2/m
09.DE.25 Nyboite NaNa2(Mg3Al2)Si7AlO22(OH)2 C 2/m 2/m
09.DE.25 Magnesioriebeckite []Na2[(Mg,Fe)3Fe2]Si8O22(OH)2 C 2/m 2/m
09.DE.25 Kozulite NaNa2Mn4(Fe,Al)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Kornite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m
09.DE.25 Leakeite NaNa2(Mg2Fe2Li)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Magnesio-arfvedsonite NaNa2(Mg4Fe)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Ungarettiite NaNa2(Mn2Mn3)Si8O22O2 C 2/m 2/m
09.DE.25 Riebeckite []Na2(Fe3Fe2)Si8O22(OH)2 C 2/m 2/m
09.DE.25 Potassicleakeite ! KNa2Mg2Fe2LiSi8O22(OH)2 C 2/m 2/m
09.DE.25 Fluoronyboite ! NaNa2(Al2Mg3)(Si7Al)O22(F,OH)2 C 2/m 2/m
09.DE.25 Fluoro-magnesio-arfvedsonite ! NaNa2(Mg,Fe)4Fe[Si8O22](F,OH)2 C 2/m 2/m
09.DE.25 Potassicarfvedsonite ! KNa2Fe4FeSi8O22(OH)2 C 2/m 2/m
09.DE.25 Dellaventuraite ! NaNa2(Mg2,Mn,Li,Ti)Si8O22O2 C 2/m 2/m
Other Fluoro-ferroleakeite Information
References:
NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec)
See Also:
Links to other databases for Fluoro-ferroleakeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
Search for Fluoro-ferroleakeite using:
[AOL ]
[Bing ]
[Dog Pile ]
[GeoScienceWorld ]
[HotBot ]
[Ixquick ]
[Lycos ]
[MAMMA ]
[Scirus ]
[Teoma ]
[WebCrawler ]
[Wikipedia ]
[YAHOO ]
Visit our Advertisers for Fluoro-ferroleakeite :
Ask about Fluoro-ferroleakeite 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 Fluoro-ferroleakeite Specimen Label here :
Fluoro-ferroleakeite
NaNa2(Fe++2Fe+++2Li)Si8O22F2
Dana No: 66.01.03c.15 Strunz No: 09.DE.25
Locality:
Notes:
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.