Trilithionite Mineral Data (original) (raw)

General Trilithionite Information

Help on Chemical Formula: Chemical Formula:

KLi1.5Al1.5AlSi3O10F2

Help on Composition: Composition:

Molecular Weight = 399.21 gm

Potassium 9.79 % K 11.80 % K2O

Lithium 2.61 % Li 5.61 % Li2O

Aluminum 16.90 % Al 31.93 % Al2O3

Silicon 21.11 % Si 45.15 % SiO2

Oxygen 40.08 % O

Fluorine 9.52 % F 9.52 % F

- % F -4.01 % -O=F2

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

KLi1.5Al2.5Si3O10F2

Help on Environment: Environment:

Intermediate composition near polylithionite. Non-end member species.

Help on IMA Status: IMA Status:

Approved IMA 1960 (Dana # Added)

Help on Locality: Locality:

Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the high concentration of lithium.

Help on Name Pronunciation: Name Pronunciation:

Trilithionite + Pronunciation Say TRILITHIONITE

Trilithionite Image

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

Trilithionite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =1.7361:1:3.8884

Help on Cell Dimensions: Cell Dimensions:

a = 9.056, b = 5.216, c = 20.282, Z = 4; beta = 99.64° V = 944.51 Den(Calc)= 2.81

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

Click Here for Large Trilithionite 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

| | Brigatti M F , Caprilli E , Malferrari D , Medici L , Poppi L , European Journal of Mineralogy , 17 (2005) p.475-481, Crystal structure and chemistry of trilithionite-2M2 and polylithionite-2M2, Note: sample Lch 59a, Locality: Chedeville, France View Additional jPOWD Structure files for Trilithionite [1] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Trilithionite

Help on Cleavage: Cleavage:

{001} Perfect

Help on Color: Color:

White.

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Elastic - Fragments which spring back after bending.

Help on Habit: Habit:

Micaceous - Platy texture with "flexible" plates.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Trilithionite

Help on Optical Data: Optical Data:

NCalc= 1.58 - from Gladstone-Dale relationship (KC = 0.2048) where Ncalc=Dcalc*KC+1

Calculated Properties of Trilithionite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.76 gm/cc
note: Specific Gravity of Trilithionite =2.81 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PETrilithionite = 2.36 barns/electron
U=PETrilithionite x relectron= 6.51 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 138.78 (Gamma Ray American Petroleum Institute Units)
Concentration of Trilithionite per GRapi unit = 0.72 (%)

Estimated Radioactivity from Trilithionite - barely detectable

Trilithionite Classification

Help on Dana Class: Dana Class:

71.02.02b.08a (71)Phyllosilicate Sheets of Six-Membered Rings

(71.02)with 2:1 Layers

(71.02.02b)Mica Group (Biotite subgroup)

71.02.02b.01 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m

71.02.02b.01a Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m

71.02.02b.01b Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m

71.02.02b.01c Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m

71.02.02b.02 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m

71.02.02b.03 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m

71.02.02b.03a Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m

71.02.02b.04 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m

71.02.02b.05 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m

71.02.02b.05a Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m

71.02.02b.06 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m

71.02.02b.07 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono

71.02.02b.08 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m

71.02.02b.08a Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m

71.02.02b.08b Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono

71.02.02b.09 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m

71.02.02b.10 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m

71.02.02b.11 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m

71.02.02b.12 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m

71.02.02b.13 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m

71.02.02b.14 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m

71.02.02b.15 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m

71.02.02b.16 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m

71.02.02b.18 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m

Help on Strunz Class: Strunz Class:

09.EC.20 09 - SILICATES (Germanates)

09.E - Phyllosilicates

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

09.EC.20 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m

09.EC.20 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m

09.EC.20 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m

09.EC.20 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m

09.EC.20 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m

09.EC.20 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono

09.EC.20 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m

09.EC.20 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m

09.EC.20 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m

09.EC.20 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m

09.EC.20 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m

09.EC.20 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m

09.EC.20 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m

09.EC.20 Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m

09.EC.20 Shirokshinite! K(NaMg2)Si4O10F2 C 2/m 2/m

09.EC.20 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m

09.EC.20 Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m

09.EC.20 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m

09.EC.20 Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m

09.EC.20 Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m

09.EC.20 Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono

09.EC.20 Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m

09.EC.20 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m

09.EC.20 Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m

Other Trilithionite Information

Help on References: References:

PHYS. PROP.(RRUFF ID R040101)

Help on See Also: See Also:

Links to other databases for Trilithionite :
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 Trilithionite using:

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

Visit our Advertisers for Trilithionite :

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

Ask about Trilithionite 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 Trilithionite Specimen Label here :

Trilithionite

KLi1.5Al1.5AlSi3O10F2
Dana No: 71.02.02b.08a Strunz No: 09.EC.20
Locality:

Notes: