Liottite Mineral Data
General Liottite Information
Chemical Formula:
(Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O)
Composition:
Molecular Weight = 1,204.89 gm
Potassium 4.22 % K 5.08 % K2 O
Sodium 5.91 % Na 7.97 % Na2 O
Calcium 11.97 % Ca 16.75 % CaO
Aluminum 13.21 % Al 24.96 % Al2 O3
Silicon 14.22 % Si 30.42 % SiO2
Hydrogen 0.20 % H 1.79 % H2 O
Carbon 0.60 % C 2.19 % CO2
Sulfur 3.46 % S 8.64 % SO3
Chlorine 2.65 % Cl 2.65 % Cl
- %
Cl -0.60 % -O=Cl2
Oxygen 43.55 % O
______ ______
100.00 % 99.87 % = TOTAL OXIDE
Empirical Formula:
Ca3.6 Na3.1 K1.3 Si6.1 Al5.9 O24 (SO4 )1.3 Cl0.9 (CO3 )0.6 (OH)1.2 �0.6(H2 O)
Environment:
In cavities in ejecta blocks of metasomatized carbonate rocks in a pumice deposit.
IMA Status:
Approved IMA 1977
Locality:
At Pitigliano, near Grosseto, Tuscany, Italy. Link to MinDat.org Location Data.
Name Origin:
Named for Luciano Liotti, mineral collector who donated the specimen in which this mineral was first found.
Name Pronunciation:
Liottite
Synonym:
ICSD 82468
PDF 47-1742
Liottite Image
Images:
Liottite Crystallography
Axial Ratios:
a:c = 1:1.25299
Cell Dimensions:
a = 12.842, c = 16.091, Z = 3; V = 2,298.15 Den(Calc)= 2.61
Crystal System:
Hexagonal - Ditrigonal Dipyramidal H-M Symbol (6 m2) Space Group: P 6 m2
X Ray Diffraction:
By Intensity(I/Io ): 3.715(1), 3.315(0.75), 4.84(0.36),
Physical Properties of Liottite
Cleavage:
None
Color:
Colorless.
Density:
2.56
Diaphaneity:
Transparent
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
5 - Apatite
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Liottite
Gladstone-Dale:
CI meas = 0.014 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = 0.033 (Excellent) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2027,KPDmeas = 0.2066,KC = 0.2096 Ncalc = 1.54 - 1.55
Optical Data:
Uniaxial (-), e=1.528, w=1.53, bire=0.0020.
Calculated Properties of Liottite
Electron Density:
Bulk Density (Electron Density)=2.54 gm/cc note: Specific Gravity of Liottite =2.56 gm/cc.
Fermion Index:
Fermion Index = 0.0073415646 Boson Index = 0.9926584354
Photoelectric:
PELiottite = 3.31 barns/electronU=PELiottite x r electron = 8.41 barns/cc.
Radioactivity:
GRapi = 60.35 (Gamma Ray American Petroleum Institute Units)
Concentration of Liottite per GRapi unit = 1.66 (%)
Estimated Radioactivity from Liottite - barely detectable
Liottite Classification
Dana Class:
76.02.05.09 (76) Tectosilicate Al-Si Framework
(76.02) Feldspathoids and related species
(76.02.05) Cancrinite group
76.02.05.01 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 63 /mmc, P 63 mc, or P 6 2c Hex
76.02.05.02 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 31 c 3m
76.02.05.03 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6
76.02.05.04 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 63 6
76.02.05.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63 /m 6/m
76.02.05.06 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 32 1 3 2
76.02.05.07 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 31 c 3m
76.02.05.08 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 63 6
76.02.05.09 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6 m2 6 m2
76.02.05.10 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 63 22 6 2 2
76.02.05.11 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 63 6
76.02.05.12 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63 /m 6/m
76.02.05.13 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 63 /mmc ? 6/m 2/m 2/m
76.02.05.14 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 62 22 6 2 2
76.02.05.15 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 63 22 6 2 2
76.02.05.16 Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•n(H2O)(?) P 6 2m 6 m2
76.02.05.17 Marinellite ! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 31 c or P 2c Trig
76.02.05.18 Farneseite ! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 63 /m 6/m 2/m 2/m
76.02.05.19 Alloriite ! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 31 c 3m
76.02.05.20 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3
76.02.05.21 IMA2008-006 ! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3
76.02.05.22 Kyanoxalite ! Na7(Al5-6Si6-7O24)(C2O4)0.5-1.0•5H2O P 63 6
76.02.05.23 IMA2008-065 ! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 63 6
Strunz Class:
09.FB.05 09 - SILICATES (Germanates)
09.F - Tektosilicates without Zeolitic H2O
09.FB -Tektosilicates with additional anions
09.FB.05 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 31 c 3m
09.FB.05 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 63 /mmc, P 63 mc, or P 6 2c Hex
09.FB.05 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 63 6
09.FB.05 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 63 6
09.FB.05 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 63 6
09.FB.05 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 32 1 3 2
09.FB.05 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6 m2 6 m2
09.FB.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 63 /m 6/m
09.FB.05 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 31 c 3m
09.FB.05 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 63 /m 6/m
09.FB.05 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 63 6
09.FB.05 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 63 22 6 2 2
09.FB.05 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 63 22 6 2 2
09.FB.05 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 63 /mmc ? 6/m 2/m 2/m
09.FB.05 Marinellite ! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 31 c or P 2c Trig
09.FB.05 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 62 22 6 2 2
09.FB.05 IMA2008-065 ! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 63 6
09.FB.05 Farneseite ! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 63 /m 6/m 2/m 2/m
09.FB.05 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3
09.FB.05 IMA2008-006 ! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3
09.FB.05 Alloriite ! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 31 c 3m
Other Liottite Information
References:
NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Liottite :
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 - Zeolite Database by Bruno Herreros
Search for Liottite using:
[AOL ]
[Bing ]
[Dog Pile ]
[GeoScienceWorld ]
[HotBot ]
[Ixquick ]
[Lycos ]
[MAMMA ]
[Scirus ]
[Teoma ]
[WebCrawler ]
[Wikipedia ]
[YAHOO ]
Visit our Advertisers for Liottite :
Ask about Liottite 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 Liottite Specimen Label here :
Liottite
(Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O)
Dana No: 76.02.05.09 Strunz No: 09.FB.05
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.