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Aliettite

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Formula:
Ca0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O
Colour:
Colorless, pale yellow or green
Lustre:
Earthy
Hardness:
1 - 2
Crystal System:
Monoclinic
Member of:
Name:
Named after Professor Andrea Alietti ((b. 1923) of the University of Modena, Modena, Italy, who first studied the structure of the mineral.
A regularly interstratified talc-saponite mineral.


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Classification of AliettiteHide

Approved
9.EC.60

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.4.2.8

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
4 : Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
16.7.8

16 : Silicates Containing Aluminum and other Metals
7 : Aluminosilicates of Mg

Physical Properties of AliettiteHide

Earthy
Transparency:
Translucent
Colour:
Colorless, pale yellow or green
Streak:
White
Hardness:
1 - 2 on Mohs scale

Optical Data of AliettiteHide

Type:
Uniaxial
RI values:
nα = 1.556 nβ = 1.567
Max Birefringence:
δ = 1.556
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of AliettiteHide

Formula:
Ca0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O
IMA Formula:
Ca0.2Mg6(Si,Al)8O20(OH)4 · 4H2O
Common Impurities:
Mn

Crystallography of AliettiteHide

Crystal System:
Monoclinic
Morphology:
Irregular, tabular to platy crystals, < 2 µm, with curled edges when viewed under the electron microscope; as microscopic rounded aggregates.

Type Occurrence of AliettiteHide

Other Language Names for AliettiteHide

German:Aliettit
Spanish:Aliettita

Relationship of Aliettite to other SpeciesHide

Member of:
Other Members of this group:
Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon.
FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon.
PimeliteNi3Si4O10(OH)2·4H2OHex.
Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon.
SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
SwineforditeLi(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2OMon.
VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
ZincsiliteZn3(Si4O10)(OH)2 · 4H2OMon.

Common AssociatesHide

CalciteCaCO3
Chlorite GroupA group of mostly monoclinic (also triclinic or orthorhombic) micaceous phyllosilicate minerals with a structure ...
Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
TalcMg3Si4O10(OH)2

Related Minerals - Nickel-Strunz GroupingHide

9.EC.05MinnesotaiteFe2+3Si4O10(OH)2Tric. 1 : P1
9.EC.05TalcMg3Si4O10(OH)2Tric. 1 : P1
9.EC.05WillemseiteNi3Si4O10(OH)2Mon.
9.EC.10FerripyrophylliteFe3+Si2O5(OH)Mon.
9.EC.10PyrophylliteAl2Si4O10(OH)2Tric. 1
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2Mon.
9.EC.15CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2Mon.
9.EC.15Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2Mon.
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2Mon.
9.EC.15RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2Mon. 2/m : B2/b
9.EC.15Tobelite(NH4,K)Al2(AlSi3O10)(OH)2Mon.
9.EC.15AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2Mon.
9.EC.15ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2Mon. 2/m : B2/b
9.EC.15FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2Mon. 2/m : B2/m
9.EC.15ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2Mon.
9.EC.15TainioliteKLiMg2(Si4O10)F2Mon.
9.EC.15Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2Mon.
9.EC.20AnniteKFe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20EphesiteLiNaAl2(Al2Si2O10)(OH)2Tric.
9.EC.20HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2Mon.
9.EC.20NorrishiteKLiMn3+2(Si4O10)O2Mon. 2/m : B2/m
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.20SiderophylliteKFe2+2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2Mon. 2/m : B2/m
9.EC.20Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4Mon. 2/m : B2/m
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2Mon.
9.EC.20TetraferrianniteKFe2+3((Fe3+,Al)Si3O10)(OH)2Mon.
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2Mon. 2/m : B2/b
9.EC.20FluoranniteKFe2+3(AlSi3O10)(F,OH)2Mon.
9.EC.20ShirokshiniteKNaMg2(Si4O10)F2Mon. 2/m : B2/m
9.EC.20ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2Mon.
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20FluorophlogopiteKMg3(AlSi3O10)(F,OH)2Mon. 2/m : B2/m
9.EC.20UM2004-49-SiO:AlCsFHKLi(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20Suhailite(NH4)Fe2+3(AlSi3O10)(OH)2Mon. 2/m : B2/m
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2Mon. 2/m : B2/m
9.EC.20OrloviteKLi2Ti(Si4O10)OFMon. 2 : B2
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2Mon. 2/m : B2/m
9.EC.25Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2Mon.
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2Mon.
9.EC.35Anandite(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2Mon. 2/m : B2/b
9.EC.35BityiteLiCaAl2(AlBeSi2O10)(OH)2Mon. 2/m : B2/b
9.EC.35ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2Mon. 2/m : B2/m
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2Mon.
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2Mon.
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2Mon. 2/m : B2/m
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2Mon. 2/m : B2/m
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2OMon.
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2Mon.
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2OMon.
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2Mon.
9.EC.45SwineforditeLi(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2OMon.
9.EC.45ZincsiliteZn3(Si4O10)(OH)2 · 4H2OMon.
9.EC.45FerrosaponiteCa0.3(Fe2+,Mg,Fe3+)3((Si,Al)4O10)(OH)2 · 4H2O
9.EC.50VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2OMon. 2/m
9.EC.55Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8Tric.
9.EC.55Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8Mon.
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8Mon. 2/m : B2/m
9.EC.55Cookeite(Al2Li)Al2(AlSi3O10)(OH)8Mon. 2/m
9.EC.55FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2
9.EC.55Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
9.EC.55Nimite(Ni,Mg,Al)6((Si,Al)4O10)(OH)8Mon.
9.EC.55Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55PennantiteMn2+5Al(AlSi3O10)(OH)8Tric.
9.EC.55SudoiteMg2Al3(Si3Al)O10)(OH)8Mon.
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8Mon. 2 : B2
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8Tric. 1 : P1
9.EC.55BorocookeiteLi1+3xAl4-x(BSi3O10)(OH)8
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2OMon.
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2OMon.
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon.
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2OMon.
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2Mon.
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6Trig. 3m (3 2/m) : P3 1m
9.EC.75Ferrisurite(Pb,Ca)2.4Fe3+2(Si4O10)(CO3)1.7(OH)3 · nH2OMon.
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2Mon.
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2OMon.
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

71.4.2.1DozyiteMg7Al2(Al2Si4O15)(OH)12Mon.
71.4.2.2LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10Mon.
71.4.2.3Saliotite(Li,Na)Al3(AlSi3O10)(OH)5Mon.
71.4.2.4TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2OMon. 2 : B2
71.4.2.5Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2OOrth.
71.4.2.6KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
71.4.2.7Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

16.7.1PyropeMg3Al2(SiO4)3Iso.
16.7.2SapphirineMg4(Mg3Al9)O4[Si3Al9O36]Mon. 2/m : P21/b
16.7.3Sapphirine-1A(Mg,Al,Fe2+)8[(Al,Si,Fe3+)6O18]O2Tric. 1 : P1
16.7.4MagnesiochloritoidMgAl2(SiO4)O(OH)2Mon. 2/m : B2/b
16.7.5KulkeiteMg8Al(AlSi7O20)(OH)10Mon.
16.7.6Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
16.7.7SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2OMon.
16.7.9Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2OMon. 2/m : B2/m
16.7.10Baumite(Mg,Al,Mn,Zn,Fe)3(Si,Al)2O5(OH)4

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for AliettiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Fleischer, M. (1972) New mineral names. American Mineralogist: 57: 594-598.
Bailey, S.W. (1982) Nomenclature for regular interstratifications. American Mineralogist: 67: 394-398.
Brigatti, M.F., Poppi, L. (1987) Natural and monoionic aliettite: hydration and dehydration states. Clay Minerals: 22: 187-197.

Internet Links for AliettiteHide

Localities for AliettiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Democratic Republic of Congo (Zaïre)
 
Handbook of Mineralogy
Italy
 
  • Emilia-Romagna
    • Modena Province
Handbook of Mineralogy
    • Parma Province
      • Taro Valley
        • Borgo Val di Taro
[Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
    • Piacenza Province
      • Nure Valley
        • Ferriere
Veniale F., van der Marel H.W. (1968): A regular talc-saponite mixed-layer mineral from Ferriere, Nure Valley (Piacenza Province, Italy). Contributions to Mineralogy and Petrology, 17, 237-254; Brigatti M.F., Poppi L. (1987): Natural and monoionic aliettite: hydratation and dehydratation states. Clay Minerals, 22, 1987-197.
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Turii Cape
www.koeln.netsurf.de/~w.steffens/tury.htm
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Ufaley District (Ufalei District)
Talovina, I.V., Lazarenkov, V.G., and Vorontsova, N.I. (2003): Lithology and Mineral Resources 38(5), 403-415.
USA
 
  • Nevada
    • Eureka Co.
      • Lynn District
NBMG Spec. Pub. 31 Minerals of Nevada
Uzbekistan
 
  • Samarkand Viloyati (Samarqand)
    • Zirabulak Mountain (Zirabulakskie Mountain)
Nikita V. Chukanov (2013) Infrared spectra of mineral species: Extended library. Springer p440
Mineral and/or Locality  
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