Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Anandite

This page is currently not sponsored. Click here to sponsor this page.
Ananda Kentish Coomaraswamy
Formula:
(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2
System:
Monoclinic
Colour:
Black
Hardness:
3 - 4
Member of:
Name:
Named in 1967 by D. B. Pattiaratchi, Esko Saari, and Thure Georg Sahama in honor of Ananda Kentish Coomaraswamy [August 22, 1877 Columbo, Sri Lanka (Ceylon)− September 9, 1947 Needham, Massachusetts, USA], briefly, the first director of the Mineral Survey of Ceylon. In 1906, he left geology, moved to New York City, New York, USA, and became a noted philosopher.
Mica Group.
An unusual sulphur-bearing member of the mica group with three known polytypes: anandite-2M1, anandite-1M, and anandite-2O (the most common polytype at the type locality). All anandite polytypes resemble each other, nearly opaque black mica.

Classification of Anandite

Approved
9.EC.35

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
71.2.2c.4

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
2 : Sheets of 6-membered rings with 2:1 layers
16.12.15

16 : Silicates Containing Aluminum and other Metals
12 : Aluminosilicates of Sr, Ba and Zn
mindat.org URL:
http://www.mindat.org/min-456.html
Please feel free to link to this page.

Type Occurrence of Anandite

General Appearance of Type Material:
black mica
Year of Discovery:
1967
Geological Setting of Type Material:
As monomineralic veinlets and lenses in a banded magnetite deposit capped by banded magnetite-barite rock. The ore zone and associated interbedded calc-schists and gneisses are of metasedimentary origin, of approximately granulite facies grade.
Associated Minerals at Type Locality:

Physical Properties of Anandite

Sub-Vitreous, Resinous
Diaphaneity (Transparency):
Opaque
Colour:
Black
Hardness (Mohs):
3 - 4
Cleavage:
Perfect
parallel to {001}
Fracture:
Micaceous
Comment:
A brittle mica
Density:
3,91-3.94 g/cm3 (Measured)    3.91 g/cm3 (Calculated)

Crystallography of Anandite

Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Anandite-2MAnandite-2O
  
Monoclinic Orthorhombic 
m - Domaticmmm (2/m 2/m 2/m) - Dipyramidal
  
  
a = 5.4431(3) Å, b = 9.4719(6) Å, c = 20.042(1) Å
β = 95.046(1)°
a = 5.468(9) Å, b = 9.489(18) Å, c = 19.963(11) Å
a:b:c = 0.575 : 1 : 2.116a:b:c = 0.576 : 1 : 2.104
V 1,029.29 ų
(Calculated from Unit Cell)
V 1,035.80 ų
(Calculated from Unit Cell)
 4
X-Ray Powder Diffraction Data:
d-spacingIntensity
9.92 (60)
5.00 (85)
4.27 (10)
3.70 (20)
3.43 (40)
3.32 (100)
3.17 (25)
2.929 (25)
2.716 (50)
2.681 (45)
2.521 (16)
2.490 (80)
2.240 (20)
1.991 (35)
1.660 (35)
Comments:
ICDD 19-78 for 2M1 poytype, a 5.468, b 9.489, c 19.963 Å, β 94.87°. Fleet et al. (2003) give for the 2M1 polytype a 5.412, b 9.434, c 19.953 Å, β 94.87°.

Optical Data of Anandite

Type:
Biaxial (+)
RI values:
nα = 1.855 nγ = 1.880
Birefringence:
0.025
Max Birefringence:
δ = 0.025
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
strong
Pleochroism:
Visible
Comments:
Y= green
Z= brown

Chemical Properties of Anandite

Formula:
(Ba,K)(Fe2+,Mg)3((Si,Al,Fe)4O10)(S,OH)2
All elements listed in formula:

Relationship of Anandite to other Species

Member of:
Other Members of Group:
AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
AnniteKFe32+(AlSi3O10)(OH)2
Annite-Phlogopite Series
AspidoliteNaMg3(AlSi3O10)(OH)2
BalestraiteKLi2V5+Si4O12
Biotite
BityiteLiCaAl2(AlBeSi2O10)(OH)2
BoromuscoviteKAl2(BSi3O10)(OH)2
Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2
CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2
ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2
ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2
ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
EastoniteKMg2Al(Al2Si2O10)(OH)2
EphesiteLiNaAl2(Al2Si2O10)(OH)2
FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2
FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2
FluoranniteKFe32+(AlSi3O10)(F,OH)2
FluorophlogopiteKMg3(AlSi3O10)(F,OH)2
Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Glauconite(K,Na)(Mg,Fe2+,Fe3+)(Fe3+,Al)(Si,Al)4O10(OH)2
HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2
Lepidolite
LuanshiweiiteKLiAl1.5□0.5(Si3.5Al0.5)O10(OH,F)2
MargariteCaAl2(Al2Si2O10)(OH)2
Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
MuscoviteKAl2(AlSi3O10)(OH)2
Muscovite-Celadonite Series
NanpingiteCsAl2(AlSi3O10)(OH,F)2
Natro-glauconite(Na,K)(Fe3+,Al,Mg)2((Si,Al)4O10)(OH)2
NorrishiteKLiMn23+(Si4O10)O2
Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
ParagoniteNaAl2(AlSi3O10)(OH)2
Phengite
PhlogopiteKMg3(AlSi3O10)(OH)2
PolylithioniteKLi2Al(Si4O10)(F,OH)2
PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2
RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
ShirokshiniteKNaMg2(Si4O10)F2
ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2
SiderophylliteKFe22+Al(Al2Si2O10)(OH)2
SokolovaiteCsLi2Al(Si4O10)F2
Suhailite(NH4)Fe32+(AlSi3O10)(OH)2
TainioliteKLiMg2(Si4O10)F2
TetraferrianniteKFe32+((Fe3+,Al)Si3O10)(OH)2
TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Tobelite(NH4,K)Al2(AlSi3O10)(OH)2
TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
VoloshiniteRb(LiAl1.51.5)(Al0.5Si3.5)O10F2
Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4
YangzhumingiteKMg2.5(Si4O10)F2
ZinnwalditeKLiFe2+Al(AlSi3O10)(F,OH)2
9.EC.05MinnesotaiteFe32+Si4O10(OH)2
9.EC.05TalcMg3Si4O10(OH)2
9.EC.05WillemseiteNi3Si4O10(OH)2
9.EC.10FerripyrophylliteFe3+Si2O5(OH)
9.EC.10PyrophylliteAl2Si4O10(OH)2
9.EC.15BoromuscoviteKAl2(BSi3O10)(OH)2
9.EC.15CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
9.EC.15Chernykhite(Ba,Na)(V3+,Al,Mg)2((Si,Al)4O10)(OH)2
9.EC.15Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
9.EC.15MuscoviteKAl2(AlSi3O10)(OH)2
9.EC.15NanpingiteCsAl2(AlSi3O10)(OH,F)2
9.EC.15ParagoniteNaAl2(AlSi3O10)(OH)2
9.EC.15RoscoeliteK(V3+,Al)2(AlSi3O10)(OH)2
9.EC.15Tobelite(NH4,K)Al2(AlSi3O10)(OH)2
9.EC.15AluminoceladoniteK(Mg,Fe2+)Al(Si4O10)(OH)2
9.EC.15ChromphylliteK(Cr,Al)2(AlSi3O10)(OH,F)2
9.EC.15FerroaluminoceladoniteK(Fe2+,Mg)(Al,Fe3+)(Si4O10)(OH)2
9.EC.15FerroceladoniteK(Fe2+,Mg)(Fe3+,Al)(Si4O10)(OH)2
9.EC.15ChromceladoniteK(Mg,Fe2+)(Cr,Al)(Si4O10)(OH)2
9.EC.15TainioliteKLiMg2(Si4O10)F2
9.EC.15Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
9.EC.20AnniteKFe32+(AlSi3O10)(OH)2
9.EC.20EphesiteLiNaAl2(Al2Si2O10)(OH)2
9.EC.20HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
9.EC.20Masutomilite(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
9.EC.20NorrishiteKLiMn23+(Si4O10)O2
9.EC.20PhlogopiteKMg3(AlSi3O10)(OH)2
9.EC.20PolylithioniteKLi2Al(Si4O10)(F,OH)2
9.EC.20PreiswerkiteNaMg2Al(Al2Si2O10)(OH)2
9.EC.20SiderophylliteKFe22+Al(Al2Si2O10)(OH)2
9.EC.20TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
9.EC.20FluorotetraferriphlogopiteKMg3(Fe3+Si3O10)F2
9.EC.20Wonesite(Na,K)(Mg,Fe,Al)6((Al,Si)4O10)2(OH,F)4
9.EC.20EastoniteKMg2Al(Al2Si2O10)(OH)2
9.EC.20TetraferrianniteKFe32+((Fe3+,Al)Si3O10)(OH)2
9.EC.20TrilithioniteK(Li1.5Al1.5)(AlSi3O10)(F,OH)2
9.EC.20FluoranniteKFe32+(AlSi3O10)(F,OH)2
9.EC.20ShirokshiniteKNaMg2(Si4O10)F2
9.EC.20ShirozuliteK(Mn2+,Mg)3(AlSi3O10)(OH)2
9.EC.20SokolovaiteCsLi2Al(Si4O10)F2
9.EC.20AspidoliteNaMg3(AlSi3O10)(OH)2
9.EC.20FluorophlogopiteKMg3(AlSi3O10)(F,OH)2
9.EC.20UM2004-49-SiO:AlCsFHKLi(Cs,K)(Al,Li)2.6((Si,Al)4O10)(F,OH)2
9.EC.20Suhailite(NH4)Fe32+(AlSi3O10)(OH)2
9.EC.20YangzhumingiteKMg2.5(Si4O10)F2
9.EC.20OrloviteKLi2Ti(Si4O10)OF
9.EC.20OxyphlogopiteK(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2
9.EC.25Brammallite(Na,H3O)(Al,Mg,Fe)2((Si,Al)4O10)(OH)2
9.EC.30MargariteCaAl2(Al2Si2O10)(OH)2
9.EC.35BityiteLiCaAl2(AlBeSi2O10)(OH)2
9.EC.35ClintoniteCa(Mg,Al)3(Al3SiO10)(OH)2
9.EC.35Kinoshitalite(Ba,K)(Mg,Mn2+,Al)3(Al2Si2O10)(OH)2
9.EC.35Ferrokinoshitalite(Ba,K)(Fe2+,Mg)3(Al2Si2O10)(OH,F)2
9.EC.35Oxykinoshitalite(Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2
9.EC.35FluorokinoshitaliteBaMg3(Al2Si2O10)F2
9.EC.40Beidellite(Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
9.EC.40Kurumsakite(Zn,Ni,Cu)8Al8V25+Si5O35 · 27H2O (?)
9.EC.40Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
9.EC.40NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
9.EC.40VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
9.EC.40Yakhontovite(Ca,Na)0.5(Cu,Fe,Mg)2(Si4O10)(OH)2 · 3H2O
9.EC.45HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
9.EC.45SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
9.EC.45SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O
9.EC.45SpadaiteMgSiO2(OH)2 · H2O (?)
9.EC.45Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
9.EC.45SwineforditeLi(Al,Li,Mg)4((Si,Al)4O10)2(OH,F)4 · nH2O
9.EC.45ZincsiliteZn3(Si4O10)(OH)2 · 4H2O
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 · 8H2O
9.EC.55Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8
9.EC.55Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
9.EC.55ClinochloreMg5Al(AlSi3O10)(OH)8
9.EC.55Cookeite(Al2Li)Al2(AlSi3O10)(OH)8
9.EC.55FranklinfurnaceiteCa2Fe3+Mn32+Mn3+(Zn2Si2O10)(OH)8
9.EC.55Gonyerite(Mn2+,Mg)5Fe3+(Fe3+Si3O10)(OH)8
9.EC.55Nimite(Ni,Mg,Al)6((Si,Al)4O10)(OH)8
9.EC.55Orthochamosite(Fe2+,Mg,Fe3+)5Al(AlSi3O10)(OH,O)8
9.EC.55PennantiteMn52+Al(AlSi3O10)(OH)8
9.EC.55SudoiteMg2Al3(Si3Al)O10)(OH)8
9.EC.55DonbassiteAl4.33(AlSi3O10)(OH)8
9.EC.55GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
9.EC.55BorocookeiteLi1+3xAl4-x(BSi3O10)(OH)8
9.EC.60AliettiteCa0.2Mg6((Si,Al)8O20)(OH)4 · 4H2O
9.EC.60Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
9.EC.60DozyiteMg7Al2(Al2Si4O15)(OH)12
9.EC.60HydrobiotiteK(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2O
9.EC.60Karpinskite(Ni,Mg)2Si2O5(OH)2 (?)
9.EC.60KulkeiteMg8Al(AlSi7O20)(OH)10
9.EC.60LunijianlaiteLi0.7Al6.2(AlSi7O20)(OH,O)10
9.EC.60Rectorite(Na,Ca)Al4((Si,Al)8O20)(OH)4 · 2H2O
9.EC.60Saliotite(Li,Na)Al3(AlSi3O10)(OH)5
9.EC.60TosuditeNa0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O
9.EC.60BrinrobertsiteNa0.3Al4(Si4O10)2(OH)4 · 3.5 H2O
9.EC.65Macaulayite(Fe,Al)24Si4O43(OH)2
9.EC.70BurckhardtitePb2(Fe3+Te6+)[AlSi3O8]O6
9.EC.75Ferrisurite(Pb,Ca)2.4Fe23+(Si4O10)(CO3)1.7(OH)3 · nH2O
9.EC.75Surite(Pb,Ca)3(Al,Fe2+,Mg)2((Si,Al)4O10)(CO3)2(OH)2
9.EC.75Niksergievite(Ba,Ca)2Al3(AlSi3O10)(CO3)(OH)6 · nH2O
9.EC.80KegelitePb8Al4(Si8O20)(SO4)2(CO3)4(OH)8
16.12.1StronalsiteNa2SrAl4Si4O16
16.12.2SlawsoniteSr(Al2Si2O8)
16.12.3Brewsterite
16.12.4CelsianBa(Al2Si2O8)
16.12.5ParacelsianBa(Al2Si2O8)
16.12.6CymriteBaAl2Si2(O,OH)8 · H2O
16.12.7EdingtoniteBa[Al2Si3O10] · 4H2O
16.12.8BanalsiteNa2BaAl4Si4O16
16.12.9Harmotome(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] · 12H2O
16.12.10Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
16.12.11BalipholiteBaLiMg2Al3(Si2O6)2(OH)4
16.12.12ArmeniteBaCa2Al6Si9O30 · 2H2O
16.12.13Wellsite(Ba,Ca,K2)Al2Si6O16 · 6H2O
16.12.14Merlinoite(K,Na)5(Ca,Ba)2Al9Si23O64 · 23H2O
16.12.16Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4
16.12.17SauconiteNa0.3Zn3((Si,Al)4O10)(OH)2 · 4H2O
16.12.18Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16
16.12.19HendricksiteK(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
16.12.20Baileychlore(Zn,Fe2+,Al,Mg)6(Si,Al)4O10(OH)8

Other Names for Anandite

Name in Other Languages:

Other Information

Not fluorescent in ultraviolet
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 Anandite

Reference List:
Pattiaratchi, D. B., Saari, E., and Sahama, T. G. (1967) Anandite, a new barium iron silicate from Wilagedera, North Western Province, Ceylon. Mineralogical Magazine: 36: 1-4.

Lovering, J. F. and Widdowson, J. R. (1968) Electron-microprobe analysis of anandite. Mineralogical Magazine, 36, 871-874.

Giuseppetti, G. and Tadini, C. (1972) The crystal structure of 2O brittle mica: anandite. Tschermaks Mineralogische und Petrographische Mitteilungen, 18, 169-184.

Filut, Marlene A., Rule, Audrey C., and Bailey, Sturgis W. (1985) Crystal structure refinement of anandite-2O, a barium- and sulfur-bearing trioctahedral mica. American Mineralogist, 70, 1298-1308.

Canadian Mineralogist (1998): 36: 905-912.

Fleet, Deer, Howie, and Zussman (2003) Mica, Rock-Forming Minerals. vol. 3A (second edition), p. 732.

Thomas J. Bujnowski, Stephen Guggenheim and Toshio Kato (2009): Crystal structure determination of anandite-2M mica. American Mineralogist, 94, 1144-1152.

Internet Links for Anandite

Localities for Anandite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Sri Lanka (TL)
 
  • North Western Province
Mineralogical Magazine (1967) 36 ,1-4
USA
 
  • California
    • Fresno Co.
      • Big Creek-Rush Creek District
        • Rush Creek deposit
          • Big Creek
[MinRec 33:161]; Canadian Mineralogist (2001): 39:1053-1058.
    • Mariposa Co.
      • East Belt
        • Clearing House District
          • Clearing House
            • Trumbull Peak
Canadian Mineralogist39:1059-1064
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Ogdensburg
          • Sterling Hill
Tracy, R.J., et al: Eos, Transactions of the Amer. Geophysical Union:68, #16:467 (abstract) (1987); Tracy, R.J.: Am. Min.:76:1683-1693 (1991); Dunn(1995):Pt4:468.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2016, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 5, 2016 13:38:41 Page generated: April 25, 2016 00:37:38