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Manandonite

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Formula:
Li2Al4(Si2AlB)O10(OH)8
Colour:
Crystals - white; globules - dull yellow
Lustre:
Pearly
Hardness:
2½ - 3½
Specific Gravity:
2.76 - 2.89
Crystal System:
Orthorhombic
Name:
Named by A. Lacroix in 1912 for the Manandona River near the type locality Antandrokomby pegmatite, Madagascar.
An Al-, Li-, B-rich "analogue" of Amesite.


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Classification of ManandoniteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1912
8/H.23-100
9.ED.15

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets
71.1.2c.6

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers
17.5.1

17 : Silicates Containing other Anions
5 : Borosilicates

Physical Properties of ManandoniteHide

Pearly
Transparency:
Transparent, Translucent
Comment:
Pearly on cleavages
Colour:
Crystals - white; globules - dull yellow
Hardness:
2½ - 3½ on Mohs scale
Cleavage:
Perfect
{001}
Density:
2.76 - 2.89 g/cm3 (Measured)    2.79 g/cm3 (Calculated)

Optical Data of ManandoniteHide

Type:
Biaxial (+)
RI values:
nα = 1.600 nβ = 1.600 nγ = 1.610
2V:
Measured: 14° to 30°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v weak

Chemical Properties of ManandoniteHide

Formula:
Li2Al4(Si2AlB)O10(OH)8
Common Impurities:
Mn,Mg,Ca,Na,K,H20

Crystallography of ManandoniteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 5.05 Å, b = 8.76 Å, c = 13.76 Å
Ratio:
a:b:c = 0.576 : 1 : 1.571
Unit Cell V:
608.71 ų (Calculated from Unit Cell)
Morphology:
Micaceous pseudohexagonal plates, fanlike lamellar aggregates, or as globules.
Twinning:
Commonly twinned around [001] prducing pseudohexagonal crystals.

Type Occurrence of ManandoniteHide

Geological Setting of Type Material:
A complex type LCT pegmatite hosted in a metadolomite.
Associated Minerals at Type Locality:

Other Language Names for ManandoniteHide

Relationship of Manandonite to other SpeciesHide

Other Members of this group:
DickiteAl2(Si2O5)(OH)4Mon. m : Bb
Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
HalloysiteAl2(Si2O5)(OH)4Mon. m : Bb
KaoliniteAl2(Si2O5)(OH)4Tric. 1 : P1
NacriteAl2(Si2O5)(OH)4Mon. m : Bb
Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

Common AssociatesHide

AlbiteNa(AlSi3O8)
QuartzSiO2
TourmalineA(D3)G6(T6O18)(BO3)3X3Z
Associated Minerals Based on Photo Data:
Tourmaline3 photos of Manandonite associated with Tourmaline on mindat.org.
Quartz1 photo of Manandonite associated with Quartz on mindat.org.
Elbaite1 photo of Manandonite associated with Elbaite on mindat.org.
Brockite1 photo of Manandonite associated with Brockite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.ED.ClinochrysotileMon. 2/m
9.ED.05DickiteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05KaoliniteAl2(Si2O5)(OH)4Tric. 1 : P1
9.ED.05NacriteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.05Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4Mon. m : Bm
9.ED.10HalloysiteAl2(Si2O5)(OH)4Mon. m : Bb
9.ED.10HisingeriteFe3+2(Si2O5)(OH)4 · 2H2OMon.
9.ED.10Halloysite-7ÅAl2(Si2O5)(OH)4Mon. m
9.ED.15AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
9.ED.15AntigoriteMg3(Si2O5)(OH)4Mon. m : Bm
9.ED.15Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
9.ED.15Brindleyite(Ni,Al)3(Si,Al)2O5(OH)4Mon.
9.ED.15CaryopiliteMn2+3Si2O5(OH)4Mon.
9.ED.15ChrysotileMg3(Si2O5)(OH)4Mon.
9.ED.15CronstedtiteFe2+2Fe3+((Si,Fe3+)2O5)(OH)4Trig. 3m : P3 1m
9.ED.15Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4Mon.
9.ED.15Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4Mon.
9.ED.15KellyiteMn2+2Al(AlSiO5)(OH)4Hex.
9.ED.15LizarditeMg3(Si2O5)(OH)4
9.ED.15Népouite(Ni,Mg)3(Si2O5)(OH)4Orth.
9.ED.15PecoraiteNi3(Si2O5)(OH)4Mon.
9.ED.15GuidottiiteMn2Fe3+(Fe3+SiO5)(OH)4Hex. 6 : P63
9.ED.20Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2OAmor.
9.ED.20ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2OOrth.
9.ED.20ImogoliteAl2SiO3(OH)4
9.ED.20Neotocite(Mn,Fe,Mg)SiO3 · H2OAmor.
9.ED.25BismutoferriteFe3+2Bi(SiO4)2(OH)Mon. m : Bm
9.ED.25ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm

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

71.1.2c.1AmesiteMg2Al(AlSiO5)(OH)4Tric. 1 : P1
71.1.2c.2Berthierine(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4Mon. m : Bm
71.1.2c.3Brindleyite(Ni,Al)3(Si,Al)2O5(OH)4Mon.
71.1.2c.4Fraipontite(Zn,Al)3((Si,Al)2O5)(OH)4Mon.
71.1.2c.5KellyiteMn2+2Al(AlSiO5)(OH)4Hex.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.5.2ReedmergneriteNaBSi3O8Tric.
17.5.3SearlesiteNa(H2BSi2O7)Mon. 2 : P21
17.5.4OleniteNa(Al3)Al6(Si6O18)(BO3)3O3(OH)Trig.
17.5.5ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.6KalborsiteK6Al4BSi6O20(OH)4ClTet.
17.5.7BoromuscoviteKAl2(BSi3O10)(OH)2Mon.
17.5.8PoudretteiteKNa2B3Si12O30Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
17.5.9LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.10DatoliteCa(HBSiO5)Mon. 2/m : P21/b
17.5.11DanburiteCaB2Si2O8Orth. mmm (2/m 2/m 2/m)
17.5.12HowliteCa2B5SiO9(OH)5Mon. 2/m : P21/b
17.5.13BakeriteCa4(H5B5Si3O20)Mon. 2/m : P21/b
17.5.14OyeliteCa10Si8B2O29 · 12.5H2OOrth.
17.5.15KornerupineMg3Al6(Si,Al,B)5O21(OH)Orth.
17.5.16HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
17.5.17SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]Tric. 1 : P1
17.5.18Stillwellite-(Ce)(Ce,La,Ca)BSiO5
17.5.19Tadzhikite-(Ce)Ca4Ce3+2Ti◻(B4Si4O22)(OH)2Mon.
17.5.20Melanocerite-(Ce)(Ce,Ca)5(SiO4,BO4)3(OH,0)Hex.
17.5.21Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14
17.5.22Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
17.5.23Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
17.5.24Cappelenite-(Y)Ba(Y,Ce)6Si3B6O24F2Trig. 3 : P3
17.5.25Dumortierite(Al,Fe3+)7(SiO4)3(BO3)O3Orth. mmm (2/m 2/m 2/m)
17.5.26Holtite(Ta0.60.4)Al6BSi3O18(O,OH)2.25Orth. mmm (2/m 2/m 2/m) : Pnma
17.5.27DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.28 FerridraviteNaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3O
17.5.29Axinite-(Mg)Ca2MgAl2BSi4O15OHTric.
17.5.30Uvite SeriesCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)Trig. 3m : R3m
17.5.31GarrelsiteBa3NaSi2B7O16(OH)4Mon.
17.5.32TienshaniteKNa3Na6Ca2Ba6Mn6(Ti4+,Nb)6B12Si36O114(O,OH,F)11Hex. 6/m : P6/m
17.5.33LeucospheniteBaNa4Ti2B2Si10O30Mon.
17.5.34TaramelliteBa4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2ClxOrth. mmm (2/m 2/m 2/m) : Pmmn
17.5.35TitantaramelliteBa4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2ClxOrth.
17.5.36NagashimaliteBa4(V,Ti)4B2Si8O27(O,OH)2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
17.5.37Chromium-draviteNa(Mg3)Cr3+6(Si6O18)(BO3)3(OH)3(OH)Trig.
17.5.38WawayandaiteCa6Mn2BBe9Si6O23(OH,Cl)15Mon.
17.5.39Werdingite(Mg,Fe)2Al14Si4B4O37Tric.
17.5.40Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)Tric. 1 : P1
17.5.41AxiniteTric.
17.5.42TinzeniteCa2Mn2+4Al4[B2Si8O30](OH)2Tric.
17.5.44SchorlNa(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.45Fluor-buergeriteNa(Fe3+3)Al6(Si6O18)(BO3)3O3FTrig. 3m : R3m
17.5.46FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)Trig. 3m : R3m
17.5.47Axinite-(Fe)Ca2Fe2+Al2BSi4O15OHTric. 1 : P1
17.5.48HomiliteCa2(Fe2+,Mg)B2Si2O10Mon.
17.5.49Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
17.5.50Hyalotekite(Pb,Ba,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)Tric. 1 : P1
17.5.51Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2Mon.

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 ManandoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lacroix, A. (1912) Sur une nouvelle espèce minérale (manandonite) des pegmatites de Madagascar. Bulletin de la Société Française de Minéralogie: 35: 223-226. (in French)
Spencer, L.J. (1913) A (sixth) list of new mineral names. Mineralogical Magazine: 16: 352-378.
Jambor, J.L., Puziewicz, J. (1990) New mineral names. American Mineralogist: 75: 1209-1216.
Zheng, H., Bailey, S.W. (1995) The crystal structure of manandonite-2H2. American Mineralogist: 80: 387-393.
Ranorosoa, N., Fontan, F., Fransolet, A.M. (1989) Rediscovery of manandonite in the Sahatany Valley, Madagascar. European Journal of Mineralogy: 1: 633-638.
Grew, E.S., Anovitz, L.M. (2002) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised.

Internet Links for ManandoniteHide

Localities for ManandoniteHide

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.
Madagascar (TL)
 
  • Antananarivo Province
    • Vakinankaratra Region
      • Sahatany Pegmatite Field (Mt Ibity area)
        • Manandona Valley
Lacroix, A. (1912): Sur une nouvelle espèce minérale (manandonite) des pegmatites de Madagascar. Bulletin de la Société française de Minéralogie, 35, 223-226; Ranorosoa, N. , Fontan, F. & Fransolet, A-M. (1989): Rediscovery of manandonite in the Sahatany Valley, Madagascar. European Journal of Mineralogy 1, 633-638
        • Sahatany Valley
Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de doctorat de L'Universite Paul Sabatier, Toulouse
          • Marirana
Ranorosoa N (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulose
USA
 
  • Arizona
    • La Paz Co.
      • Quartzsite
        • Dome Rock Mts
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 287; Bideaux, R.A., et al (1960), Some new occurrences of minerals of AZ, AZ Geol. Soc. Digest: 3: 53-56.
Mineral and/or Locality  
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