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Manandonite Mineral Data

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General Manandonite Information

Help on Chemical  Formula: Chemical Formula: Li2Al4[(Si2AlB)O10](OH)8
Help on Composition: Composition: Molecular Weight = 511.82 gm
   Lithium    2.71 %  Li    5.84 % Li2O
   Aluminum  26.36 %  Al   49.80 % Al2O3
   Silicon   10.97 %  Si   23.48 % SiO2
   Boron      2.11 %  B     6.80 % B2O3
   Hydrogen   1.58 %  H    14.08 % H2O
   Oxygen    56.27 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Li2Al5Si2BO10(OH)8
Help on Environment: Environment: Pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1912
Help on Locality: Locality: Antandrokomby, near Mt. Bity on the Manandona River, Madagascar. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Manandonite + Pronunciation Say MANANDONITE
 

Manandonite Image

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  Manandonite

Comments: Massive manandonite with crystals to 2 mm.
Location: Manandona River, Sahatany Valley, Madagascar. Scale: 2.2 x 1.3 cm.
© John Veevaert

Manandonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5777:1:1.5699
Help on Cell Dimensions: Cell Dimensions: a = 5.07, b = 8.776, c = 13.778, Z = 2; alpha = 90.09°, beta = 90.12°, gamma = 89.97° V = 613.04 Den(Calc)= 2.77
Help on Crystal System: Crystal System: Triclinic - Pedial H-M Symbol (1) Space Group: C1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.92(1), 3.447(0.8), 2.376(0.35),
 

Physical Properties of Manandonite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Pearl white.
Help on Density: Density: 2.89
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Micaceous - Fracture of flexable micaceous cleavage fragments.
Help on Habit: Habit: Massive - Lamellar - Distinctly foliated fine-grained forms.
Help on Habit: Habit: Micaceous - Platy texture with "flexible" plates.
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 2.5-3.5 - Finger Nail-Copper Penny
Help on Luster: Luster: Pearly
Help on Streak: Streak: white
 

Optical Properties of Manandonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.101 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.063 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2178,KPDmeas= 0.2088,KC= 0.2323
Ncalc = 1.64 - 1.67
Help on Optical Data: Optical Data: Biaxial (+), a=1.6, b=1.6, g=1.61, bire=0.0100, 2V(Calc)=0, 2V(Meas)=14-30.
 

Calculated Properties of Manandonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.77 gm/cc
note: Specific Gravity of Manandonite =2.77 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEManandonite = 1.27 barns/electron
U=PEManandonite x rElectron Density= 3.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Manandonite is Not Radioactive
 

Manandonite Classification

Help on  Dana Class: Dana Class: 71.01.02c.06 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.01)with 1:1 layers
  (71.01.02c)Serpentine group (Amesite subgroup)
 
71.01.02c.01 Amesite Mg2Al(SiAl)O5(OH)4 C1 1
 
71.01.02c.02 Berthierine (Fe,Fe,Al,Mg)2-3(Si,Al)2O5(OH)4 Cm m
 
71.01.02c.03 Brindleyite (Ni,Mg,Fe)2Al(SiAl)O5(OH)4 C 2 2
 
71.01.02c.04 Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4 Cm m
 
71.01.02c.05 Kellyite (Mn,Mg,Al)3(Si,Al)2O5(OH)4 P 63 6
 
71.01.02c.06 Manandonite Li2Al4[(Si2AlB)O10](OH)8 C1 1
 
71.01.02c.07 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 31m 3m
Help on  Strunz Class: Strunz Class: 09.ED.15 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.ED -Phyllosilicates with kaolinite layers
 
09.ED.15 Clinochrysotile? Mg3Si2O5(OH)4 Cc, C 2/m Mono
 
09.ED.15 Berthierine (Fe,Fe,Al,Mg)2-3(Si,Al)2O5(OH)4 Cm m
 
09.ED.15 Brindleyite (Ni,Mg,Fe)2Al(SiAl)O5(OH)4 C 2 2
 
09.ED.15 Amesite Mg2Al(SiAl)O5(OH)4 C1 1
 
09.ED.15 Antigorite (Mg,Fe)3Si2O5(OH)4 Cm m
 
09.ED.15 Caryopilite (Mn,Mg,Zn,Fe)3(Si,As)2O510(OH,Cl)4 Cm or C 2/m Mono
 
09.ED.15 Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4 Cm m
 
09.ED.15 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 31m 3m
 
09.ED.15 Chrysotile Mg3Si2O5(OH)4 A2/m 2/m
 
09.ED.15 Nepouite Ni3Si2O5(OH)4 Ccm21 mm2
 
09.ED.15 Greenalite (Fe,Fe)2-3Si2O5(OH)4 Unk Mono
 
09.ED.15 Kellyite (Mn,Mg,Al)3(Si,Al)2O5(OH)4 P 63 6
 
09.ED.15 Maufite? (Mg,Ni)Al4Si3O13•4(H2O)(?) Mono ? Mono
 
09.ED.15 Lizardite Mg3Si2O5(OH)4 P1 1
 
09.ED.15 Orthochrysotile? Mg3Si2O5(OH)4 Unk Ortho
 
09.ED.15 Manandonite Li2Al4[(Si2AlB)O10](OH)8 C1 1
 
09.ED.15 Pecoraite Ni3Si2O5(OH)4 C 2/m 2/m
 
09.ED.15 Parachrysotile? Mg3Si2O5(OH)4 Unk Ortho
 

Other Manandonite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Manandonite :
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 - WWW-MINCRYST

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Print or Cut-and-Paste your Manandonite Specimen Label here :

Manandonite

Li2Al4[(Si2AlB)O10](OH)8
Dana No: 71.01.02c.06 Strunz No: 09.ED.15
Locality:

 

Notes:

 

 
   
 


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