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Manasseite Mineral Data

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General Manasseite Information

Help on Chemical  Formula: Chemical Formula: Mg6Al2(CO3)(OH)16•4(H2O)
Help on Composition: Composition: Molecular Weight = 603.98 gm
   Magnesium  24.14 %  Mg   40.04 % MgO
   Aluminum    8.93 %  Al   16.88 % Al2O3
   Hydrogen    4.01 %  H    35.79 % H2O
   Carbon      1.99 %  C     7.29 % CO2
   Oxygen     60.93 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg6Al2(CO3)(OH)16•4(H2O)
Help on Environment: Environment: In iron ore skarns.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1941
Help on Locality: Locality: Kongsberg, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ernesto Manasse (1875-1922), mineralogist of Florence, Italy.
Help on Name Pronunciation: Name Pronunciation: Manasseite + Pronunciation Say MANASSEITE
Help on Synonym: Synonym: ICSD 82874
  PDF 20658
 

Manasseite Image

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  Manasseite

Comments: Brownish yellow crystal of manasseite on dolomite matrix.
Location: Jacupiranga mine, Jacupiranga, Sao Paolo, Brazil. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Manasseite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.50392
Help on Cell Dimensions: Cell Dimensions: a = 6.12, c = 15.324, Z = 1; V = 497.06 Den(Calc)= 2.02
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.67(1), 1.84(0.6), 2.6(0.5),
 

Physical Properties of Manasseite

Help on Cleavage: Cleavage: {0001} Perfect
Help on Color: Color: Bluish white, Brownish white, Grayish, White, Light bluish.
Help on Density: Density: 2.05
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Pearly
Help on Streak: Streak: white
 

Optical Properties of Manasseite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.015 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2559,KPDmeas= 0.2522,KC= 0.2521
Ncalc = 1.51 - 1.52
Help on Optical Data: Optical Data: Uniaxial (-), e=1.51, w=1.524, bire=0.0140.
 

Calculated Properties of Manasseite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.12 gm/cc
note: Specific Gravity of Manasseite =2.05 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEManasseite = 0.92 barns/electron
U=PEManasseite x rElectron Density= 1.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Manasseite is Not Radioactive
 

Manasseite Classification

Help on  Dana Class: Dana Class: 16b.06.01.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.06)Dana Type
  (16b.06.01)Sjorgrenite-Hydrotalcite Group (Sojogrenite Subgroup:Hexagonal)
 
16b.06.01.01 Manasseite Mg6Al2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
16b.06.01.02 Barbertonite Mg6Cr2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
16b.06.01.03 Sjogrenite Mg6Fe2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
16b.06.01.04 Zaccagnaite! Zn4Al2(OH)12(CO3)•3(H2O) P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 05.DA.45 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
 
05.DA.45 Brugnatellite Mg6Fe(CO3)(OH)13•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Barbertonite Mg6Cr2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Chlormagaluminite (Mg,Fe)4Al2(OH)12(Cl2,CO3)•2(H2O) P 6/mcm, P 6cm, P 6c2 Hex
 
05.DA.45 Zaccagnaite! Zn4Al2(OH)12(CO3)•3(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Manasseite Mg6Al2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 
05.DA.45 Sjogrenite Mg6Fe2(CO3)(OH)16•4(H2O) P 63/mmc 6/m 2/m 2/m
 

Other Manasseite Information

Help on References: References: NAME( Dana8) 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 Manasseite :
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

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

Manasseite

Mg6Al2(CO3)(OH)16•4(H2O)
Dana No: 16b.06.01.01 Strunz No: 05.DA.45
Locality:

 

Notes:

 

 
   
 


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