Mineralogy Database

Marsturite Mineral Data

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General Marsturite Information

Help on Chemical  Formula: Chemical Formula: NaCaMn3[Si5O14(OH)]
Help on Composition: Composition: Molecular Weight = 609.31 gm
   Sodium      3.77 %  Na    5.09 % Na2O
   Calcium     6.58 %  Ca    9.20 % CaO
   Manganese  27.05 %  Mn   34.93 % MnO
   Silicon    23.05 %  Si   49.31 % SiO2
   Hydrogen    0.17 %  H     1.48 % H2O
   Oxygen     39.39 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCaMn2+3Si5O14(OH)
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Marion Stuart of Bellvue, Idaho, who has been a staunch supporter of the preservation of natural history specimens, particularly those of geological interest.
Help on Name Pronunciation: Name Pronunciation: Marsturite + Pronunciation Say MARSTURITE
 

Marsturite Image

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  Marsturite

Comments: Orange scaly marsturite on matrix.
Location: Molinello Mine, Val Graveglia, Genoa, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Marsturite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.64:1:0.5635
Help on Cell Dimensions: Cell Dimensions: a = 7.7, b = 12.03, c = 6.78, Z = 2; alpha = 85.26°, beta = 94.1°, gamma = 111.04° V = 582.67 Den(Calc)= 3.47
Help on Crystal System: Crystal System: Triclinic Space Group: P1,P 1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.725(1), 2.916(0.9), 2.999(0.8),
 

Physical Properties of Marsturite

Help on Cleavage: Cleavage: {100} Indistinct, {001} Indistinct
Help on Color: Color: White, Light pink.
Help on Density: Density: 3.46
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Marsturite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2003,KPDmeas= 0.2009,KC= 0.2054
Ncalc = 1.71
Help on Optical Data: Optical Data: Biaxial (+), a=1.686, b=1.691, g=1.708, bire=0.0220, 2V(Calc)=58, 2V(Meas)=60. Dispersion r > v weak.
 

Calculated Properties of Marsturite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Marsturite =3.46 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMarsturite = 8.64 barns/electron
U=PEMarsturite x rElectron Density= 29.13 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Marsturite is Not Radioactive
 

Marsturite Classification

Help on  Dana Class: Dana Class: 65.04.01.06 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.04)with chains P=5
  (65.04.01)Rhodonite group
 
65.04.01.01 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
65.04.01.02 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
65.04.01.03 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
65.04.01.04 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
65.04.01.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
65.04.01.06 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
65.04.01.07 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
65.04.01.08 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
Help on  Strunz Class: Strunz Class: 09.DK.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DK -Inosilicates with 5-periodic single chains
 
09.DK.05 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
09.DK.05 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
09.DK.05 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
09.DK.05 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
09.DK.05 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
09.DK.05 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
09.DK.05 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
09.DK.05 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
 

Other Marsturite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Marsturite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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

Marsturite

NaCaMn3[Si5O14(OH)]
Dana No: 65.04.01.06 Strunz No: 09.DK.05
Locality:

 

Notes:

 

 
   
 


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