Mineralogy Database

Lithiomarsturite Mineral Data

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General Lithiomarsturite Information

Help on Chemical  Formula: Chemical Formula: LiCa2Mn2HSi5O15
Help on Composition: Composition: Molecular Weight = 578.40 gm
   Lithium     1.20 %  Li    2.58 % Li2O
   Calcium    13.86 %  Ca   19.39 % CaO
   Manganese  19.00 %  Mn   24.53 % MnO
   Silicon    24.28 %  Si   51.94 % SiO2
   Hydrogen    0.17 %  H     1.56 % H2O
   Oxygen     41.49 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: LiCa2Mn2+2HSi5O15
Help on Environment: Environment: In small vugs within a complex Li-Sn-rich pegmatite
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the lithium analogue of marsturite
Help on Name Pronunciation: Name Pronunciation: Lithiomarsturite + Pronunciation Say LITHIOMARSTURITE
Help on Synonym: Synonym: IMA1988-035

Lithiomarsturite Image

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  Lithiomarsturite   Lithiophosphate

Comments: Tan-brown lithiomarsturite with cream-colored lithiophosphate in matrix.
Location: Foote Mine, Kings Mtn, North Carolina, USA. Scale: 2" x 3".
© Chris Wright / Wrights Rock Shop

Lithiomarsturite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6314:1:0.5615
Help on Cell Dimensions: Cell Dimensions: a = 7.652, b = 12.119, c = 6.805, Z = 2; alpha = 85.41°, beta = 94.42°, gamma = 111.51° V = 583.48 Den(Calc)= 3.29
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.01(1), 2.913(0.9), 3.19(0.9),

Physical Properties of Lithiomarsturite

Help on Cleavage: Cleavage: {001} Good, {100} Good
Help on Color: Color: Yellow brown, Light yellow, Pink brown.
Help on Density: Density: 3.32
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Rhombohedral Crystals - Occurs as well-formed crystals showing rhobohedral crystals.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light brown

Optical Properties of Lithiomarsturite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.059 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.05 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1997,KPDmeas= 0.1979,KC= 0.2103
Ncalc = 1.69 - 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.645, b=1.66, g=1.666, bire=0.0210, 2V(Calc)=64, 2V(Meas)=59.9-64.

Calculated Properties of Lithiomarsturite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Lithiomarsturite =3.29 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PELithiomarsturite = 7.46 barns/electron
U=PELithiomarsturite x rElectron Density= 24.09 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lithiomarsturite is Not Radioactive

Lithiomarsturite Classification

Help on  Dana Class: Dana Class: (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.04)with chains P=5
  (65.04.01)Rhodonite group Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri Lithiomarsturite LiCa2Mn2HSi5O15 P1 1 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 Lithiomarsturite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.75,p409-414,1990) OPTIC PROP.(Am.Min.,Vol.75,p409-414,1990)
Help on See Also: See Also: Links to other databases for Lithiomarsturite :
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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Dana No: Strunz No: 09.DK.05





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