Mineralogy Database

Litidionite Mineral Data

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General Litidionite Information

Help on Chemical  Formula: Chemical Formula: KNaCuSi4O10
Help on Composition: Composition: Molecular Weight = 397.97 gm
   Potassium   9.82 %  K    11.83 % K2O
   Sodium      5.78 %  Na    7.79 % Na2O
   Copper     15.97 %  Cu   17.98 % Cu2O
   Silicon    28.23 %  Si   60.39 % SiO2
   Oxygen     40.20 %  O
             ______        ______ 
             100.00 %       97.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KNaCuSi4O10
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1880
Help on Locality: Locality: Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek "LITHIDIOS" = lapilli, in allusion to the morphology.
Help on Name Pronunciation: Name Pronunciation: Litidionite + Pronunciation Say LITIDIONITE
Help on Synonym: Synonym: ICSD 4362
  PDF 29-1041

Litidionite Image

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Comments: Bright blue crystalline litidionite fragment.
Location: Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Litidionite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2234:1:0.8701
Help on Cell Dimensions: Cell Dimensions: a = 9.8, b = 8.01, c = 6.97, Z = 2; alpha = 114.12°, beta = 99.52°, gamma = 105.59° V = 474.37 Den(Calc)= 2.79
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): 3.37(1), 2.409(0.85), 3.22(0.75),

Physical Properties of Litidionite

Help on Color: Color: Blue, White.
Help on Density: Density: 2.75
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: bluish white

Optical Properties of Litidionite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1941,KPDmeas= 0.204,KC= 0.2057
Ncalc = 1.57 - 1.59
Help on Optical Data: Optical Data: Biaxial (-), a=1.548, b=1.574, , 2V(Meas)=56.

Calculated Properties of Litidionite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.69 gm/cc
note: Specific Gravity of Litidionite =2.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PELitidionite = 9.04 barns/electron
U=PELitidionite x relectron= 24.36 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 138.92 (Gamma Ray American Petroleum Institute Units)
Concentration of Litidionite per GRapi unit = 0.72 (%)

Estimated Radioactivity from Litidionite - barely detectable


Litidionite Classification

Help on  Dana Class: Dana Class: (70)Inosilicate Column or Tube Structures
  (70.01)with columnar silicate units
  (70.01.01)Litidionite group Litidionite KNaCuSi4O10 P1 1 Fenaksite (K,Na,Ca)4(Fe,Fe,Mn)2Si8O20(OH,F) P1 1 Manaksite KNaMnSi4O10 P1 1 Agrellite NaCa2Si4O10F P1 1
Help on  Strunz Class: Strunz Class: 09.DG.07.0 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DG -Inosilicates with 3-periodic single and multiple chains
09.DG.07.0 Litidionite KNaCuSi4O10 P1 1

Other Litidionite 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 Litidionite :
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 (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 09.DG.07.0





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