Chlormanganokalite Mineral Data

Chlormanganokalite Mineral Data
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General Chlormanganokalite Information

Help on Chemical Formula: Chemical Formula: K4MnCl6
Help on Composition: Composition: Molecular Weight = 424.05 gm
   Potassium  36.88 %  K    44.43 % K2O
   Manganese  12.96 %  Mn   16.73 % MnO
   Chlorine   50.16 %  Cl   50.16 % Cl
                -   %   Cl  -11.32 % -O=Cl2   
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K4Mn2+Cl6
Help on Environment: Environment: Volcanic fumaroles.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1906
Help on Locality: Locality: Vesuvius, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its chemical composition of Cl, Mn, and K (Latin kalium).
Help on Synonym: Synonym: ICSD 24475
  PDF 3-856
 

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Chlormanganokalite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.23973
Help on Cell Dimensions: Cell Dimensions: a = 11.93, c = 14.79, Z = 6; V = 1,822.97 Den(Calc)= 2.32
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.55(1), 2.69(0.8), 5.9(0.5),
 

Physical Properties of Chlormanganokalite

Help on Cleavage: Cleavage: None
Help on Color: Color: Yellow, Light yellow.
Help on Density: Density: 2.31
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: light yellow
 

Optical Properties of Chlormanganokalite

Help on Optical Data: Optical Data: Uniaxial (+), w=1.59, e=1.59, bire=0.0000.
 

Calculated Properties of Chlormanganokalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.22 gm/cc
note: Specific Gravity of Chlormanganokalite =2.32 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000442573
Boson Index = 0.9999557427
Help on Photoelectric: Photoelectric: PEChlormanganokalite = 10.45 barns/electron
U=PEChlormanganokalite x relectron= 23.22 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 509.49 (Gamma Ray American Petroleum Institute Units)
Concentration of Chlormanganokalite per GRapi unit =1,962.73 (PPM)

Estimated Radioactivity from Chlormanganokalite - mild
Specimen
Size
Weight/Volume
(Sphere) *		 Calculated
Activity
Bequerols
(Bq)		 Calculated
Activity
Curies (Ci)		 Estimated
Activity
GR(api)		 Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 9.37 cm 11,175 3.02E-07 509.49 0.17
100 gm / 4.35 cm 1,118 3.02E-08 50.95 0.02
10 gm / 2.02 cm 112 3.02E-09 5.09 0.00
1 gm / 9.37 mm 11 3.02E-10 0.51 0.00
0.1 gm / 4.35 mm 1 3.02E-11 0.05 0.00
0.01 gm / 2.02 mm 0 3.02E-12 0.01 0.00
0.001 gm / 0.94 mm 0 3.02E-13 0.00 0.00

Weight of pure Chlormanganokalite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.32 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
 

Chlormanganokalite Classification
Help on Dana Class: Dana Class: 11.05.04.01 (11)Halide Complexes; Alumino-fluorides
  (11.05)where (A)m B (X)6
  (11.05.04)Dana Group
 
11.05.04.01 Chlormanganokalite K4MnCl6 R 3c 3 2/m
Help on Strunz Class: Strunz Class: 03.CJ.05 03 - HALIDES
  03.C - Complex Halides
  03.CJ -With MX6 complexes; M = Fe, Mn, Cu
 
03.CJ.05 Chlormanganokalite K4MnCl6 R 3c 3 2/m
 
03.CJ.05 Rinneite K3NaFeCl6 R 3c 3 2/m
 

Other Chlormanganokalite Information
Help on References: References: NAME( Emsley91) 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 Chlormanganokalite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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

Chlormanganokalite

K4MnCl6
Dana No: 11.05.04.01 Strunz No: 03.CJ.05
Locality:

 

Notes: