Chlormanganokalite Mineral Data

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General Chlormanganokalite Information
Chemical Formula:	K4MnCl6
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
Empirical Formula:	K4Mn2+Cl6
Environment:	Volcanic fumaroles.
IMA Status:	Valid Species (Pre-IMA) 1906
Locality:	Vesuvius, Italy. Link to MinDat.org Location Data.
Name Origin:	Named after its chemical composition of Cl, Mn, and K (Latin kalium).
Synonym:	ICSD 24475
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Chlormanganokalite Crystallography
Axial Ratios:	a:c = 1:1.23973
Cell Dimensions:	a = 11.93, c = 14.79, Z = 6; V = 1,822.97 Den(Calc)= 2.32
Crystal System:	Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c
X Ray Diffraction:	By Intensity(I/Io): 2.55(1), 2.69(0.8), 5.9(0.5),
Physical Properties of Chlormanganokalite
Cleavage:	None
Color:	Yellow, Light yellow.
Density:	2.31
Diaphaniety:	Transparent
Fracture:	Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Hardness:	2.5 - Finger Nail
Luster:	Vitreous - Greasy
Streak:	light yellow
Optical Properties of Chlormanganokalite
Gladstone-Dale:	CI meas= 0.083 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.087 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2543,KPDmeas= 0.2554,KC= 0.2785
Optical Data:	Uniaxial (+), w=1.59, e=1.59, bire=0.0000.
Calculated Properties of Chlormanganokalite
Electron Density:	relectron=2.21 gm/cc note: rChlormanganokalite =2.31 gm/cc.
Fermion Index	Fermion Index = 0.00004 Boson Index = 0.99996
Photoelectric:	PEChlormanganokalite = 10.45 barns/electron U=PEChlormanganokalite x relectron= 23.12 barns/cc.
Radioactivity:	GRapi = 509.49 (Gamma Ray American Petroleum Institute Units) 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 / 9.39 cm 11,175 3.02E-07 509.49 0.17 100 gm / 4.36 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 / 9.39 mm 11 3.02E-10 0.51 0.00 0.1 gm / 4.36 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 2.31 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
Dana Class:	11.5.4.1 (11)Halide Complexes; Alumino-fluorides
	(11.5)where (A)m B (X)6
	(11.5.4)Dana Group
	11.5.4.1 Chlormanganokalite K4MnCl6 R 3c 3 2/m
Strunz Class:	III/C.06-20 III - Halogenides
	III/C - Double halogenides with water, Chlorides
	III/C.06 - Rinneite - Kremersite series
	III/C.06-10 Rinneite K3NaFeCl6 R 3c 3 2/m
	III/C.06-20 Chlormanganokalite K4MnCl6 R 3c 3 2/m
Other Chlormanganokalite Information
References:	NAME( Emsley91) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
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 (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST Search for Chlormanganokalite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Chlormanganokalite : AA Mineral Specimens B & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals T G Fine Minerals Wrights Rock Shop Translate Chlormanganokalite Mineral Data : Ask about Chlormanganokalite here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español Print or Cut-and-Paste your Chlormanganokalite Specimen Label here : Chlormanganokalite K4MnCl6 Dana No: 11.5.4.1 Strunz No: III/C.06-20 Locality:   Notes: