Cobaltkoritnigite Mineral Data

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General Cobaltkoritnigite Information
Chemical Formula:	(Co,Zn)(AsO3OH)·(H2O)
Composition:	Molecular Weight = 218.49 gm
	Zinc       7.48 %  Zn    9.31 % ZnO
	Cobalt    20.23 %  Co   25.72 % CoO
	Arsenic   34.29 %  As   52.60 % As2O5
	Hydrogen   1.38 %  H    12.37 % H2O
	Oxygen    36.61 %  O
	______        ______
	100.00 %      100.00 % = TOTAL OXIDE
Empirical Formula:	Co0.75Zn0.25(AsO3OH)·(H2O)
IMA Status:	Approved IMA 1981
Locality:	Link to MinDat.org Location Data.
Synonym:	Cobaltokoritnigite
	ICSD 32025
	PDF 35-499
Cobaltkoritnigite Image
Images:	Cobaltkoritnigite   Erythrite Comments: Dark purplish cobaltkoritnigite with pink erythrite. Location: Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Cobaltkoritnigite Crystallography
Axial Ratios:	a:b:c =0.5022:1:0.4213
Cell Dimensions:	a = 7.95, b = 15.83, c = 6.67, Z = 8; alpha = 90.9°, beta = 96.6°, gamma = 90° V = 833.74 Den(Calc)= 3.48
Crystal System:	Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
X Ray Diffraction:	By Intensity(I/Io): 7.94(1), 3.14(0.7), 3.82(0.5),
Physical Properties of Cobaltkoritnigite
Cleavage:	[010] Perfect, [100] Good
Color:	Dark pink, Purple red, Purple.
Diaphaniety:	Transparent
Hardness:	2-3 - Gypsum-Calcite
Luster:	Vitreous (Glassy)
Streak:	reddish white
Optical Properties of Cobaltkoritnigite
Gladstone-Dale:	CI calc= -0.029 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1934,KC= 0.188
Optical Data:	Biaxial (+), a=1.646, b=1.668, g=1.705, bire=0.0590, 2V(Calc)=78, 2V(Meas)=78.
Calculated Properties of Cobaltkoritnigite
Electron Density:	relectron=3.30 gm/cc note: rCobaltkoritnigite =3.48 gm/cc.
Fermion Index	Fermion Index = 0.00324 Boson Index = 0.99676
Photoelectric:	PECobaltkoritnigite = 34.15 barns/electron U=PECobaltkoritnigite x relectron= 112.87 barns/cc.
Radioactivity:	GRapi = 0 (Gamma Ray American Petroleum Institute Units) Cobaltkoritnigite is Not Radioactive
Cobaltkoritnigite Classification
Dana Class:	39.1.4.2 (39)Hydrated Acid Phosphates, etc
	(39.1)A+ [HXO4] · x(H2O)
	(39.1.4)Dana Group
	39.1.4.1 Koritnigite ZnHAsO4·(H2O) P1 1
	39.1.4.2 Cobaltkoritnigite (Co,Zn)(AsO3OH)·(H2O) P1 1
Strunz Class:	VII/C.06-10 VII - Phosphates, Arsenates and Vanadates
	VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg
	VII/C.06 - Cobaltkoritnigite - Geigerite series
	VII/C.06-10 Cobaltkoritnigite (Co,Zn)(AsO3OH)·(H2O) P1 1
	VII/C.06-20 Koritnigite ZnHAsO4·(H2O) P1 1
	VII/C.06-30 Geminite Cu2As2O7·3(H2O) P1 or P1 Tri
	VII/C.06-32 Pushcharovskite! Cu(AsO3OH)·1.5(H2O) P1 or P1 Tri
	VII/C.06-35 Yvonite! Cu(AsO3OH)·2(H2O) P1 1
	VII/C.06-37 Rollandite! Cu3(AsO4)2·4(H2O) P nma 2/m 2/m 2/m
	VII/C.06-40 Chudobaite (Mg,Zn)5(AsO3OH)2(AsO4)2·10(H2O) P1 1
	VII/C.06-50 Lindackerite CuCu4(AsO4)2(AsO3OH)2·~9(H2O) P1 1
	VII/C.06-60 Geigerite Mn5(AsO3OH)2(AsO4)2·10(H2O) P1 1
Other Cobaltkoritnigite Information
References:	PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:	Links to other databases for Cobaltkoritnigite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Cobaltkoritnigite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Cobaltkoritnigite : AA Mineral Specimens B & L Fine Minerals Crystal Vaults 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 Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Cobaltkoritnigite Mineral Data : Ask about Cobaltkoritnigite 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 Cobaltkoritnigite Specimen Label here : Cobaltkoritnigite (Co,Zn)(AsO3OH)·(H2O) Dana No: 39.1.4.2 Strunz No: VII/C.06-10 Locality:   Notes: