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Kottigite Mineral Data

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General Kottigite Information

Help on Chemical  Formula: Chemical Formula: Zn3(AsO4)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 618.13 gm
   Zinc      31.74 %  Zn   39.50 % ZnO
   Arsenic   24.24 %  As   37.18 % As2O5
   Hydrogen   2.61 %  H    23.32 % H2O
   Oxygen    41.41 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn3(AsO4)2•8(H2O)
Help on Environment: Environment: Alteration of smaltite and sphalerite. Forms a series with erythrite and annabergite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1850
Help on Locality: Locality: Daniel mine, Scheeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Otto K�ttig (1824-?), chemist of Schneeberg, Saxony, Germany.
Help on Name Pronunciation: Name Pronunciation: Kottigite + Pronunciation Say KOTTIGITE
Help on Synonym: Synonym: Koettigite
 

Kottigite Image

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  Kottigite

Comments: Köttigite crystals on gossanous matrix up to 0.5 cm in length.
Location: Oujela Mine, Mapimi, Durango, Mexico. Scale: Picture size 3 cm.
© John Veevaert

Kottigite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7639:1:0.3548
Help on Cell Dimensions: Cell Dimensions: a = 10.241, b = 13.405, c = 4.757, Z = 2; beta = 105.21° V = 630.17 Den(Calc)= 3.26
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.703(1), 3.224(0.35), 7.954(0.27),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 0 0) ( 0 1 0) ( 2 2 1) ( 2 0 1) ( 1 1 0)

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Physical Properties of Kottigite

Help on Color: Color: Red, Brownish.
Help on Density: Density: 3.33
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Massive - Fibrous - Distinctly fibrous fine-grained forms.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Silky
 

Optical Properties of Kottigite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1974,KPDmeas= 0.1933,KC= 0.2019
Ncalc = 1.66 - 1.67
Help on Optical Data: Optical Data: Biaxial (+), a=1.622, b=1.638, g=1.671, bire=0.0490, 2V(Calc)=72, 2V(Meas)=74.
 

Calculated Properties of Kottigite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.16 gm/cc
note: Specific Gravity of Kottigite =3.26 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKottigite = 31.88 barns/electron
U=PEKottigite x rElectron Density= 100.89 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kottigite is Not Radioactive
 

Kottigite Classification

Help on  Dana Class: Dana Class: 40.03.06.05 (40)Hydrated Phosphates, etc
  (40.03)where (A++)3 (XO4)2 � x(H2O)
  (40.03.06)Vivianite Group
 
40.03.06.01 Vivianite Fe3(PO4)2•8(H2O) C 2/m 2/m
 
40.03.06.02 Baricite (Mg,Fe)3(PO4)2•8(H2O) C 2/m 2/m
 
40.03.06.03 Erythrite Co3(AsO4)2•8(H2O) I2/m 2/m
 
40.03.06.04 Annabergite Ni3(AsO4)2•8(H2O) I2/m 2/m
 
40.03.06.05 Kottigite Zn3(AsO4)2•8(H2O) C 2/m 2/m
 
40.03.06.06 Parasymplesite Fe3(AsO4)2•8(H2O) C 2/m 2/m
 
40.03.06.07 Hornesite Mg3(AsO4)2•8(H2O) I2/m 2/m
 
40.03.06.08 Arupite (Ni,Fe)3(PO4)2•8(H2O) I2/m 2/m
 
40.03.06.09 Pakhomovskyite! Co3(PO4)2•8(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.CE.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CE -With only medium-sized cations, RO4:H2O � 1:2.5
 
08.CE.40 Arupite (Ni,Fe)3(PO4)2•8(H2O) I2/m 2/m
 
08.CE.40 Annabergite Ni3(AsO4)2•8(H2O) I2/m 2/m
 
08.CE.40 Baricite (Mg,Fe)3(PO4)2•8(H2O) C 2/m 2/m
 
08.CE.40 Erythrite Co3(AsO4)2•8(H2O) I2/m 2/m
 
08.CE.40 Ferrisymplesite Fe3(AsO4)2(OH)3•5(H2O) None
 
08.CE.40 Hornesite Mg3(AsO4)2•8(H2O) I2/m 2/m
 
08.CE.40 Kottigite Zn3(AsO4)2•8(H2O) C 2/m 2/m
 
08.CE.40 Manganohornesite (Mn,Mg)3(AsO4)2•8(H2O) P 21/c 2/m
 
08.CE.40 Parasymplesite Fe3(AsO4)2•8(H2O) C 2/m 2/m
 
08.CE.40 Vivianite Fe3(PO4)2•8(H2O) C 2/m 2/m
 
08.CE.40 Pakhomovskyite! Co3(PO4)2•8(H2O) C 2/m 2/m
 

Other Kottigite Information

Help on References: References: NAME( Athena) 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 Kottigite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Kottigite

Zn3(AsO4)2•8(H2O)
Dana No: 40.03.06.05 Strunz No: 08.CE.40
Locality:

 

Notes:

 

 
   
 


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