Gillardite Mineral Data (original) (raw)
General Gillardite Information
Cu3NiCl2(OH)6
Molecular Weight = 422.66 gm
Iron 0.05 % Fe 0.07 % FeO
Cobalt 0.17 % Co 0.21 % CoO
Copper 46.32 % Cu 52.15 % Cu2O
Nickel 12.54 % Ni 15.96 % NiO
Hydrogen 1.43 % H 12.79 % H2O
Chlorine 16.78 % Cl 16.78 % Cl
Oxygen 22.71 % O
______ ______
100.00 % 94.17 % = TOTAL OXIDE
Cu3.08Ni0.9Co0.01Fe2+0.004Cl2(OH)6
Found in a silicified ferruginous gossan. Ni analog of herbertsmithite. Atacamite group.
Approved IMA 2006 (Dana # Added)
132 North deposit, Widgiemooltha, Western Australia, Australia Link to MinDat.org Location Data.
Named for Professor D. Gillard, in recognition of his contributions to the field of inorganic chemistry.
IMA2006-041
Gillardite Image
Gillardite Comments: Dark green druze of gillardite and lighter green gasphite in a complex gossenous matrix. Location: 132 North Mine, Widgiemooltha, Western Australia, Australia.Scale: Specimen Size 3.6 x 1.7 x 2.6 cm. © Minservice |
---|
Gillardite Crystallography
a:c = 1:2.02532
a = 6.8364, c = 13.8459, Z = 3; V = 560.41 Den(Calc)= 3.76
Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3m
By Intensity(I/Io): 5.463(1), 2.755(0.69), 2.257(0.39),2.903(0.19), 4.651(0.16), 2.728(0.14), 1.82(0.13), 4.519(0.11),
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
| | Clissold M E , Leverett P , Williams P A , Hibbs D E , Nickel E H , The Canadian Mineralogist , 45 (2007) p.317-320, The structure of gillardite, the Ni-analogue of herbertsmithite, from, Widgiemooltha, Western Australia, Locality: 132N deposit, Widgiemooltha, Australia | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
Physical Properties of Gillardite
{101} Good
Dark green.
Transparent
Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).
Aggregates - Made of numerous individual crystals or clusters.
Triangular Crystals - Occurs as triangular shaped crystals.
3 - Calcite
Vitreous (Glassy)
green
Optical Properties of Gillardite
CI calc= 0.099 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2226,KC= 0.2471
Ncalc = 1.93
Biaxial (+), a=1.836, b=1.838,
Calculated Properties of Gillardite
Bulk Density (Electron Density)=3.61 gm/cc
note: Specific Gravity of Gillardite =3.76 gm/cc.
Fermion Index = 0.0015392622
Boson Index = 0.9984607378
PEGillardite = 26.58 barns/electron
U=PEGillardite x rElectron Density= 96.03 barns/cc.
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Gillardite is Not Radioactive
Gillardite Classification
10.01.01.03 (10)Oxyhalides and Hydroxyhalides
(10.01)where (A)2 (O,OH)3 Xq
(10.01.01)Atacamite group
10.01.01.01 Atacamite Cu2Cl(OH)3 Pmcn 2/m 2/m 2/m
10.01.01.02 Hibbingite (Fe,Mg)2(OH)3Cl Pnam 2/m 2/m 2/m
10.01.01.03 Gillardite! Cu3NiCl2(OH)6 R 3m 3
10.01.01.04 Haydeeite! Cu3Mg(OH)6Cl2 R 3m 3
03.DA.10c 03 - HALIDES
03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
03.DA -With Cu, etc., without Pb
03.DA.10c Paratacamite (Cu,Zn)2(OH)3Cl R 3 3
03.DA.10c Gillardite! Cu3NiCl2(OH)6 R 3m 3
03.DA.10c Herbertsmithite! Cu3Zn(OH)6Cl2 R 3m 3 2/m
03.DA.10c Kapellasite! Cu3Zn(OH)6Cl2 P 3m1 3 2/m
03.DA.10c Haydeeite! Cu3Mg(OH)6Cl2 R 3m 3
Other Gillardite Information
NAME( AmMin v93:252) PHYS. PROP.(AmMin v93:252, en.scientificcommons.org) OPTIC PROP.(en.scientificcommons.org)
Links to other databases for Gillardite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
Search for Gillardite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Gillardite :
A Bijoux Google Search for Gillardite
Adam's Minerals Google Search for Gillardite
Cape Minerals Google Search for Gillardite
Dakota Matrix Minerals Google Search for Gillardite
Excalibur Mineral Corp. Google Search for Gillardite
Exceptional Minerals Google Search for Gillardite
John Betts Fine Minerals Search for Gillardite
McDougall Minerals Google Search for Gillardite
Mineral News Website Link
Rock and Mineral Shows Google Search for Gillardite
Weinrich Minerals, Inc. Google Search for Gillardite
Ask about Gillardite 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 Espa�ol
Print or Cut-and-Paste your Gillardite Specimen Label here :
Gillardite
Cu3NiCl2(OH)6
Dana No: 10.01.01.03 Strunz No: 03.DA.10c
Locality:
Notes: