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Gillardite

A valid IMA mineral species

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Photos of Gillardite (43)

Gillardite Gallery Search Photos of Gillardite

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Gillardite

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite, etc.

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite, etc.

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite, etc.

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite, etc.

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Gillardite, etc.

132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

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About GillarditeHide

Robert D. Gillard

Formula:

Cu₃Ni(OH)₆Cl₂

Colour:

Dark green

Lustre:

Vitreous

Hardness:

Specific Gravity:

3.76 (Calculated)

Crystal System:

Trigonal

Member of:

Atacamite Group

Name:

Named in 2007 by David M. Colchester, Peter Leverett, Meagan E. Clissold, Peter A. Williams, David E. Hibbs and Ernest H. Nickel in honour of Robert D. Gillard (23 August, 1936, London, England - ) professor, Department of Chemistry, Cardiff University, Wales, in recognition of his contributions to the field of inorganic chemistry.

Type Locality:

ⓘ 132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

Dimorph of:

Paratacamite-(Ni)

Isostructural with:

Herbertsmithite

Atacamite Group.
Closely related to paratacamite.

The Ni analogue of herbertsmithite and leverettite.

At least some of the gillardite from the type locality was originally considered to be "Ni-bearing paratacamite".

Unique IdentifiersHide

Mindat ID:

31405

Long-form identifier:

mindat:1:1:31405:1

GUID
(UUID V4):

d1128e60-0e70-4d03-9e68-96d6a74d4f0a

IMA Classification of GillarditeHide

IMA status:

Approved

IMA Formula:

Cu₃NiCl₂(OH)₆

Approval year:

2007

First published:

2007

Classification of GillarditeHide

Strunz-mindat (2024):

3.DA.10c

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb

Dana 8th ed.:

10.1.2.4

10 : OXYHALIDES AND HYDROXYHALIDES
1 : A₂(O,OH)₃X_q

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Gla	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of GillarditeHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Dark green

Comment:

Larger crystals are nearly black.

Streak:

Green

Hardness:

3 on Mohs scale

Tenacity:

Brittle

Cleavage:

Distinct/Good
On {101}.

Parting:

None observed.

Fracture:

Irregular/Uneven, Splintery

Density:

3.76 g/cm³ (Calculated)

Optical Data of GillarditeHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.836(2) n_ε = 1.838(2)

Max Birefringence:

δ = 0.002

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Very High

Dispersion:

None observed.

Pleochroism:

Not Visible

Chemistry of GillarditeHide

Mindat Formula:

Cu₃Ni(OH)₆Cl₂

Elements listed:

Cl, Cu, H, Ni, O - search for minerals with similar chemistry

Crystallography of GillarditeHide

Crystal System:

Trigonal

Class (H-M):

3m (3 2/m) - Hexagonal Scalenohedral

Space Group:

R3m

Cell Parameters:

a = 6.8364 Å, c = 13.8459 Å

Ratio:

a:c = 1 : 2.025

Unit Cell V:

560.41 Å³ (Calculated from Unit Cell)

Morphology:

Equant, rhombohedral crystals showing the forms {101}, {021}, {001} and {100} (probable).

Twinning:

None observed.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0006139	Gillardite	Clissold M E, Leverett P, Williams P A, Hibbs D E, Nickel E H (2007) The structure of gillardite, the Ni-analogue of herbertsmithite, from Widgiemooltha, Western Australia The Canadian Mineralogist 45 317-320		2007	132N deposit, Widgiemooltha, Australia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Gillardite'
loop_
_publ_author_name
'Clissold M E'
'Leverett P'
'Williams P A'
'Hibbs D E'
'Nickel E H'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 45 
_journal_year 2007
_journal_page_first 317
_journal_page_last 320
_publ_section_title
;
 The structure of gillardite, the Ni-analogue of herbertsmithite, from
 Widgiemooltha, Western Australia
;
_database_code_amcsd 0006139
_chemical_compound_source '132N deposit, Widgiemooltha, Australia'
_chemical_formula_sum 'Cu3.081 Ni.903 Co.012 Fe.004 Cl2 O6 H6'
_cell_length_a 6.8364
_cell_length_b 6.8364
_cell_length_c 13.8459
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 560.411
_exptl_crystal_density_diffrn      3.757
_symmetry_space_group_name_H-M 'R -3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Cu2   0.50000   0.00000   0.00000   1.00000   0.00540
Ni1   0.00000   0.00000   0.50000   0.90300   0.00430
Cu1   0.00000   0.00000   0.50000   0.08100   0.00430
Co1   0.00000   0.00000   0.50000   0.01200   0.00430
Fe1   0.00000   0.00000   0.50000   0.00400   0.00430
Cl   0.00000   0.00000   0.19330   1.00000   0.00730
O   0.20700  -0.20700   0.06240   1.00000   0.00730
H   0.14400  -0.14400   0.08580   1.00000   0.02200
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Cu2 0.00530 0.00490 0.00580 0.00245 0.00055 0.00110
Ni1 0.00490 0.00490 0.00310 0.00245 0.00000 0.00000
Cu1 0.00490 0.00490 0.00310 0.00245 0.00000 0.00000
Co1 0.00490 0.00490 0.00310 0.00245 0.00000 0.00000
Fe1 0.00490 0.00490 0.00310 0.00245 0.00000 0.00000
Cl 0.00800 0.00800 0.00590 0.00400 0.00000 0.00000
O 0.00670 0.00670 0.00870 0.00340 0.00110 -0.00110

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
5.463 Å	(100)
4.651 Å	(16)
4.519 Å	(11)
2.903 Å	(19)
2.755 Å	(69)
2.728 Å	(14)
2.257 Å	(39)
1.820 Å	(13)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]
47g : [Halogen-bearing surface weathering minerals]
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere	<0.6
50 : Coal and/or oil shale minerals	<0.36

Type Occurrence of GillarditeHide

Type Locality:

ⓘ 132 North Ni Mine, Widgiemooltha, Coolgardie Shire, Western Australia, Australia

General Appearance of Type Material:

Aggregates of equant, rhombohedral crystals up to 0.5 mm.

Place of Conservation of Type Material:

Gartrell Collection, Department of Earth and Planetary Sciences, Western Australian Museum, Perth Cultural Centre, Perth, Australia, number 8774.

Geological Setting of Type Material:

Silicified ferruginous gossan.

Associated Minerals at Type Locality:

Clinoatacamite

Synonyms of GillarditeHide

IMA2006-041

Other Language Names for GillarditeHide

Simplified Chinese:氯羟镍铜石

Relationship of Gillardite to other SpeciesHide

Member of:

Atacamite Group

Other Members of this group:

Atacamite	Cu₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
Botallackite	Cu₂(OH)₃Cl	Mon. 2/m : P2₁/m
Clinoatacamite	Cu₂(OH)₃Cl	Mon. 2/m
Haydeeite	Cu₃Mg(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
Herbertsmithite	Cu₃Zn(OH)₆Cl₂	Trig. 3m (3 2/m) : R3m
Hibbingite	Fe²⁺₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
Iyoite	MnCuCl(OH)₃	Mon. 2/m : P2₁/m
Kapellasite	Cu₃Zn(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
Kempite	Mn²⁺₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
Leverettite	Cu₃Co(OH)₆Cl₂	Trig. 3 : R3
Misakiite	Cu₃Mn(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
Paratacamite	Cu₃(Cu,Zn)(OH)₆Cl₂	Trig. 3 : R3
Paratacamite-(Mg)	Cu₃(Mg,Cu)(OH)₆Cl₂	Trig. 3 : R3
Paratacamite-(Ni)	Cu₃(Ni,Cu)(OH)₆Cl₂	Trig. 3 : R3
Tondiite	Cu₃Mg(OH)₆Cl₂	Trig. 3m (3 2/m) : R3m
Unnamed (Cu-Zn Chloride Hydroxide)	CuZnCl(OH)₃	Mon. 2/m : P2₁/m

Common AssociatesHide

Associated Minerals Based on Photo Data:

31 photos of Gillardite associated with Gaspéite	NiCO₃
11 photos of Gillardite associated with Gypsum	CaSO₄ · 2H₂O
5 photos of Gillardite associated with Hydrohonessite	(Ni_1-xFe³⁺_x)(OH)₂(SO₄)_x/2 · nH₂O
2 photos of Gillardite associated with Quartz	SiO₂
1 photo of Gillardite associated with Widgiemoolthalite	Ni₅(CO₃)₄(OH)₂ · 5H₂O
1 photo of Gillardite associated with Magnesite	MgCO₃
1 photo of Gillardite associated with Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

Related Minerals - Strunz-mindat Grouping Hide

3.DA.	Centennialite	CaCu₃Cl₂(OH)₆ · nH₂O (n ~ 0.7)	Trig. 3m (3 2/m) : P3m1
3.DA.	Muonionalustaite	Ni₃(OH)₄Cl₂ · 4H₂O	Mon. 2/m : B2/m
3.DA.	Parahibbingite	Fe₂(OH)₃Cl	Trig. 3m (3 2/m) : R3m
3.DA.	Bounahasite	Cu⁺Cu²⁺₂(OH)₃Cl₂	Mon. 2/m
3.DA.05	Melanothallite	Cu₂Cl₂O	Orth. mmm (2/m 2/m 2/m) : Fddd
3.DA.10a	Atacamite	Cu₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10b	Botallackite	Cu₂(OH)₃Cl	Mon. 2/m : P2₁/m
3.DA.10b	Clinoatacamite	Cu₂(OH)₃Cl	Mon. 2/m
3.DA.10a	Hibbingite	Fe²⁺₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10a	Kempite	Mn²⁺₂(OH)₃Cl	Orth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10c	Kuliginite	Fe₃Mg(OH)₆Cl₂	Trig. 3 : R3
3.DA.10c	Paratacamite	Cu₃(Cu,Zn)(OH)₆Cl₂	Trig. 3 : R3
3.DA.10b	Belloite	Cu(OH)Cl	Mon. 2/m : P2₁/b
3.DA.10c	Herbertsmithite	Cu₃Zn(OH)₆Cl₂	Trig. 3m (3 2/m) : R3m
3.DA.10c	Kapellasite	Cu₃Zn(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
3.DA.10c	Haydeeite	Cu₃Mg(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
3.DA.10c	Leverettite	Cu₃Co(OH)₆Cl₂	Trig. 3 : R3
3.DA.10c	Paratacamite-(Ni)	Cu₃(Ni,Cu)(OH)₆Cl₂	Trig. 3 : R3
3.DA.10c	Tondiite	Cu₃Mg(OH)₆Cl₂	Trig. 3m (3 2/m) : R3m
3.DA.10c	Misakiite	Cu₃Mn(OH)₆Cl₂	Trig. 3m (3 2/m) : P3m1
3.DA.10b	Iyoite	MnCuCl(OH)₃	Mon. 2/m : P2₁/m
3.DA.10b	Unnamed (Cu-Zn Chloride Hydroxide)	CuZnCl(OH)₃	Mon. 2/m : P2₁/m
3.DA.15	Claringbullite	Cu₄ClF(OH)₆	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
3.DA.15	Barlowite	Cu₄BrF(OH)₆	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
3.DA.20	Simonkolleite	Zn₅Cl₂(OH)₈ · H₂O	Trig. 3m (3 2/m) : P3m1
3.DA.25	Buttgenbachite	Cu₁₉(NO₃)₂(OH)₃₂Cl₄ · 2H₂O	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
3.DA.25	Connellite	Cu₁₉(SO₄)(OH)₃₂Cl₄ · 3H₂O	Hex. 6 m2 : P6₂c
3.DA.30	Abhurite	Sn₂₁Cl₁₆(OH)₁₄O₆	Trig. 3 2 : R3 2
3.DA.35	Ponomarevite	K₄Cu₄Cl₁₀O	Mon. 2/m : B2/b
3.DA.40	Anthonyite	Cu(OH,Cl)₂ · 3H₂O	Mon. 2/m
3.DA.40	Calumetite	CaCu₄(OH)₈Cl₂ · 3.5H₂O	Orth. mmm (2/m 2/m 2/m) : Cmcm
3.DA.45	Khaidarkanite	Cu₄Al₃(OH)₁₄F₃ · 2H₂O	Mon. 2/m : B2/m
3.DA.50	Bobkingite	Cu₅Cl₂(OH)₈ · 2H₂O	Mon. 2/m : B2/m
3.DA.55	Avdoninite	K₂Cu₅(OH)₄Cl₈ · H₂O	Mon. 2/m : P2₁/b
3.DA.60	Droninoite	Ni₆Fe³⁺₂(OH)₁₆Cl₂ · 4H₂O	Trig. 3m (3 2/m) : R3m
3.DA.70	Chrysothallite	K₆Cu₆Tl³⁺Cl₁₇(OH)₄ · H₂O	Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DA.70	Dioskouriite	CaCu₄Cl₆(OH)₄ · 4H₂O	Mon. 2/m : P2₁/b
3.DA.75	Feodosiyite	Cu₁₁Mg₂Cl₁₈(OH)₈ · 16H₂O	Mon. 2/m : P2₁/b
3.DA.80	Romanorlovite	K₈Cu₆Cl₁₇(OH)₃	Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm

Fluorescence of GillarditeHide

In UV light:

Not fluorescent.

Other InformationHide

Thermal Behaviour:

The mineral decomposes with loss of water between 150 and 300°C.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for GillarditeHide

mindat.org URL:

https://www.mindat.org/min-31405.html
Please feel free to link to this page.

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External Links:

Look for Gillardite on Webmineral

Look for Gillardite on Wikipedia

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for GillarditeHide

Reference List:

Colchester, D.M., Leverett, P., Clissold, M.E., Williams, P.A., Hibbs, D.E., Nickel E.H. (2007): Gillardite, CuNiCl2(OH)6, a new mineral from the 132 North deposit, Widgiemooltha, Western Australia. Australian Journal of Mineralogy: 13(1): 15-17.

Clissold, M.E., Leverett, P., Williams, P.A., Hibbs, D.E. Nickel, E.H. (2007): The structure of gillardite, the Ni-analog of herbertsmithite, from Widgiemooltha, Western Australia. The Canadian Mineralogist: 45: 317-330. [abstr. Am. Min. 93, 252 (2008)]

Li, Y.S., Zhang, Q.M. (2013) Structure and magnetism of S = 1/2 kagome antiferromagnets NiCu3(OH)6Cl2 and CoCu3(OH)6Cl2. Journal of Physics: Condensed Matter: 25: 0260.

Sciberras, M.J., Leverett, P., Williams, P.A., Schlüter, J., Malcherek, T., Welch, M.D., Downes, P.J., Hibbs, D.E., Kampf, A.R. (2017): Structural and compositional variations of basic Cu(II) chlorides in the herbertsmithite and gillardite structure field. Mineralogical Magazine, 81, 123-134.

(2023) Gillardite. Handbook of Mineralogy. Mineralogical Society of America

Localities for GillarditeHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Australia (TL)
Western Australia Coolgardie Shire Widgiemooltha ⓘ 132 North Ni Mine (TL)	Colchester et al. (2007) +1 other reference
Menzies Shire Menangina Station ⓘ Carr Boyd Rocks Ni mine	Sciberras et al. (2013)

Germany
Saxony-Anhalt Bernburg ⓘ Gröna Mine	Witzke (2012)

Gillardite

About GillarditeHide

Unique IdentifiersHide

IMA Classification of GillarditeHide

Classification of GillarditeHide

Mineral SymbolsHide

Physical Properties of GillarditeHide

Optical Data of GillarditeHide

Chemistry of GillarditeHide

Crystallography of GillarditeHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of GillarditeHide

Synonyms of GillarditeHide

Other Language Names for GillarditeHide

Relationship of Gillardite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Fluorescence of GillarditeHide

Other InformationHide

Internet Links for GillarditeHide

References for GillarditeHide

Localities for GillarditeHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide