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Vendidaite

A valid IMA mineral species

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Photos of Vendidaite (18)

Vendidaite Gallery Search Photos of Vendidaite

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Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Vendidaite

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

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About VendidaiteHide

the pit

La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

Formula:

Al₂(SO₄)(OH)₃Cl · 6H₂O

Colour:

Colorless

Lustre:

Vitreous

Hardness:

2 - 2½

Specific Gravity:

1.97

Crystal System:

Monoclinic

Name:

For the type locality of La Vendida Mine, Chile.

Type Locality:

ⓘ La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

This page provides mineralogical data about Vendidaite.

Unique IdentifiersHide

Mindat ID:

43854

Long-form identifier:

mindat:1:1:43854:6

GUID
(UUID V4):

b5d492a5-16cf-44ac-a805-310d835b7ab4

Classification of VendidaiteHide

IMA status:

Approved

First published:

2013

Strunz-mindat (2023):

7.DC.55

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H₂O
C : With only medium-sized cations; chains of edge-sharing octahedra

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
Ven	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 VendidaiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Colorless

Streak:

White

Hardness:

2 - 2½ on Mohs scale

Hardness Data:

Estimated

Tenacity:

Brittle

Cleavage:

Perfect
on (010)

Density:

1.97(1) g/cm³ (Measured) 1.974 g/cm³ (Calculated)

Optical Data of VendidaiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.522(2) n_β = 1.524(2) n_γ = 1.527(2)

2V:

Calculated: 79°

Max Birefringence:

δ = 0.005

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

Surface Relief:

Low

Dispersion:

None.

Optical Extinction:

Z = b; X and Y lie in the ac plane.

Chemical Properties of VendidaiteHide

Formula:

Al₂(SO₄)(OH)₃Cl · 6H₂O

Elements listed:

Al, Cl, H, O, S - search for minerals with similar chemistry

Crystallography of VendidaiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/b

Setting:

C2/c

Cell Parameters:

a = 11.9246(16) Å, b = 16.134(2) Å, c = 7.4573(9) Å
β = 125.815(2)°

Ratio:

a:b:c = 0.739 : 1 : 0.462

Unit Cell V:

1,163.43 Å³ (Calculated from Unit Cell)

Morphology:

Platy crystals flattened on (010) with forms {010} (major), and {100}, {001}, and {101} (minor).

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)
0020045	Vendidaite	Chukanov N V, Krivovichev S V, Chernyatieva A P (2013) Vendidaite, Al2(SO4)(OH)3Cl6H2O, a new mineral from La Vendida copper mine, Antofagasta region, Chile* The Canadian Mineralogist 51 559-568		2013	La Vendida copper mine, Antofagasta region, Chile	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Vendidaite'
loop_
_publ_author_name
'Chukanov N V'
'Krivovichev S V'
'Chernyatieva A P'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 51 
_journal_year 2013
_journal_page_first 559
_journal_page_last 568
_publ_section_title
;
 Vendidaite, Al2(SO4)(OH)3Cl*6H2O, a new mineral from La Vendida copper mine,
 Antofagasta region, Chile
;
_database_code_amcsd 0020045
_chemical_compound_source 'La Vendida copper mine, Antofagasta region, Chile'
_chemical_formula_sum '(Al1.96 Fe.04) S Cl O13 H15'
_cell_length_a 11.9246
_cell_length_b 16.134
_cell_length_c 7.4573
_cell_angle_alpha 90
_cell_angle_beta 125.815
_cell_angle_gamma 90
_cell_volume 1163.431
_exptl_crystal_density_diffrn      1.974
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-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
Al   0.31915  -0.17116   0.60126   0.98000   0.01191
Fe3+   0.31915  -0.17116   0.60126   0.02000   0.01191
S   0.00000   0.10237   0.25000   1.00000   0.01429
Cl   0.50000   0.06935   0.75000   1.00000   0.02098
O-h1   0.35676  -0.27909   0.56550   1.00000   0.01480
Ow2   0.24890  -0.06937   0.62790   1.00000   0.01750
Ow3   0.34579  -0.19724   0.87920   1.00000   0.02080
O-h4   0.50000  -0.13153   0.75000   1.00000   0.01560
O5   0.03589   0.15476   0.44000   1.00000   0.02340
Ow6   0.28253  -0.12493   0.33280   1.00000   0.02020
O7   0.11995   0.05040   0.31530   1.00000   0.02580
H1   0.20800  -0.03150   0.51700   1.00000   0.05500
H2   0.38800  -0.24960   0.94800   1.00000   0.04400
H3   0.50000  -0.08400   0.75000   1.00000   0.02800
H4   0.39300  -0.16710   0.97000   1.00000   0.05400
H5   0.20100  -0.12620   0.20600   1.00000   0.04500
H6   0.34900  -0.11000   0.32100   1.00000   0.07100
H7   0.41400  -0.29350   0.57300   1.00000   0.05800
H8   0.20700  -0.06900   0.68400   1.00000   0.06500
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
Al 0.01010 0.01417 0.01160 -0.00024 0.00643 -0.00004
Fe3+ 0.01010 0.01417 0.01160 -0.00024 0.00643 -0.00004
S 0.01340 0.01740 0.01270 0.00000 0.00799 0.00000
Cl 0.02240 0.02120 0.02310 0.00000 0.01540 0.00000
O-h1 0.01080 0.01660 0.01760 0.00040 0.00860 -0.00120
Ow2 0.02010 0.01730 0.02010 0.00390 0.01450 0.00280
Ow3 0.02660 0.01940 0.01540 -0.00070 0.01170 0.00040
O-h4 0.01220 0.01380 0.01850 0.00000 0.00770 0.00000
O5 0.02240 0.02740 0.01780 -0.00390 0.01040 -0.00820
Ow6 0.01590 0.03140 0.01320 -0.00280 0.00840 0.00310
O7 0.02620 0.03130 0.02910 0.01330 0.02130 0.01380

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
6.78 Å	(59)
4.849 Å	(94)
4.366 Å	(80)
4.030 Å	(75)
3.855 Å	(100)
3.745 Å	(43)
2.764 Å	(45)
2.435 Å	(52)

Comments:

La Vendida Mine, Antofagasta, Chile. Data from the type description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
47g : [Halogen-bearing surface weathering minerals]

Type Occurrence of VendidaiteHide

Type Locality:

ⓘ La Vendida Mine, Sierra Gorda, Antofagasta Province, Antofagasta, Chile

General Appearance of Type Material:

Platy crystals up to 0.01 × 0.3 × 0.3 mm.

Place of Conservation of Type Material:

Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4335/1.

Geological Setting of Type Material:

Secondary mineral occurring in thin fissures in strongly altered dacitic-andesitic volcanic breccias.

Associated Minerals at Type Locality:

Magnesioaubertite	Kaolinite	Halloysite	Eriochalcite	Belloite
Aubertite	Alunite

Synonyms of VendidaiteHide

IMA2012-089

Common AssociatesHide

Associated Minerals Based on Photo Data:

2 photos of Vendidaite associated with Eriochalcite	CuCl₂ · 2H₂O
2 photos of Vendidaite associated with Riotintoite	Al(SO₄)(OH) · 3H₂O

Related Minerals - Strunz-mindat Grouping Hide

7.DC.05	Aluminite	Al₂(SO₄)(OH)₄ · 7H₂O	Mon. 2/m : P2₁/b
7.DC.05	Meta-aluminite	Al₂(SO₄)(OH)₄ · 5H₂O	Mon. 2/m
7.DC.10	Butlerite	Fe³⁺(SO₄)(OH) · 2H₂O	Mon. 2/m : P2₁/m
7.DC.10	Parabutlerite	Fe³⁺(SO₄)(OH) · 2H₂O	Orth. mmm (2/m 2/m 2/m)
7.DC.15	Fibroferrite	Fe³⁺(SO₄)(OH) · 5H₂O	Trig. 3 : R3
7.DC.20	Xitieshanite	Fe³⁺(SO₄)Cl · 6H₂O	Mon. 2/m : P2₁/b
7.DC.25	Botryogen	MgFe³⁺(SO₄)₂(OH) · 7H₂O	Mon. 2/m
7.DC.25	Zincobotryogen	(Zn,Mg,Mn²⁺)Fe³⁺(SO₄)₂(OH) · 7H₂O	Mon. 2/m
7.DC.30	Chaidamuite	ZnFe³⁺(SO₄)₂(OH) · 4H₂O	Tric. 1 : P1
7.DC.30	Guildite	CuFe³⁺(SO₄)₂(OH) · 4H₂O	Mon. 2/m : P2₁/m
7.DC.40	Pauladamsite	Cu₄(SeO₃)(SO₄)(OH)₄ · 2H₂O	Tric. 1 : P1
7.DC.45	Riotintoite	Al(SO₄)(OH) · 3H₂O	Tric. 1 : P1
7.DC.50	Thorneite	Pb₆(Te⁶⁺₂O₁₀)(CO₃)Cl₂(H₂O)	Mon. 2/m : B2/b

Other InformationHide

IR Spectrum:

The IR spectrum is unique and can be used as a reliable diagnostic tool.

Notes:

Insoluble in water. Dissolves slowly in warm 20% HCl.

Health Risks:

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

References for VendidaiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Chukanov, N.V., Krivovichev, S.V., Chernyatieva, A.P., Möhn, G., Pekov, I.V., Belakovskiy, D.I., Van, K.V. Lorenz, J.A. (2013) Vendidaite, IMA 2012-089. CNMNC Newsletter No. 16, August 2013, page 2697. Mineralogical Magazine: 77: 2695-2709.

Chukanov, N.V., Krivovichev, S.V., Chernyatieva, A.P., Mohn, G., Pekov, I.V., Belakovskiy, D.I., Van, K.V., Lorenz, J.A. (2013) Vendidaite, Al2(SO4)(OH)3Cl·6H2O, a new mineral from La vendida copper mine, Antofagasta Region, Chile. The Canadian Mineralogist: 51: 559-568.

Internet Links for VendidaiteHide

mindat.org URL:

https://www.mindat.org/min-43854.html
Please feel free to link to this page.

Search Engines:

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External Links:

Look for Vendidaite on Webmineral

Look for Vendidaite on Wikipedia

Look for Vendidaite on Mineralien Atlas

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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Localities for VendidaiteHide

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.

Chile (TL)

Antofagasta

Antofagasta Province

Sierra Gorda

ⓘ La Vendida Mine (TL)

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Vendidaite

About VendidaiteHide

Unique IdentifiersHide

Classification of VendidaiteHide

Mineral SymbolsHide

Physical Properties of VendidaiteHide

Optical Data of VendidaiteHide

Chemical Properties of VendidaiteHide

Crystallography of VendidaiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of VendidaiteHide

Synonyms of VendidaiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

References for VendidaiteHide

Internet Links for VendidaiteHide

Localities for VendidaiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide