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Guettardite

A valid IMA mineral species

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Photos of Guettardite (9)

Guettardite Gallery Search Photos of Guettardite

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Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

Guettardite, etc.

Brobdignag Mine, Anvil Mountain, San Juan County, Colorado, USA

Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

Guettardite, etc.

Brobdignag Mine, Anvil Mountain, San Juan County, Colorado, USA

Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

Guettardite

Seravezza quarrying basin, Seravezza, Lucca Province, Tuscany, Italy

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About GuettarditeHide

Jean-Étienne Guettard

Formula:

Pb₈(Sb_0.56As_0.44)₁₆S₃₂

Ordered arrangement of As and Sb atoms. Also written as PbAsSbS₄.

Colour:

Greyish black

Lustre:

Metallic

Hardness:

Specific Gravity:

5.29 (Calculated)

Crystal System:

Monoclinic

Member of:

Sartorite Group

Name:

Named in honor of Jean-Etienne Guettard (1715-1786), French geologist, botanist and natural historian. He is credited with the creation of the first mineralogical-geological map known (western Europe) in 1746, Carte minéralogique du Canada et de la Louisiane (Eastern Canada and USA) in 1752, followed by the Atlas minéralogique de la France (with Lavoisier) in 1767, and the Carte minéralogique de la France in 1784. Guettard was a member of the Académie des Sciences from 1743, and is the author of La minéralogie du Dauphiné (1782).

Type Locality:

ⓘ Taylor Pit, Huntingdon Township, Centre Hastings Municipality, Hastings County, Ontario, Canada

Related to twinnite (Sb:As ~ 13:8, bit variable) and hyršlite (Sb:As = 6:10).

Unique IdentifiersHide

Mindat ID:

1768

Long-form identifier:

mindat:1:1:1768:4

GUID
(UUID V4):

a2d11008-799f-4c3c-89b2-13904a563ab9

IMA Classification of GuettarditeHide

IMA status:

Approved

First published:

1967

Type description reference:

Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 2 - mineral descriptions. The Canadian Mineralogist, 9 (2) 191-213

Classification of GuettarditeHide

Strunz-mindat (2024):

2.HC.05a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
C : With only Pb

Dana 8th ed.:

3.7.8.2

3 : SULFOSALTS
7 : ø = 2

Hey's CIM Ref.:

5.6.18

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
6 : Sulpharsenites etc. of Pb alone

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
Gue	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 GuettarditeHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Greyish black

Streak:

Black to brown

Hardness:

4 on Mohs scale

Hardness:

VHN₅₀=180 - 197 kg/mm² - Vickers

Tenacity:

Very brittle

Cleavage:

Perfect
Cleavage given as perfect on {001} type material, but no cleavage is given for 2nd reported occurrence.

Fracture:

Conchoidal

Density:

5.29 g/cm³ (Calculated)

Optical Data of GuettarditeHide

Reflectivity:

Wavelength	R₁	R₂	^imR₁	^imR₂
470nm	37.6%	42.6%	22.3%	26.1%
546nm	36.1%	41.2%	20.4%	23.6%
589nm	34.8%	39.3%	19.5%	22.9%
650nm	32.8%	36.7%	17.9%	21.2%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 42.6%.
R₁ shown in black, R₂ shown in red, ^imR₁ shown in green, ^imR₂ shown in blue

Colour in reflected light:

White

Internal Reflections:

Internal reflections red in type material, none in some other material

Pleochroism:

Strong

Comments:

Nearly opaque, but a slight reddish internal reflection is observable in minute fragments under a very strong light.

Chemistry of GuettarditeHide

Mindat Formula:

Pb₈(Sb_0.56As_0.44)₁₆S₃₂

Ordered arrangement of As and Sb atoms. Also written as PbAsSbS₄.

Elements listed:

As, Pb, S, Sb - search for minerals with similar chemistry

Common Impurities:

Crystallography of GuettarditeHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

P2₁/b

Setting:

P2₁/c

Cell Parameters:

a = 8.527(4) Å, b = 7.971(4) Å, c = 20.102(10) Å
β = 101.814(7)°

Ratio:

a:b:c = 1.07 : 1 : 2.522

Unit Cell V:

1,337.37 Å³ (Calculated from Unit Cell)

Morphology:

Acicular crystals, anhedral grains.

Twinning:

polysynthetic on {100}

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)
0019213	Guettardite	Makovicky E, Topa D, Tajjedin H, Rastad E, Yaghubpur A (2012) The crystal structure of guettardite, PbAsSbS4, and the twinnite-guettardite problem The Canadian Mineralogist 50 253-265		2012	Barika Au-Ag deposit in the Azarbaijan Province, western Iran	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Guettardite'
loop_
_publ_author_name
'Makovicky E'
'Topa D'
'Tajjedin H'
'Rastad E'
'Yaghubpur A'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 50 
_journal_year 2012
_journal_page_first 253
_journal_page_last 265
_publ_section_title
;
 The crystal structure of guettardite, PbAsSbS4,
 and the twinnite-guettardite problem
;
_database_code_amcsd 0019213
_chemical_compound_source 'Barika Au-Ag deposit in the Azarbaijan Province, western Iran'
_chemical_formula_sum 'Pb As Sb S4'
_cell_length_a 8.527
_cell_length_b 7.971
_cell_length_c 20.102
_cell_angle_alpha 90
_cell_angle_beta 101.814
_cell_angle_gamma 90
_cell_volume 1337.365
_exptl_crystal_density_diffrn      5.286
_symmetry_space_group_name_H-M 'P 1 21/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Pb1   0.51740   0.09260   0.79750   0.03600
Pb2   0.02430   0.08540   0.80270   0.05000
As1   0.35860   0.17080   0.99400   0.02200
As2   0.80670   0.00630   0.36810   0.02300
Sb1   0.91160   0.19510   0.02560   0.02500
Sb2   0.65970   0.01960   0.61320   0.02800
S1   0.14030   0.00940   0.07640   0.02000
S2   0.70430   0.04160   0.08400   0.02400
S3   0.54400   0.19330   0.44190   0.03200
S4   0.41480   0.16750   0.65740   0.01900
S5   0.15060   0.15840   0.45310   0.03400
S6   0.26900   0.14140   0.28170   0.02100
S7   0.99970   0.16580   0.65970   0.02200
S8   0.75580   0.15490   0.26860   0.02400
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
Pb1 0.03600 0.03600 0.03400 0.01000 0.00200 0.00600
Pb2 0.04900 0.06600 0.03900 0.02800 0.02000 0.02000
As1 0.01900 0.01600 0.03100 0.00200 0.00100 0.00700
As2 0.02100 0.02400 0.02300 0.00300 0.00100 0.00200
Sb1 0.02900 0.01800 0.02800 0.00200 0.00600 0.00100
Sb2 0.03800 0.01700 0.02700 0.00200 0.00400 0.00040
S1 0.02200 0.01500 0.02300 0.00700 0.00500 0.00900
S2 0.03500 0.01700 0.02300 0.00300 0.01300 0.00600
S3 0.03500 0.02000 0.04400 0.00200 0.01500 0.01200
S4 0.01800 0.01800 0.02200 0.00900 0.00400 0.00700
S5 0.03000 0.01500 0.06800 0.00200 0.02300 0.01600
S6 0.02500 0.01900 0.02000 0.00500 0.00700 0.00600
S7 0.02900 0.01900 0.01800 0.00000 0.00600 0.01200
S8 0.02700 0.01700 0.03000 0.00500 0.01000 0.00100

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.52 Å	(100)
2.795 Å	(90)
4.19 Å	(50)
3.90 Å	(50)
2.670 Å	(50)
2.653 Å	(50)
2.335 Å	(40)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of GuettarditeHide

Type Locality:

ⓘ Taylor Pit, Huntingdon Township, Centre Hastings Municipality, Hastings County, Ontario, Canada

General Appearance of Type Material:

Isolated anhedral grains.

Place of Conservation of Type Material:

Canadian Geological Survey, Ottawa, Canada, 12167.
Royal Ontario Museum, Toronto, Canada.

Geological Setting of Type Material:

Low temperature hydrothermal vein.

Associated Minerals at Type Locality:

Zinkenite	Wurtzite	Tetrahedrite Subgroup	Stibnite	Sterryite
Sphalerite	Sartorite	Realgar	Pyrite	Orpiment
Jordanite	Jamesonite	Galena	Enargite	Bournonite
Boulangerite

Reference:

Jambor, J.L. (1967) New lead sulfantimonides from Madoc, Ontario. 2. Mineral descriptions. The Canadian Mineralogist: 9: 191-213.

Download:

https://rruff.info/rruff_1.0/uploads/CM9_191.pdf

Synonyms of GuettarditeHide

IMA1966-018

Other Language Names for GuettarditeHide

German:Guettardit

Spanish:Guettardita

Relationship of Guettardite to other SpeciesHide

Member of:

Sartorite Group

Other Members of this group:

Argentobaumhauerite	Ag_1.5Pb₂₂As_33.5S₇₂	Tric. 1 : P1
Argentodufrénoysite	Ag₃Pb₂₆As₃₅S₈₀	Tric. 1 : P1
Argentoliveingite	Ag_3+xPb_36-2xAs_51+xS₁₁₂	Tric. 1 : P1
Barikaite	Ag₃Pb₁₀(Sb₈As₁₁)S₄₀	Mon. 2/m : P2₁/b
Baumhauerite	Pb₁₂As₁₆S₃₆	Tric. 1 : P1
Bernarlottiite	Pb₆(As₅Sb₃)S₁₈	Tric. 1 : P1
Boscardinite	TlPb₄(Sb₇As₂)S₁₈	Tric. 1 : P1
Carducciite	(Ag₂Sb₂)Pb₁₂(As,Sb)₁₆S₄₀	Mon. 2/m : P2₁/b
Dekatriasartorite	TlPb₅₈As₉₇S₂₀₄	Mon. 2/m : P2₁/b
Dufrénoysite	Pb₂As₂S₅	Mon. 2 : P2₁
Écrinsite	AgTl₃Pb₄As₁₁Sb₉S₃₆	Tric. 1 : P1
Enneasartorite	Tl₆Pb₃₂As₇₀S₁₄₀	Mon. 2/m : P2₁/b
Hendekasartorite	Tl₂Pb₄₈As₈₂S₁₇₂	Mon. 2/m : P2₁/b
Heptasartorite	Tl₇Pb₂₂As₅₅S₁₀₈	Mon. 2/m : P2₁/b
Hyršlite	Pb₈As₁₀Sb₆S₃₂	Mon. 2 : P2₁
Incomsartorite	Tl₆Pb₁₄₄As₂₄₆S₅₁₆	Mon. 2/m
Interliveingite	AgPb₁₈As₂₅S₅₆	Mon. 2 : P2₁
Liveingite	Pb₉As₁₃S₂₈	Mon. 2 : P2₁
Parapierrotite	TlSb₅S₈	Mon. m
Philrothite	TlAs₃S₅	Mon. 2/m : P2₁/b
Pierrotite	Tl₂(Sb,As)₁₀S₁₆	Orth. mm2 : Pna2₁
Polloneite	AgPb₄₆As₂₆Sb₂₃S₁₂₀	Mon. 2 : P2₁
Rathite	Ag₂Pb_12-xTl_x/2As_18+x/2S₄₀	Mon. 2/m : P2₁/b
Sartorite	PbAs₂S₄	Mon. 2/m : P2₁/m
Twinnite	Pb_0.8Tl_0.1Sb_1.3As_0.8S₄	Mon. 2/m
Veenite	Pb₁₆Sb_9-xAs_7+xS₄₀, x ~ 0-0.5	Mon. 2 : P2₁

Common AssociatesHide

Associated Minerals Based on Photo Data:

3 photos of Guettardite associated with Zinkenite	Pb₉Sb₂₂S₄₂
1 photo of Guettardite associated with Sulphur	S₈
1 photo of Guettardite associated with Enargite	Cu₃AsS₄

Related Minerals - Strunz-mindat Grouping Hide

2.HC.	Bernarlottiite	Pb₆(As₅Sb₃)S₁₈	Tric. 1 : P1
2.HC.05b	Argentobaumhauerite	Ag_1.5Pb₂₂As_33.5S₇₂	Tric. 1 : P1
2.HC.05b	Baumhauerite	Pb₁₂As₁₆S₃₆	Tric. 1 : P1
2.HC.05d	Dufrénoysite	Pb₂As₂S₅	Mon. 2 : P2₁
2.HC.05c	Liveingite	Pb₉As₁₃S₂₈	Mon. 2 : P2₁
2.HC.05f	Parapierrotite	TlSb₅S₈	Mon. m
2.HC.05f	Pierrotite	Tl₂(Sb,As)₁₀S₁₆	Orth. mm2 : Pna2₁
2.HC.05d	Rathite	Ag₂Pb_12-xTl_x/2As_18+x/2S₄₀	Mon. 2/m : P2₁/b
2.HC.05a	Sartorite	PbAs₂S₄	Mon. 2/m : P2₁/m
2.HC.05a	Twinnite	Pb_0.8Tl_0.1Sb_1.3As_0.8S₄	Mon. 2/m
2.HC.05d	Veenite	Pb₁₆Sb_9-xAs_7+xS₄₀, x ~ 0-0.5	Mon. 2 : P2₁
2.HC.05g	Marumoite	Pb₃₂As₄₀S₉₂	Mon. 2 : P2₁
2.HC.05d	Rathite-IV	PbAs₂S₄
2.HC.05f	Philrothite	TlAs₃S₅	Mon. 2/m : P2₁/b
2.HC.05h	Polloneite	AgPb₄₆As₂₆Sb₂₃S₁₂₀	Mon. 2 : P2₁
2.HC.05e	Heptasartorite	Tl₇Pb₂₂As₅₅S₁₀₈	Mon. 2/m : P2₁/b
2.HC.05e	Hendekasartorite	Tl₂Pb₄₈As₈₂S₁₇₂	Mon. 2/m : P2₁/b
2.HC.05e	Écrinsite	AgTl₃Pb₄As₁₁Sb₉S₃₆	Tric. 1 : P1
2.HC.05b	Baumhauerite II
2.HC.05c	Argentoliveingite	Ag_3+xPb_36-2xAs_51+xS₁₁₂	Tric. 1 : P1
2.HC.05e	Incomsartorite	Tl₆Pb₁₄₄As₂₄₆S₅₁₆	Mon. 2/m
2.HC.05d	Argentodufrénoysite	Ag₃Pb₂₆As₃₅S₈₀	Tric. 1 : P1
2.HC.05a	Hyršlite	Pb₈As₁₀Sb₆S₃₂	Mon. 2 : P2₁
2.HC.05e	Dekatriasartorite	TlPb₅₈As₉₇S₂₀₄	Mon. 2/m : P2₁/b
2.HC.10a	Fülöppite	Pb₃Sb₈S₁₅	Mon. 2/m : B2/b
2.HC.10c	Heteromorphite	Pb₇Sb₈S₁₉	Mon. 2/m : B2/b
2.HC.10b	Plagionite	Pb₅Sb₈S₁₇	Mon. 2/m : B2/b
2.HC.10d	Rayite	Pb₈(Ag,Tl)₂Sb₈S₂₁	Mon.
2.HC.10d	Semseyite	Pb₉Sb₈S₂₁	Mon. 2/m : B2/b
2.HC.15	Boulangerite	Pb₅Sb₄S₁₁	Mon. 2/m : P2₁/b
2.HC.15	Falkmanite	Pb₃Sb₂S₆	Mon.
2.HC.20	Robinsonite	Pb₄Sb₆S₁₃	Mon. 2/m : P2₁/m
2.HC.25	Moëloite	Pb₆Sb₆S₁₄(S₃)	Orth. 2 2 2 : P2₁ 2₁ 2
2.HC.30	Dadsonite	Pb₂₃Sb₂₅S₆₀Cl	Tric. 1 : P1
2.HC.35	Owyheeite	Ag₃Pb₁₀Sb₁₁S₂₈	Mon. 2/m
2.HC.35	Zoubekite	AgPb₄Sb₄S₁₀	Orth.
2.HC.40	Parasterryite	Ag₄Pb₂₀Sb₁₄As₁₀S₅₈	Mon. 2/m : P2₁/b
2.HC.50	Lopatkaite	Pb₅Sb₃AsS₁₁	Mon. 2/m : P2₁/b

Other InformationHide

Notes:

HNO3 tarnishes guettardite black. KOH tarnishes it iridescent, leaving a flat brownish grey colour (as with twinnite). Reactions with other standard reagents are negative.

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 GuettarditeHide

mindat.org URL:

https://www.mindat.org/min-1768.html
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External Links:

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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 GuettarditeHide

Reference List:

Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 1. The Canadian Mineralogist, 9 (1) 7-24

Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 2 - mineral descriptions. The Canadian Mineralogist, 9 (2) 191-213

Jambor, John Leslie (1968) New lead sulfantimonides from Madoc, Ontario. Part 3-syntheses, paragenesis, origin. The Canadian Mineralogist, 9 (4) 505-521

Bracci, G., Dalena, D., Orlandi, P., Duchi, G., Vezzalini, G. (1980) Guettardite from Tuscany, Italy; a second occurrence. The Canadian Mineralogist, 18 (1) 13-15

Mozgova, N.N., Bortnikov, N.S., Borodaev, Y.S., Tzepine, A.I. (1982) Sur la non-stoechiometrie des sulfosels antimonieux arseniques de plomb. Bull. Mineral.: 105: 3–10. (in French with English abs.)

Jambor, John L., Laflamme, J. H. G., Walker, D. A. (1982) A Re-examination of the Madoc [Ontario] Sulfosalts. The Mineralogical Record, 13 (2) 93-100

Makovicky, E., Topa, D., Tajjedin, H., Rastad, E., Yaghubpur, A. (2012) The crystal structure of guettardite, PbAsSbS₄, and the twinnite-guettardite problem. The Canadian Mineralogist, 50 (2) 253-265 doi:10.3749/canmin.50.2.253

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

Localities for GuettarditeHide

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.


Canada
British Columbia Omineca Mining Division Owen Lake ⓘ Silver Queen Mine (Nadina Mine)	Hood et al. (1991)
Ontario Hastings County Centre Hastings Municipality Huntingdon Township ⓘ Taylor Pit (TL)	Jambor (1967) +2 other references

Chile
Atacama Chañaral Province Potrerillos ⓘ Jerónimo Mine ?	Thompson et al. (2004)

France
Provence-Alpes-Côte d'Azur Hautes-Alpes Gap La Chapelle-en-Valgaudemar ⓘ Jas Roux	Canadian Mineralogist 18:13 +1 other reference

Iran
West Azerbaijan Province Sardasht County Sardasht ⓘ Barika ore deposit	Topa et al. (2013)

Italy
Piedmont Cuneo Province Ormea ⓘ Pornassino	Orlandi P. (2005) +1 other reference
Metropolitan City of Turin Oulx Signols ⓘ Signols Quarries	Orlandi (2011) +1 other reference
Tuscany Lucca Province Seravezza ⓘ Seravezza quarrying basin	Bracci et al. (1980) +3 other references
ⓘ Ceragiola quarries	Biagioni C. et al. (2019)
ⓘ Pitone quarry	Orlandi et al. (2009)

Kyrgyzstan
Batken Region Kadamjay District ⓘ Chauvai (Chauvay) Sb-Hg Deposit	Kolesar et al. (1993)
ⓘ Khaidarkan Sb-Hg deposit	Kolesar et al. (1993)

Russia
Sverdlovsk Oblast Serovsky District Turya river Tur'insk ⓘ Vorontsovskoe deposit (Vorontsovsk gold deposit; Vorontsovka deposit)	Kasatkin et al. (2018) +1 other reference
Zabaykalsky Krai ⓘ Taseyevskoye Au deposit	Eremin et al. (2023)

Switzerland
Valais Sierre Lens ⓘ La Plâtrière quarry	Ansermet et al. (2011)

USA
Colorado San Juan County Anvil Mountain ⓘ Brobdignag Mine	Eckel et al. (1997)

Guettardite

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