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Hughesite

A valid IMA mineral species

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Photos of Hughesite (10)

Hughesite Gallery Search Photos of Hughesite

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Hughesite

Little Eva Mine, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

Hughesite

West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

Hughesite

West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

Hughesite

Little Eva Mine, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

Hughesite

West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

Hughesite

West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

Hughesite

Little Eva Mine, Yellow Cat Mesa, Thompsons Mining District, Grand County, Utah, USA

Hughesite

West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

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About HughesiteHide

John Hughes

Formula:

Na₃Al(V₁₀O₂₈) · 22H₂O

Colour:

Orange to golden orange

Lustre:

Sub-Adamantine

Hardness:

Specific Gravity:

2.29 (Calculated)

Crystal System:

Triclinic

Name:

Named in honor of Dr. John Michael Hughes (b. 1952), formerly Professor of Mineralogy at Miami University and now Professor of Mineralogy and former Provost at the University of Vermont, for his long and outstanding career in mineralogy, including his extensive work on the pascoite family of minerals and vanadium bronzes.

Type Locality:

ⓘ West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

This page provides mineralogical data about Hughesite.

Unique IdentifiersHide

Mindat ID:

42434

Long-form identifier:

mindat:1:1:42434:9

GUID
(UUID V4):

48eeb1c4-fcf9-429b-9357-98595f848dcb

IMA Classification of HughesiteHide

IMA status:

Approved

IMA Formula:

Na₃AlV₁₀O₂₈ · 22H₂O

Approval year:

2010

First published:

2011

Type description reference:

Rakovan, J., Schmidt, G. R., Gunter, M. E., Nash, B., Marty, J., Kampf, A. R., Wise, W. S. (2011) Hughesite, Na₃Al(V₁₀O₂₈)·22H₂O, a new member of the pascoite family of minerals from the Sunday Mine, San Miguel County, Colorado. The Canadian Mineralogist, 49 (5) 1253-1265 doi:10.3749/canmin.49.5.1253

Classification of HughesiteHide

Strunz-mindat (2024):

4.HC.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
C : [6]-Sorovanadates

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
Hug	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 HughesiteHide

Lustre:

Sub-Adamantine

Transparency:

Transparent

Colour:

Orange to golden orange

Comment:

The thinnest layers of hughesite appear orange, whereas the thickest layers are golden orange.

Streak:

Yellow

Hardness:

1 on Mohs scale

Hardness Data:

Estimated

Cleavage:

Distinct/Good
One good direction of cleavage parallel to (001)

Fracture:

Irregular/Uneven

Density:

2.29 g/cm³ (Calculated)

Optical Data of HughesiteHide

Type:

Biaxial (-)

RI values:

n_α = 1.698 n_β = 1.740 n_γ = 1.770

2V:

Measured: 84° (2), Calculated: 79°

Max Birefringence:

δ = 0.072

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

Surface Relief:

High

Dispersion:

strong dispersion, with r > v.

Pleochroism:

Visible

Comments:

X = Y light golden yellow, and Z dark golden yellow.

Chemistry of HughesiteHide

Mindat Formula:

Na₃Al(V₁₀O₂₈) · 22H₂O

Elements listed:

Al, H, Na, O, V - search for minerals with similar chemistry

Crystallography of HughesiteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pinacoidal

Space Group:

Setting:

Cell Parameters:

a = 8.668 Å, b = 10.295 Å, c = 12.908 Å
α = 105.826°, β = 97.899°, γ = 103.385°

Ratio:

a:b:c = 0.842 : 1 : 1.254

Unit Cell V:

1053 Å³

Morphology:

Crystals are variable in habit from blocky to spear-shaped and platy.

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)
0018981	Hughesite	Rakovan J, Schmidt G R, Gunter M E, Nash B, Marty J, Kampf A R, Wise W S (2011) Hughesite, Na3Al(V10O28)22H2O, a new member of the pascoite family of minerals from the Sunday mine, San Miguel county, Colorado* The Canadian Mineralogist 49 1253-1265		2011	Sunday mine, San Miguel county, Colorado	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Hughesite'
loop_
_publ_author_name
'Rakovan J'
'Schmidt G R'
'Gunter M E'
'Nash B'
'Marty J'
'Kampf A R'
'Wise W S'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 49 
_journal_year 2011
_journal_page_first 1253
_journal_page_last 1265
_publ_section_title
;
 Hughesite, Na3Al(V10O28)*22H2O, a new member of the pascoite family of minerals
 from the Sunday mine, San Miguel county, Colorado
;
_database_code_amcsd 0018981
_chemical_compound_source 'Sunday mine, San Miguel county, Colorado'
_chemical_formula_sum 'Na3 Al V10 O50 H44'
_cell_length_a 8.668
_cell_length_b 10.295
_cell_length_c 12.908
_cell_angle_alpha 105.826
_cell_angle_beta 97.899
_cell_angle_gamma 103.385
_cell_volume 1053.064
_exptl_crystal_density_diffrn      2.286
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,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
Na1   0.50000   0.00000   0.00000   0.01380
Na2   0.08400  -0.23409   0.91567   0.04500
Al1   0.50000   0.50000   0.50000   0.03080
V1   0.19664   0.07252   0.53427   0.01250
V2   0.00684  -0.01910   0.70657   0.01400
V3   0.05702  -0.24605   0.51040   0.01300
V4   0.13793   0.29976   0.72602   0.01590
V5   0.23092  -0.15303   0.33568   0.01500
O1   0.07770  -0.33800   0.59060   0.02050
O2   0.03060  -0.11140   0.78610   0.02180
O3   0.29350   0.22560   0.63990   0.01520
O4   0.14260   0.15460   0.78720   0.01600
O5   0.06390  -0.30000   0.24260   0.01640
O6   0.33880   0.02670   0.46790   0.01630
O7   0.12050   0.16910   0.43340   0.01160
O8   0.38530  -0.18110   0.28870   0.02390
O9   0.17560  -0.05370   0.61750   0.01190
O10   0.23180  -0.24360   0.44510   0.01550
O11  -0.09370  -0.37130   0.39120   0.01530
O12  -0.17960   0.02510   0.73240   0.01640
O13   0.02360  -0.09720   0.41640   0.01230
O14   0.26030   0.43540   0.81770   0.02730
O15   0.34010  -0.23400   0.86780   0.04700
O16  -0.15770  -0.22840   0.98170   0.03610
O17   0.23940  -0.00980   0.05680   0.03430
O18   0.13350  -0.37680   0.02980   0.04200
O19   0.32400   0.36490   0.39380   0.02190
O20   0.36410   0.55260   0.59670   0.02250
O21   0.46530   0.63480   0.43360   0.02210
O22  -0.09070  -0.42580   0.74430   0.03140
O23   0.44480   0.12950   0.88390   0.05400
O24   0.39100  -0.49460   0.08440   0.09700
O25   0.44480   0.83610   0.68530   0.03390
H15A   0.36500  -0.23400   0.81600   0.09000
H15B   0.39500  -0.27600   0.89100   0.14000
H16A  -0.22900  -0.29200   0.95400   0.02000
H16B  -0.14700  -0.20900   0.04800   0.02000
H17A   0.22200  -0.00700   0.11900   0.03000
H17B   0.20900   0.05300   0.05400   0.02000
H18A   0.11700  -0.34700   0.08500   0.06000
H18B   0.20900  -0.41100   0.04200   0.11000
H19A   0.26400   0.30800   0.40400   0.04000
H19B   0.26900   0.39400   0.35300   0.01000
H20A   0.28900   0.51400   0.59000   0.01000
H20B   0.38500   0.64600   0.63800   0.05000
H21A   0.53100   0.67200   0.40800   0.02000
H21B   0.38500   0.66700   0.43300   0.02000
H22A  -0.09300  -0.48600   0.75400   0.02000
H22B   0.01800  -0.40900   0.69300   0.17000
H23A   0.36900   0.14000   0.85100   0.07000
H23B   0.49200   0.13100   0.84800   0.02000
H24A   0.44300  -0.41300   0.05400   0.06000
H24B   0.41400  -0.55400   0.16000   0.08000
H25A   0.54400   0.87300   0.69000   0.07000
H25B   0.40400   0.87700   0.67500   0.03000
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
Na1 0.01170 0.01100 0.02100 0.00390 0.00630 0.00930
Na2 0.03100 0.06600 0.04200 0.01000 0.00800 0.02400
Al1 0.03600 0.03300 0.02700 0.01000 0.00660 0.01490
V1 0.00990 0.01330 0.01610 0.00300 0.00310 0.00720
V2 0.01850 0.01410 0.01230 0.00590 0.00450 0.00730
V3 0.01480 0.01240 0.01610 0.00610 0.00560 0.00820
V4 0.01740 0.01410 0.01570 0.00450 0.00340 0.00390
V5 0.01510 0.01820 0.01770 0.00770 0.00770 0.00850
O1 0.02300 0.02100 0.02400 0.00900 0.00800 0.01400
O2 0.03000 0.02000 0.02200 0.01000 0.00900 0.01400
O3 0.01100 0.01500 0.01900 0.00200 0.00200 0.00800
O4 0.02000 0.01400 0.01400 0.00500 0.00300 0.00500
O5 0.02100 0.01400 0.01500 0.00800 0.00500 0.00500
O6 0.01000 0.01800 0.02000 0.00400 0.00400 0.00700
O7 0.01200 0.01000 0.01300 0.00300 0.00500 0.00500
O8 0.02500 0.02900 0.02600 0.01500 0.01200 0.01400
O9 0.01300 0.01100 0.01300 0.00300 0.00100 0.00700
O10 0.01700 0.01500 0.01700 0.00800 0.00700 0.00700
O11 0.01400 0.01400 0.01900 0.00500 0.00400 0.00600
O12 0.01700 0.01900 0.01600 0.00600 0.00700 0.01100
O13 0.00900 0.01500 0.01500 0.00300 0.00300 0.00900
O14 0.02700 0.02200 0.02600 0.00100 0.00300 0.00200
O15 0.05400 0.05400 0.04400 0.02300 0.02100 0.01900
O16 0.04500 0.04000 0.02000 0.00900 0.01100 0.00700
O17 0.04400 0.03900 0.02900 0.02100 0.01700 0.01500
O18 0.06100 0.04900 0.02800 0.02900 0.01500 0.01700
O19 0.01600 0.02000 0.02900 -0.00100 0.00100 0.01500
O20 0.01500 0.01800 0.03300 0.00100 0.01200 0.00700
O21 0.01800 0.02000 0.03800 0.00800 0.01200 0.02100
O22 0.04000 0.02400 0.03600 0.01100 0.01100 0.01800
O23 0.03700 0.10200 0.05000 0.03400 0.01900 0.04800
O24 0.05700 0.07700 0.14700 0.00900 -0.00400 0.04100
O25 0.03200 0.02700 0.04100 0.00800 0.00500 0.01100

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
12.24 Å	(100)
9.50 Å	(30)
8.99 Å	(28)
8.25 Å	(38)

Comments:

The strongest four lines in the powder-diffraction pattern.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 7: Great Oxidation Event	<2.4
47e : [Vanadates, chromates, manganates]
Stage 10b: Anthropogenic minerals	<10 Ka
55 : Anthropogenic mine minerals

Geological Setting:

Hughesite has also been identified on samples from the West Sunday mine, Gypsum Valley, San Miguel County, and the Blue Streak mine in Montrose County, Colorado.

Type Occurrence of HughesiteHide

Type Locality:

ⓘ West Sunday Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

General Appearance of Type Material:

Hughesite occurs as crystalline druses on the sandstone walls, usually in organic-carbon-rich zones, of mine workings and on fracture surfaces at the Sunday mine, Gypsum Valley, San Miguel County, Slick Rock District, Colorado, USA.

Place of Conservation of Type Material:

The holotype specimen, composed of numerous crystals on matrix, resides in the collection of the National Museum of Natural History of the Smithsonian Institution (NMNH #174253).

Geological Setting of Type Material:

Colorado Plateau, sandstone hosted, vanadium-uranium, roll front type deposit.

Associated Minerals at Type Locality:

Sherwoodite	Rossite	Montroseite	Hewettite	Corvusite
Carnotite

Reference:

Rakovan, J., Schmidt, G., Gunter, M., Nash, B., Marty, J, Kampf, A.R., Wise, W.S. (2011) Hughesite Na3AlV10O28∙22H2O, a new member of the pascoite family of minerals from the Sunday Mine, San Miguel County, Colorado. The Canadian Mineralogist, 49, 1253-1265.

Download:

https://rruff.info/rruff_1.0/uploads/CM49_1253.pdf

Synonyms of HughesiteHide

IMA2009-035a

Common AssociatesHide

Associated Minerals Based on Photo Data:

1 photo of Hughesite associated with Andersonite	Na₂Ca(UO₂)(CO₃)₃ · 6H₂O
1 photo of Hughesite associated with Pascoite	Ca₂Ca(V₁₀O₂₈) · 17H₂O
1 photo of Hughesite associated with Corvusite	(Na,K,Ca,Mg)₂(V⁵⁺,V⁴⁺,Fe²⁺)₈O₂₀ · 6-10H₂O
1 photo of Hughesite associated with Montroseite	(V³⁺,Fe³⁺)O(OH)
1 photo of Hughesite associated with Hummerite	K₂Mg₂(V₁₀O₂₈) · 16H₂O

Related Minerals - Strunz-mindat Grouping Hide

4.HC.	Beckettite	Ca₂V₆Al₆O₂₀	Tric. 1 : P1
4.HC.	Ammoniolasalite	(NH₄)₂Mg₂(H₂O)₂₀] [V₁₀O₂₈]	Mon. 2/m : B2/b
4.HC.	Protocaseyite	[Al₄(OH)₆(H₂O)₁₂][V₁₀O₂₈] · 8H₂O	Tric. 1 : P1
4.HC.05	Pascoite	Ca₂Ca(V₁₀O₂₈) · 17H₂O	Mon. 2 : B2
4.HC.05	Lasalite	Na₂Mg₂(V₁₀O₂₈) · 20H₂O	Mon. 2/m : B2/b
4.HC.05	Magnesiopascoite	Ca₂Mg(V₁₀O₂₈) · 16H₂O	Mon. 2/m : B2/m
4.HC.05	Rakovanite	(NH₄)₃Na₃(V₁₀O₂₈) · 12H₂O	Mon. 2/m
4.HC.05	Hydropascoite	Ca₃(V₁₀O₂₈) · 24H₂O	Tric. 1 : P1
4.HC.10	Hummerite	K₂Mg₂(V₁₀O₂₈) · 16H₂O	Tric. 1 : P1
4.HC.15	Sherwoodite	Ca_5.5(AlV⁴⁺V⁵⁺₁₂O₃₉) · 28H₂O	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
4.HC.20	Bluestreakite	K₄Mg₂(V⁴⁺₂V⁵⁺₈O₂₈) · 14H₂O	Mon. 2/m
4.HC.25	Wernerbaurite	{(NH₄)₂[Ca₂(H₂O)₁₄](H₂O)₂}{V₁₀O₂₈}	Tric. 1 : P1
4.HC.25	Burroite	Ca₂(NH₄)₂(V₁₀O₂₈) · 15H₂O	Tric. 1 : P1
4.HC.30	Caseyite	[(V⁵⁺O₂)Al_10-x(OH)_20-2x(H₂O)_18-2x]₂[H₂V⁴⁺V⁵⁺₉O₂₈][V⁵⁺₁₀O₂₈]₂(Na,K,Ca)_2-y(SO₄)_2-z · (60+8x+y+4z)H₂O (x = 0-2.5; y = 0-2; z = 0-2)	Mon.
4.HC.35	Gunterite	Na₄Ca(V₁₀O₂₈) · 20H₂O	Mon. 2/m : B2/m
4.HC.40	Kokinosite	Na₂Ca₂(V₁₀O₂₈) · 24H₂O	Tric. 1 : P1
4.HC.45	Nashite	Na₃Ca₂[(V⁵⁺₉V⁴⁺)O₂₈] · 24H₂O	Mon. 2/m : P2₁/m
4.HC.50	Okieite	Mg₃[V₁₀O₂₈] · 28H₂O	Tric. 1 : P1
4.HC.55	Postite	Mg(H₂O)₆Al₂(OH)₂(H₂O)₈(V₁₀O₂₈) · 13H₂O	Orth. mmm (2/m 2/m 2/m) : Pccn
4.HC.60	Schindlerite	{(NH₄)₄Na₂(H₂O)₁₀}{V₁₀O₂₈}	Tric. 1 : P1

Other InformationHide

Notes:

Highly soluble in water, acetone and alcohol.

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 HughesiteHide

mindat.org URL:

https://www.mindat.org/min-42434.html
Please feel free to link to this page.

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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 HughesiteHide

Reference List:

Schmidt, G. (2009). Triclinic Na3Al(V10O28)•22H2O, A new member of the pascoite group of minerals from the Sunday Mine, San Miguel Co., CO. Master of Science thesis, Miami University.

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

Localities for HughesiteHide

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.


USA
Colorado Montrose County Bull Canyon Mining District ⓘ Blue Streak Mine	Kampf et al. (2014)
San Miguel County Slick Rock Mining District ⓘ Burro Mine	Kampf et al. (2019)
ⓘ Saint Jude Mine	Kampf et al. (2013)
ⓘ Suncup No. 2 Mine	Collected by and in the collection of ...
ⓘ Sunday Mine	www.handbookofmineralogy.org (2015)
ⓘ West Sunday Mine (TL)	Rakovan et al. (2011) +1 other reference
Utah Grand County Thompsons Mining District Yellow Cat Mesa ⓘ Little Eva Mine	Kasatkin et al. (2015)

Hughesite

About HughesiteHide

Unique IdentifiersHide

IMA Classification of HughesiteHide

Classification of HughesiteHide

Mineral SymbolsHide

Physical Properties of HughesiteHide

Optical Data of HughesiteHide

Chemistry of HughesiteHide

Crystallography of HughesiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of HughesiteHide

Synonyms of HughesiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for HughesiteHide

References for HughesiteHide

Localities for HughesiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide