Virgilluethite
A valid IMA mineral species
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Formula:
MoO3 · H2O
Colour:
pale yellow-green
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
3.71
Crystal System:
Monoclinic
Name:
Named for Virgil Lueth () Emeritus, Museum Director, New Mexico Bureau of Geology & Mineral Resources Mineral Museum.
Dimorph of:
The lower-hydrate counterpart of sidwillite and the monohydrated counterpart of molybdite. Also a higher hydrate compared to tianhuixinite.
Also compare ilsemannite.
Also compare ilsemannite.
Unique Identifiers
Mindat ID:
470734
Long-form identifier:
mindat:1:1:470734:5
GUID
(UUID V4):
(UUID V4):
6b8d0a93-baae-49ad-8e80-3200b43d3013
IMA Classification of Virgilluethite
Approved
Approval history:
IMA no. 2023-006
Type description reference:
Classification of Virgilluethite
4.CB.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Vlh | 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 Virgilluethite
Vitreous
Transparency:
Transparent
Colour:
pale yellow-green
Streak:
white
Hardness:
2 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
{010}
{010}
Density:
3.71(5) g/cm3 (Measured) 3.69 g/cm3 (Calculated)
Chemistry of Virgilluethite
Mindat Formula:
MoO3 · H2O
Elements listed:
Crystallography of Virgilluethite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 7:2834(3) Å, b = 10.6949(6) Å, c = 7.4861(3) Å
β = 112.779(2)°
β = 112.779(2)°
Ratio:
a:b:c = 0.655 : 1 : 0.7
Unit Cell V:
516.73 ų (Calculated from Unit Cell)
Z:
4
Twinning:
None observed
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.346 Å | (62) |
3.531 Å | (90) |
3.445 Å | (100) |
2.938 Å | (8) |
2.654 Å | (26) |
2.587 Å | (19) |
2.379 Å | (8) |
1.865 Å | (11) |
Type Occurrence of Virgilluethite
General Appearance of Type Material:
crystals are pseudomorphs after sidwillite and occur as aggregates of sub-parallel platy crystals.
Place of Conservation of Type Material:
collections of the (1) University of Arizona Alfie Norville Gem & Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue number 22723 (holotype), and (2) the RRUFF Project, deposition number R220017 (cotype)
Associated Minerals at Type Locality:
Synonyms of Virgilluethite
Other Language Names for Virgilluethite
Afar:Virgilluethite
Related Minerals - Strunz-mindat Grouping
4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) |
4.CB. | Zhenruite | (MoO3)2 · H2O |
4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 |
4.CB.05 | Brizziite | NaSb5+O3 |
4.CB.05 | Corundum | Al2O3 |
4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 |
4.CB.05 | Eskolaite | Cr2O3 |
4.CB.05 | Geikielite | MgTiO3 |
4.CB.05 | Hematite | Fe2O3 |
4.CB.05 | Ilmenite | Fe2+TiO3 |
4.CB.05 | Karelianite | V3+2O3 |
4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 |
4.CB.05 | Pyrophanite | Mn2+TiO3 |
4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 |
4.CB.05 | Auroantimonate | AuSbO3 |
4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) |
4.CB.05 | Tistarite | Ti3+2O3 |
4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 |
4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 |
4.CB.10 | Avicennite | Tl2O3 |
4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 |
4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 |
4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 |
4.CB.15 | Sassite | Ti3+2Ti4+O5 |
4.CB.15 | Pseudobrookite | Fe2TiO5 |
4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 |
4.CB.15 | Griffinite | Al2TiO5 |
4.CB.15 | Pseudobrookite Group | |
4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 |
4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 |
4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 |
4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 |
4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 |
4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 |
4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) |
4.CB.25 | Pseudorutile | Fe2Ti3O9 |
4.CB.25 | Kleberite | FeTi6O11(OH)5 |
4.CB.30 | Berdesinskiite | V3+2TiO5 |
4.CB.30 | Oxyvanite | V3+2V4+O5 |
4.CB.30 | Kaitianite | Ti3+2Ti4+O5 |
4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 |
4.CB.35 | Schreyerite | V3+2Ti3O9 |
4.CB.35 | Machiite | Al2Ti3O9 |
4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 |
4.CB.40 | Kamiokite | Fe2Mo3O8 |
4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 |
4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 |
4.CB.40 | Iseite | Mn2Mo3O8 |
4.CB.40 | Majindeite | Mg2Mo3O8 |
4.CB.45 | Claudetite | As2O3 |
4.CB.45 | Stibioclaudetite | AsSbO3 |
4.CB.50 | Arsenolite | As2O3 |
4.CB.50 | Senarmontite | Sb2O3 |
4.CB.55 | Valentinite | Sb2O3 |
4.CB.60 | Bismite | Bi2O3 |
4.CB.65 | Sphaerobismoite | Bi2O3 |
4.CB.70 | Sillénite | Bi12SiO20 |
4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) |
4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 |
4.CB.85 | Liuite | FeTiO3 |
4.CB.90 | Luogufengite | Fe2O3 |
4.CB.95 | Wangdaodeite | FeTiO3 |
Other Information
Notes:
insoluble in water or hydrochloric acid.
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 Virgilluethite
mindat.org URL:
https://www.mindat.org/min-470734.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
References for Virgilluethite
Localities for Virgilluethite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| Bosi et al. (2023) +1 other reference |