Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Andrés Manuel del Río Fernández
CaSr(V2O6)(OH)2 · 3H2O
Pale yellow-green
Crystal System:
Named in 1959 by Mary E. Thompson and Alexander M. Sherwood in honor of Andrés Manuel del Río Fernández [November 10, 1764 Spain — March 23, 1849], who in 1801 announced the discovery of a new element, erythronium, but who withdrew the proposal, because the samples sent to Alexander von Humboldt were wrongly judged to be chromium by Hippolyte Victor Collet-Descotils, who was chosen to verify the new element's validity. Hippolyte Victor Collet-Descotils wrongly concluded that erythronium was merely chromium. When vanadium was announced 30 years later, it was found that del Rio had determined his element accurately even though he had lost priority.
The CaSr analogue of calciodelrioite.

Classification of Delrioite


4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides

1 : Normal Anhydrous Vanadium Oxysalts

21 : Vanadates (and vanadates with arsenate or phosphate)
2 : Vanadates of Mg, Ca, Sr or Ba

Physical Properties of Delrioite

Pale yellow-green

Optical Data of Delrioite

Biaxial (-)
RI values:
nα = 1.783 nβ = 1.834 nγ = 1.866
Max Birefringence:
δ = 0.083
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Delrioite

CaSr(V2O6)(OH)2 · 3H2O
IMA Formula:
Sr(V5+O3)2 · 4H2O

Crystallography of Delrioite

Crystal System:
Cell Parameters:
a = 17.17 Å, b = 7.08 Å, c = 14.64 Å
β = 102.29°
a:b:c = 2.425 : 1 : 2.068
Unit Cell V:
1,738.91 ų (Calculated from Unit Cell)

Type Occurrence of Delrioite

Other Language Names for Delrioite


Common Associates

Associated Minerals Based on Photo Data:
Metadelrioite2 photos of Delrioite associated with Metadelrioite on

Related Minerals - Nickel-Strunz Grouping

4.HG.05FervaniteFe3+4V5+4O16 · 5H2O
4.HG.10HuemuliteNa4Mg(V10O28) · 24H2O
4.HG.15VanaliteNaAl8V10O38 · 30H2O
4.HG.20SimplotiteCaV4+4O9 · 5H2O
4.HG.25VanoxiteV4+4V5+2O13 · 8H2O
4.HG.30NavajoiteFe3+V5+9O24 · 12H2O
4.HG.45Barnesite(Na,Ca)V6O16 · 3H2O
4.HG.50Hendersonite(Ca,Sr)1.3V6O16 · 6H2O
4.HG.55Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2O
4.HG.60LenobliteV4+2O4 · 2H2O
4.HG.65SatpaeviteAl12V4+2V5+6O37 · 30H2O

Related Minerals - Hey's Chemical Index of Minerals Grouping

21.2.1MetarossiteCa(V2O6) · 2H2O
21.2.3MetahewettiteCaV6O16 · 3H2O
21.2.4HewettiteCaV6O16 · 9H2O
21.2.5PintadoiteCa2(V2O7) · 9H2O
21.2.6Hendersonite(Ca,Sr)1.3V6O16 · 6H2O
21.2.7Fernandinite(Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2O
21.2.8PascoiteCa3(V10O28) · 17H2O
21.2.9SherwooditeCa4.5(AlV4+2V5+12O40) · 28H2O
21.2.10MelanovanaditeCa(V5+,V4+)4O10 · 5H2O
21.2.11Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2O
21.2.12HummeriteK2Mg2(V10O28) · 16H2O
21.2.15Straczekite(Ca,K,Ba)(V5+,V4+)8O20 · 3H2O

Related Minerals - Dana Grouping (8th Ed.)

Other Information

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 Delrioite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 44: 261-264.
American Mineralogist: 55: 185-200.

Internet Links for Delrioite URL:
Please feel free to link to this page.

Localities for Delrioite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Colorado
    • Montrose Co.
      • Bull Canyon District
Kampf, A.R., Hughes, J.M., Marty, J., Nash, B.P., Chen, Yu-S., Steele, I.M. (2014) Bluestreakite, K4Mg2(V4+2V5+8O28)·14H2O, a new mixed-valence decavanadate mineral from the Bluestreak Mine, Montrose County, Colorado: crystal structure and descriptive mineralogy. Canadian Mineralogist. 52:1007-1018; Kampf, A. R., Marty, J., Nash, B. P., Plášil, J., Kasatkin, A. V., & Škoda, R. (2012). Calciodelrioite, Ca (VO3) 2 (H2O) 4, the Ca analogue of delrioite, Sr (VO3) 2 (H2O) 4. Mineralogical Magazine, 76(7), 2803-2817.
      • Uravan District
        • Paradox Valley
Amer.Min.(1959) 44, 261-264
  • Nevada
    • Lincoln Co.
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 27, 2017 05:27:42 Page generated: July 24, 2017 14:13:04
Go to top of page