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Delrioite

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Andrés Manuel del Río Fernández
Formula:
CaSr(V2O6)(OH)2 · 3H2O
Colour:
Pale yellow-green
Lustre:
Vitreous
Hardness:
2
Crystal System:
Monoclinic
Name:
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.


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Classification of DelrioiteHide

Approved
4.HG.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
47.1.2.1

47 : VANADIUM OXYSALTS
1 : Normal Anhydrous Vanadium Oxysalts
21.2.14

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

Physical Properties of DelrioiteHide

Vitreous
Colour:
Pale yellow-green
Hardness:

Optical Data of DelrioiteHide

Type:
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
Dispersion:
extreme

Chemical Properties of DelrioiteHide

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

Crystallography of DelrioiteHide

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

Type Occurrence of DelrioiteHide

Other Language Names for DelrioiteHide

German:Delrioit
Spanish:Delrioita

Common AssociatesHide

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

Related Minerals - Nickel-Strunz GroupingHide

4.HG.CalciodelrioiteCa(VO3)2·4H2O Mon. 2/m : B2/b
4.HG.05FervaniteFe3+4V5+4O16 · 5H2OMon.
4.HG.10HuemuliteNa4Mg(V10O28) · 24H2OTric.
4.HG.15VanaliteNaAl8V10O38 · 30H2OMon.
4.HG.20SimplotiteCaV4+4O9 · 5H2OMon.
4.HG.25VanoxiteV4+4V5+2O13 · 8H2O
4.HG.30NavajoiteFe3+V5+9O24 · 12H2OMon. 2/m : B2/m
4.HG.40MetadelrioiteCaSr(V2O6)(OH)2Tric.
4.HG.45Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
4.HG.50Hendersonite(Ca,Sr)1.3V6O16 · 6H2OOrth.
4.HG.55Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2OMon.
4.HG.60LenobliteV4+2O4 · 2H2OOrth. 2 2 2 : P21 21 21
4.HG.65SatpaeviteAl12V4+2V5+6O37 · 30H2O

Related Minerals - Dana Grouping (8th Ed.)Hide

47.1.2.2MetadelrioiteCaSr(V2O6)(OH)2Tric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.2.1MetarossiteCa(V2O6) · 2H2OTric. 1 : P1
21.2.2RossiteCa(VO3)2•4H2OTric. 1 : P1
21.2.3MetahewettiteCaV6O16 · 3H2OMon. 2/m
21.2.4HewettiteCaV6O16 · 9H2OMon. 2/m : P21/m
21.2.5PintadoiteCa2(V2O7) · 9H2O
21.2.6Hendersonite(Ca,Sr)1.3V6O16 · 6H2OOrth.
21.2.7Fernandinite(Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2OMon. 2/m : B2/m
21.2.8PascoiteCa3(V10O28) · 17H2OMon. 2 : B2
21.2.9SherwooditeCa4.5(AlV4+2V5+12O40) · 28H2OTet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.2.10MelanovanaditeCa(V5+,V4+)4O10 · 5H2OTric. 1 : P1
21.2.11Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2OMon.
21.2.12HummeriteK2Mg2(V10O28) · 16H2OTric.
21.2.13MetadelrioiteCaSr(V2O6)(OH)2Tric.
21.2.15Straczekite(Ca,K,Ba)(V5+,V4+)8O20 · 3H2OMon.
21.2.16GamagariteBa2Fe3+(VO4)2(OH)Mon. 2/m : P21/m

Other InformationHide

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 DelrioiteHide

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 DelrioiteHide

Localities for DelrioiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA
 
  • 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  
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