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Delrioite

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Pahranagat District, Lincoln Co., Nevada, USA
© 2007, JGW




Formula:
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
System:MonoclinicColour:Pale yellow-green
Lustre:VitreousHardness:2
Name: Named after A.M. del Rio (1764-1849), who in 1801 announced
the discovery of a new element, erythronium (turned out to be vanadium)
This page provides mineralogical data about Delrioite.

Classification of Delrioite

IMA status:Approved
Strunz 8th edition ID:4/G.07-70
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:47.1.2.1

47 : VANADIUM OXYSALTS
1 : Normal Anhydrous Vanadium Oxysalts
Hey's CIM Ref.:21.2.14

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

Type Locality:Jo Dandy Mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Year of Discovery:1959

Physical Properties of Delrioite

Lustre:Vitreous
Colour:Pale yellow-green
Hardness (Mohs):2

Crystallography of Delrioite

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

Optical Data of Delrioite

Type:Biaxial (-)
RI values: nα = 1.783 nβ = 1.834 nγ = 1.866
Maximum Birefringence:δ = 0.083

Chart 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 Delrioite

Formula:
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
Essential elements:Ca, H, O, Sr, V
All elements listed in formula:Ca, H, O, Sr, V

Relationship of Delrioite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.HG.05Fervanite
Fe
3+
4
V
5+
4
O
 
16
 · 5H
 
2
O
4.HG.10Huemulite
Na
 
4
Mg(V
 
10
O
 
28
) · 24H
 
2
O
4.HG.15Vanalite
NaAl
 
8
V
 
10
O
 
38
 · 30H
 
2
O
4.HG.20Simplotite
CaV
4+
4
O
 
9
 · 5H
 
2
O
4.HG.25Vanoxite
V
4+
4
V
5+
2
O
 
13
 · 8H
 
2
O
4.HG.30Navajoite
Fe
3+
 
V
5+
9
O
 
24
 · 12H
 
2
O
4.HG.40Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
4.HG.45Barnesite
(Na,Ca)V
 
6
O
 
16
 · 3H
 
2
O
4.HG.50Hendersonite
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
4.HG.55Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
4.HG.60Lenoblite
V
4+
2
O
 
4
 · 2H
 
2
O
4.HG.65Satpaevite
Al
 
12
V
4+
2
V
5+
6
O
 
37
 · 30H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
21.2.1Metarossite
Ca(V
 
2
O
 
6
) · 2H
 
2
O
21.2.2Rossite
Ca(V
 
2
O
 
6
) · 4H
 
2
O
21.2.3Metahewettite
CaV
 
6
O
 
16
 · 3H
 
2
O
21.2.4Hewettite
CaV
 
6
O
 
16
 · 9H
 
2
O
21.2.5Pintadoite
Ca
 
2
(V
 
2
O
 
7
) · 9H
 
2
O
21.2.6Hendersonite
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
21.2.7Fernandinite
(Ca,K)(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
8
O
 
20
 · 10H
 
2
O
21.2.8Pascoite
Ca
 
3
(V
 
10
O
 
28
) · 17H
 
2
O
21.2.9Sherwoodite
Ca
 
4.5
(AlV
4+
2
V
5+
12
O
 
40
) · 28H
 
2
O
21.2.10Melanovanadite
Ca
 
2
(V
5+
 
,V
4+
 
)
 
4
O
 
10
 · 5H
 
2
O
21.2.11Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
21.2.12Hummerite
K
 
2
Mg
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
21.2.13Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
21.2.15Straczekite
(Ca,K,Ba)(V
5+
 
,V
4+
 
)
 
8
O
 
20
 · 3H
 
2
O
21.2.16Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)

Other Names for Delrioite

Other Languages:
German:Delrioit
Spanish:Delrioita

Other Information

Health Warning: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:

- +
American Mineralogist: 44: 261-264.

American Mineralogist: 55: 185-200.

Internet Links for Delrioite

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    • Localities for Delrioite

    Hide Locality List
    (TL) indicates type locality. ? 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.
    USA
     
    • Colorado
      • Montrose Co.
        • Uravan District
          • Paradox Valley
    		Amer.Min.(1959) 44, 261-264
    • Nevada
      • Lincoln Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
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