Metadelrioite
A valid IMA mineral species
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About Metadelrioite
Formula:
CaSr(V2O6)(OH)2
Colour:
Light yellow-green to darker green on exposed surfaces,
Lustre:
Vitreous, Pearly
Hardness:
2
Specific Gravity:
4.3
Crystal System:
Triclinic
Name:
Named for being dehydrated (meta) delrioite.
This page provides mineralogical data about Metadelrioite.
Unique Identifiers
Mindat ID:
2671
Long-form identifier:
mindat:1:1:2671:6
IMA Classification of Metadelrioite
Approved
IMA Formula:
SrCa(V5+O3)2(OH)2
Approval year:
1967
First published:
1970
Classification of Metadelrioite
4.HG.40
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
47.1.2.2
47 : VANADIUM OXYSALTS
1 : Normal Anhydrous Vanadium Oxysalts
47 : VANADIUM OXYSALTS
1 : Normal Anhydrous Vanadium Oxysalts
21.2.13
21 : Vanadates (and vanadates with arsenate or phosphate)
2 : Vanadates of Mg, Ca, Sr or Ba
21 : Vanadates (and vanadates with arsenate or phosphate)
2 : Vanadates of Mg, Ca, Sr or Ba
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 for Standard |
|---|---|---|
| Mdlr | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Metadelrioite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Metadelrioite
Vitreous, Pearly
Transparency:
Translucent
Colour:
Light yellow-green to darker green on exposed surfaces,
Comment:
probably the result of photoreduction of some of the vanadium.
Hardness:
2 on Mohs scale
Density:
4.3 g/cm3 (Measured) 4.21 g/cm3 (Calculated)
Optical Data of Metadelrioite
Type:
Biaxial (-)
RI values:
nα = 1.783(3) nβ = 1.834(3) nγ = 1.866(3)
Max. Birefringence:
δ = 0.083
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Pleochroism:
Weak
Comments:
X = colorless; Y = pale yellow; Z = deeper yellow
Comments:
properties composite with delrioite
2V(meas.) = Medium to large.
2V(meas.) = Medium to large.
Chemistry of Metadelrioite
Mindat Formula:
CaSr(V2O6)(OH)2
Element Weights:
Crystallography of Metadelrioite
Crystal System:
Triclinic
Cell Parameters:
a = 7.343(7) Å, b = 8.382(3) Å, c = 5.117(4) Å
α = 111.67(2)°, β = 90.27°, γ = 102.82°
α = 111.67(2)°, β = 90.27°, γ = 102.82°
Ratio:
a:b:c = 0.876 : 1 : 0.61
Unit Cell V:
284.08 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Intimately intergrown in parallel orientation with delrioite, in radial fibrous aggregates of tiny acicular crystals.
Comment:
Point Group: 1 or 1; Space Group: P1 or P1.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.94 Å | (s) |
| 3.46 Å | (s) |
| 4.73 Å | (ms) |
| 2.683 Å | (ms) |
| 2.547 Å | (m) |
| 2.516 Å | (m) |
| 1.885 Å | (m) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 55 : Anthropogenic mine minerals |
Type Occurrence of Metadelrioite
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 128296.
Geological Setting of Type Material:
efflorescence on sandstone
Associated Minerals at Type Locality:
Synonyms of Metadelrioite
Other Language Names for Metadelrioite
Common Associates
Related Minerals - Strunz-mindat Grouping
| 4.HG. | Calciodelrioite | Ca(VO3)2 · 4H2O |
| 4.HG. | Trebiskyite | Na3Mg2[TiV9O28] · 22H2O |
| 4.HG. | Cadvanite | Cd(VO3)2 |
| 4.HG.05 | Fervanite | Fe3+4V5+4O16 · 5H2O |
| 4.HG.10 | Huemulite | Na4Mg(V10O28) · 24H2O |
| 4.HG.15 | Vanalite | NaAl9V12O42(OH)4 · 33H2O |
| 4.HG.20 | Simplotite | CaV4+4O9 · 5H2O |
| 4.HG.25 | Vanoxite | V4+4V5+2O13 · 8H2O |
| 4.HG.30 | Navajoite | Fe3+V5+9O24 · 12H2O |
| 4.HG.35 | Delrioite | Sr(VO3)2 · 4H2O |
| 4.HG.45 | Barnesite | (Na,Ca)V6O16 · 3H2O |
| 4.HG.50 | Hendersonite | (Ca,Sr)1.3V6O16 · 6H2O |
| 4.HG.55 | Grantsite | (Na,Ca)2+x(V5+,V4+)6O16 · 4H2O |
| 4.HG.60 | Lenoblite | V4+2O4 · 2H2O |
| 4.HG.65 | Satpaevite | Al12V4+2V5+6O37 · 30H2O |
| 4.HG.70 | Pandoraite-Ba | BaV4+5V5+2O16 · 3H2O |
| 4.HG.70 | Pandoraite-Ca | CaV4+5V5+2O16 · 3H2O |
Other Information
Notes:
Readily soluble in H2O.
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 Metadelrioite
mindat.org URL:
https://www.mindat.org/min-2671.html
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Please feel free to link to this page.
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References for Metadelrioite
Localities for Metadelrioite
Showing 2 localities.
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| Smith (1970) +1 other reference |
| Castor et al. (2004) |
Quick NavTopAbout MetadelrioiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Pahranagat Mining District, Lincoln County, Nevada, USA