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
GUID
(UUID V4):
(UUID V4):
12e63b6d-4534-416c-ba6d-a9786ff35a1f
IMA Classification of Metadelrioite
Approved
IMA Formula:
SrCa(VO3)2(OH)2
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 |
---|---|---|
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
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
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
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:
Reference:
Smith, M.L. (1970) Delrioite and metadelrioite from Montrose County, Colorado. American Mineralogist: 55: 185-200.
Synonyms of Metadelrioite
Other Language Names for Metadelrioite
German:Metadelrioit
Spanish:Metadelrioita
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
4.HG. | Calciodelrioite | Ca(VO3)2 · 4H2O |
4.HG. | Trebiskyite | Na3Mg2[TiV9O28] · 22H2O |
4.HG.05 | Fervanite | Fe3+4V5+4O16 · 5H2O |
4.HG.10 | Huemulite | Na4Mg(V10O28) · 24H2O |
4.HG.15 | Vanalite | NaAl8V10O38 · 30H2O |
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 | CaSr(V2O6)(OH)2 · 3H2O |
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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References for Metadelrioite
Localities for Metadelrioite
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) | |
| Smith (1970) +1 other reference |
| Castor et al. (2004) |
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Pahranagat Mining District, Lincoln County, Nevada, USA