Schoderite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Schoderite
Formula:
Al2(PO4)(VO4) · 8H2O
Colour:
Bright yellow-orange
Hardness:
2
Specific Gravity:
1.92
Crystal System:
Monoclinic
Name:
Named after William Paul Schoder (1900-1977) research chemist, Union Carbide Nuclear Company, for his outstanding contributions to the metallurgy of vanadium.
Unique Identifiers
Mindat ID:
3572
Long-form identifier:
mindat:1:1:3572:5
GUID
(UUID V4):
(UUID V4):
583ee80a-df0a-453b-86cd-9bc91a71e063
IMA Classification of Schoderite
Approved
Approval year:
1960
First published:
1962
Classification of Schoderite
8.CE.70
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
E : With only medium-sized cations, RO4:H2O about 1:2.5
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
E : With only medium-sized cations, RO4:H2O about 1:2.5
43.3.1.1
43 : COMPOUND PHOSPHATES, ETC.
3 : Hydrated Normal Compound Phosphates, etc·
43 : COMPOUND PHOSPHATES, ETC.
3 : Hydrated Normal Compound Phosphates, etc·
21.3.4
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi
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 |
---|---|---|
Sde | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Schoderite
Transparency:
Translucent
Colour:
Bright yellow-orange
Hardness:
2 on Mohs scale
Cleavage:
Perfect
{010}
{010}
Density:
1.92(2) g/cm3 (Measured) 1.931 g/cm3 (Calculated)
Optical Data of Schoderite
Type:
Biaxial (-)
RI values:
nα = 1.560(1) nβ = 1.563(1) nγ = 1.565(1)
2V:
Measured: 42° (3), Calculated: 78°
Max Birefringence:
δ = 0.005
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:
Low
Dispersion:
none
Pleochroism:
Weak
Comments:
X = pale yellow; Y = deep yellow; Z = yellow.
Chemistry of Schoderite
Mindat Formula:
Al2(PO4)(VO4) · 8H2O
Crystallography of Schoderite
Crystal System:
Monoclinic
Cell Parameters:
a = 16.26(1) Å, b = 30.60(4) Å, c = 12.55(1) Å
β = 91.77(8)°
β = 91.77(8)°
Ratio:
a:b:c = 0.531 : 1 : 0.41
Unit Cell V:
6,241.35 ų (Calculated from Unit Cell)
Z:
18
Morphology:
Arkansas: {100}, {001}, {101}, {101}, {203}
Comment:
Point Group: 2/m or 2.; Space Group: P21/m or P21.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
16.3 Å | (100) |
15.3 Å | (70) |
7.64 Å | (35) |
5.686 Å | (25) |
5.410 Å | (25) |
2.893 Å | (35) |
2.843 Å | (25) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47c : [Carbonates, phosphates, borates, nitrates] | |
47e : [Vanadates, chromates, manganates] |
Type Occurrence of Schoderite
General Appearance of Type Material:
Yellowish orange mineral resembling variscite in samples of phosphatic chert.
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 145791, 144479.
Geological Setting of Type Material:
Vanadium phosphate deposit
Associated Minerals at Type Locality:
Reference:
Hausen, D.M. (1962) Schoderite, a new phosphovanadate mineral from Nevada. American Mineralogist: 47: 637-648.
Other Language Names for Schoderite
German:Schoderit
Spanish:Schoderita
Common Associates
Associated Minerals Based on Photo Data:
2 photos of Schoderite associated with Vanoxite | V4+4V5+2O13 · 8H2O |
1 photo of Schoderite associated with Metaschoderite | Al2(PO4)(VO4) · 6H2O |
1 photo of Schoderite associated with Vashegyite | Al11(PO4)9(OH)6 · 38H2O |
Related Minerals - Strunz-mindat Grouping
8.CE.X | Babánekite | Cu3(AsO4)2 · 8H2O |
8.CE. | Monteneroite | Cu2+Mn2+2(AsO4)2 · 8H2O |
8.CE.05 | Chudobaite | (Mg,Zn)5(AsO4)2(HAsO4)2 · 10H2O |
8.CE.05 | Geigerite | Mn2+5(AsO4)2(HAsO4)2 · 10H2O |
8.CE.10 | Newberyite | Mg(PO3OH) · 3H2O |
8.CE.15 | Brassite | Mg(HAsO4) · 4H2O |
8.CE.20 | Phosphorrösslerite | Mg(PO3OH) · 7H2O |
8.CE.20 | Rösslerite | Mg(HAsO4) · 7H2O |
8.CE.25 | Metaswitzerite | Mn2+3(PO4)2 · 4H2O |
8.CE.25 | Switzerite | Mn2+3(PO4)2 · 7H2O |
8.CE.30 | Lindackerite | CuCu4(AsO4)2(HAsO4)2 · 9H2O |
8.CE.30 | Ondrušite | CaCu4(AsO4)2(HAsO4)2 · 10H2O |
8.CE.30 | Veselovskýite | ZnCu4(AsO4)2(HAsO4)2 · 9H2O |
8.CE.30 | Pradetite | CoCu4(AsO4)2(HAsO4)2 · 9H2O |
8.CE.30 | Klajite | MnCu4(AsO4)2(HAsO4)2 · 9-10H2O |
8.CE.30 | Hloušekite | (Ni,Co)Cu4(AsO4)2(AsO3OH)2 · 9H2O |
8.CE.35 | Bobierrite | Mg3(PO4)2 · 8H2O |
8.CE.40 | Annabergite | Ni3(AsO4)2 · 8H2O |
8.CE.40 | Arupite | Ni3(PO4)2 · 8H2O |
8.CE.40 | Barićite | (Mg,Fe)3(PO4)2 · 8H2O |
8.CE.40 | Erythrite | Co3(AsO4)2 · 8H2O |
8.CE.40 | Ferrisymplesite | Fe3+3(AsO4)2(OH)3 · 5H2O |
8.CE.40 | Hörnesite | Mg3(AsO4)2 · 8H2O |
8.CE.40 | Köttigite | Zn3(AsO4)2 · 8H2O |
8.CE.40 | Manganohörnesite | Mn2+3(AsO4)2 · 8H2O |
8.CE.40 | Parasymplesite | Fe2+3(AsO4)2 · 8H2O |
8.CE.40 | Vivianite | Fe2+Fe2+2(PO4)2 · 8H2O |
8.CE.40 | Pakhomovskyite | Co3(PO4)2 · 8H2O |
8.CE.45 | Symplesite | Fe2+3(AsO4)2 · 8H2O |
8.CE.50 | Cattiite | Mg3(PO4)2 · 22H2O |
8.CE.55 | Koninckite | Fe3+PO4 · 3H2O |
8.CE.60 | Kaňkite | FeAsO4 · 3.5H2O |
8.CE.60 | Hilarionite | Fe3+2(SO4)(AsO4)(OH) · 6H2O |
8.CE.65 | Steigerite | Al(VO4) · 3H2O |
8.CE.70 | Metaschoderite | Al2(PO4)(VO4) · 6H2O |
8.CE.75 | Malhmoodite | FeZr(PO4)2 · 4H2O |
8.CE.75 | Zigrasite | MgZr(PO4)2 · 4H2O |
8.CE.75 | UM2009-11-PO:CaHZr | CaZr[PO4]2 · 4H2O |
8.CE.80 | Santabarbaraite | Fe3+3(PO4)2(OH)3 · 5H2O |
8.CE.85 | Metaköttigite | (Zn,Fe,Fe)3(AsO4)2 · 8(H2O,OH) |
8.CE.90 | Slavkovite | Cu13(AsO4)6(AsO3OH)4 · 23H2O |
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.
Internet Links for Schoderite
mindat.org URL:
https://www.mindat.org/min-3572.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Schoderite
Reference List:
(1962) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (258) 260-263 doi:10.1180/minmag.1962.033.258.09
Hausen, Donald M. (1962) Schoderite, a new phosphovanadate mineral from Nevada. American Mineralogist, 47 (5-6) 637-648
Localities for Schoderite
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.
China | |
| National Geological Archives of China ... |
USA | |
| Howard +3 other references |
| NBMG Bull 64 Geology and Mineral ... |
[Anthony (1997) | |
| www.prophecydev.com (n.d.) +3 other references |
Quick NavTopAbout SchoderiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence Other LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Gibellini Vanadium Project, Fish Creek Range, Gibellini Mining District, Eureka County, Nevada, USA