Arsenovanmeersscheite
A valid IMA mineral species
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About Arsenovanmeersscheite
Formula:
U6+(UO2)3(AsO4)2(OH)6 · 4H2O
Colour:
Yellow
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
4.91 (Calculated)
Crystal System:
Orthorhombic
Name:
Named as an arsenate equivalent of vanmeersscheite, which was named after Maurice Van Meerssche (Sint-Niklaas, Belgium, 18 April 1923 - Ottignies-Louvain-la-Neuve, Belgium,16 March 1990), Professor of Crystallography, Université Catholique de Louvain (Belgium).
This page provides mineralogical data about Arsenovanmeersscheite.
Unique Identifiers
Mindat ID:
29255
Long-form identifier:
mindat:1:1:29255:5
GUID
(UUID V4):
(UUID V4):
42f03547-1ec3-4470-bfa3-a16adde172ae
Classification of Arsenovanmeersscheite
Approved
Approval year:
2006
First published:
2007
Type description reference:
8.EC.20
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
C : UO2:RO4 = 3:2
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
C : UO2:RO4 = 3:2
42.7.14.3
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
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 |
---|---|---|
Avms | 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 Arsenovanmeersscheite
Vitreous
Transparency:
Transparent
Colour:
Yellow
Streak:
"Yellowish" (presumably pale yellow)
Hardness:
2 on Mohs scale
Cleavage:
Distinct/Good
Good on (010) and (001).
Good on (010) and (001).
Fracture:
Irregular/Uneven
Density:
4.91 g/cm3 (Calculated)
Optical Data of Arsenovanmeersscheite
Type:
Biaxial (-)
RI values:
nα = 1.725(3) nβ = 1.742(3) nγ = 1.745(3)
2V:
Calculated: 46°
Max Birefringence:
δ = 0.020
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:
High
Comments:
Anomalous interference colors
Chemical Properties of Arsenovanmeersscheite
Formula:
U6+(UO2)3(AsO4)2(OH)6 · 4H2O
IMA Formula:
U(UO2)3(AsO4)2(OH)6 · 4H2O
Elements listed:
Crystallography of Arsenovanmeersscheite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pmn21
Cell Parameters:
a = 17.36(2) Å, b = 16.96(2) Å, c = 7.02(1) Å
Ratio:
a:b:c = 1.024 : 1 : 0.414
Unit Cell V:
2,066.87 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
12.21 Å | (80) |
8.56 Å | (100) |
6.07 Å | (80) |
5.42 Å | (70) |
4.25 Å | (80) |
3.86 Å | (50) |
3.33 Å | (70) |
3.11 Å | (60) |
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] | |
47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Arsenovanmeersscheite
General Appearance of Type Material:
Crusts, on quartz, composed of lath-like crystals up to 0.1 mm.
Place of Conservation of Type Material:
State Museum of Natural History, Stuttgart, Germany.
Geological Setting of Type Material:
Secondary mineral in uranium deposit.
Associated Minerals at Type Locality:
Reference:
Walenta, K., Theye, T. (2007): Arsenovanmeersscheit, ein neues Uranmineral von der Uranlagerstätte Menzenschwand im südlichen Schwarzwald. Aufschluss, 58, 159-164.
Synonyms of Arsenovanmeersscheite
Other Language Names for Arsenovanmeersscheite
German:Arsenovanmeerscheit
Related Minerals - Strunz-mindat Grouping
8.EC.05 | Françoisite-(Nd) | (Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2O |
8.EC.05 | Phuralumite | Al2[(UO2)3(PO4)2O(OH)](OH)3(H2O)9 |
8.EC.05 | Upalite | Al(UO2)3(PO4)2O(OH) · 7H2O |
8.EC.05 | Françoisite-(Ce) | (Ce,Nd,Ca)(UO2)3(PO4)2O(OH) · 6H2O |
8.EC.10 | Arsenuranylite | Ca(UO2)4(AsO4)2(OH)4 · 6H2O |
8.EC.10 | Dewindtite | H2Pb3(UO2)6O4(PO4)4 · 12H2O |
8.EC.10 | Kivuite | Th(UO2)4(PO3OH)2(OH)8 · 7H2O |
8.EC.10 | Phosphuranylite | KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O |
8.EC.10 | Yingjiangite | K2Ca(UO2)7(PO4)4(OH)6 · 6H2O |
8.EC.10 | Renardite | Pb(UO2)4(PO4)2(OH)4 · H2O |
8.EC.15 | Dumontite | Pb2(UO2)3O2(PO4)2 · 5H2O |
8.EC.15 | Hügelite | Pb2(UO2)3(AsO4)2O2 · 5H2O |
8.EC.20 | Metavanmeersscheite | U6+(UO2)3(PO4)2(OH)6 · 2H2O |
8.EC.20 | Vanmeersscheite | U6+(UO2)3(PO4)2(OH)6 · 4H2O |
8.EC.25 | Althupite | AlTh(UO2)7(PO4)4(OH)5O2 · 15H2O |
8.EC.30 | Mundite | Al(UO2)3(PO4)2(OH)3 · 5.5H2O |
8.EC.35 | Phurcalite | Ca2(UO2)3(PO4)2O2 · 7H2O |
8.EC.40 | Bergenite | Ca2Ba4(UO2)9(PO4)6O6 · 16H2O |
Fluorescence of Arsenovanmeersscheite
Not fluorescent
Other Information
Notes:
Rapidly soluble in dilute HCl.
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 Arsenovanmeersscheite
mindat.org URL:
https://www.mindat.org/min-29255.html
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References for Arsenovanmeersscheite
Reference List:
Localities for Arsenovanmeersscheite
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.
Germany (TL) | |
|
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Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirgskreis, Saxony, Germany