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Arsenovanmeersscheite

A valid IMA mineral species
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About ArsenovanmeersscheiteHide

03970360015130029506775.jpg
Maurice Charles Florimond Van Meerssche
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 IdentifiersHide

Mindat ID:
29255
Long-form identifier:
mindat:1:1:29255:5
GUID
(UUID V4):
42f03547-1ec3-4470-bfa3-a16adde172ae

Classification of ArsenovanmeersscheiteHide

Approved
Approval year:
2006
First published:
2007
8.EC.20

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
AvmsIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ArsenovanmeersscheiteHide

Vitreous
Transparency:
Transparent
Colour:
Yellow
Streak:
"Yellowish" (presumably pale yellow)
Hardness:
Cleavage:
Distinct/Good
Good on (010) and (001).
Fracture:
Irregular/Uneven
Density:
4.91 g/cm3 (Calculated)

Optical Data of ArsenovanmeersscheiteHide

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.
Surface Relief:
High
Comments:
Anomalous interference colors

Chemical Properties of ArsenovanmeersscheiteHide

Formula:
U6+(UO2)3(AsO4)2(OH)6 · 4H2O
IMA Formula:
U(UO2)3(AsO4)2(OH)6 · 4H2O

Crystallography of ArsenovanmeersscheiteHide

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 DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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 EnvironmentHide

Type Occurrence of ArsenovanmeersscheiteHide

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 ArsenovanmeersscheiteHide

Other Language Names for ArsenovanmeersscheiteHide

Related Minerals - Strunz-mindat GroupingHide

8.EC.05Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon. 2/m
8.EC.05PhuralumiteAl2[(UO2)3(PO4)2O(OH)](OH)3(H2O)9Mon. 2/m
8.EC.05UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon. 2/m : P21/b
8.EC.05Françoisite-(Ce)(Ce,Nd,Ca)(UO2)3(PO4)2O(OH) · 6H2OMon. 2/m : P21/b
8.EC.10ArsenuranyliteCa(UO2)4(AsO4)2(OH)4 · 6H2OOrth. mmm (2/m 2/m 2/m)
8.EC.10DewindtiteH2Pb3(UO2)6O4(PO4)4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
8.EC.10KivuiteTh(UO2)4(PO3OH)2(OH)8 · 7H2O
8.EC.10PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.10YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.10RenarditePb(UO2)4(PO4)2(OH)4 · H2OOrth.
8.EC.15DumontitePb2(UO2)3O2(PO4)2 · 5H2OMon. 2/m : P21/m
8.EC.15HügelitePb2(UO2)3(AsO4)2O2 · 5H2OMon. 2/m : P21/m
8.EC.20MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
8.EC.20VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth. mmm (2/m 2/m 2/m)
8.EC.25AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2OTric. 1 : P1
8.EC.30MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
8.EC.35PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.EC.40BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2OMon. 2/m : P21/b

Fluorescence of ArsenovanmeersscheiteHide

Not fluorescent

Other InformationHide

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 ArsenovanmeersscheiteHide

References for ArsenovanmeersscheiteHide

Reference List:

Localities for ArsenovanmeersscheiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- 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.
Germany (TL)
 
  • Baden-Württemberg
    • Freiburg Region
      • Waldshut
        • St Blasien
          • Menzenschwand
 
Mineral and/or Locality  
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