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Vanmeersscheite (Vanmeersscheit)

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Vanmeersscheit
Views (File:
1360600248
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Vanmeersscheit
Bildbreite: 2 mm, Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Waldshut, Landkreis/St. Blasien/Menzenschwand/Krunkelbach
Mineral: Vanmeersscheite
Image: 1360600248
License: Usage for Mineralienatlas project only
Vanmeersscheit

Bildbreite: 2 mm, Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland
Copyright: Luigi Chiappino
Contribution: thdun5 2013-02-11
Locality: Krunkelbach / Menzenschwand / St. Blasien / Waldshut, Landkreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Vanmeersscheit
Views (File:
1360600219
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Vanmeersscheit
Bildbreite: 2 mm, Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland
Copyright: Luigi Chiappino; Contribution: thdun5
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Waldshut, Landkreis/St. Blasien/Menzenschwand/Krunkelbach
Mineral: Vanmeersscheite
Image: 1360600219
Rating: 3 (votes: 1)
License: Usage for Mineralienatlas project only
Vanmeersscheit

Bildbreite: 2 mm, Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland
Copyright: Luigi Chiappino
Contribution: thdun5 2013-02-11
Locality: Krunkelbach / Menzenschwand / St. Blasien / Waldshut, Landkreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland

Collectors Summary

Color kanariengelb
Streak color blassgelb
Hardness (Mohs) 2.00 - 3.00
Solubility +++ Säuren
Crystal System orthorhombisch, P21mn

Chemism

Chemical formula

U6+(UO2)3(PO4)2(OH)6·4H2O

Chemical composition

Phosphor, Sauerstoff, Uran, Wasserstoff

Unit weight: 1412.1607524 u; Number of atoms in the formula: 44

Info

Empirical formula:

U(UO2)3(PO4)2(OH)6·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.00

14

31.82

1.0079470

14.1112580
Oxygen

O

27.19

24

54.55

15.9994300

383.9863200
Phosphorus

P

4.39

2

4.55

30.9737612

61.9475224
Uranium

U

67.42

4

9.09

238.0289130

952.1156520

Strunz 9th edition incl. updates

8.EC.20

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
C: UO2:RO4 = 3:2
20:Vanmeersscheit-Gruppe

Lapis Classification

VII/E.07-140

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
E: Uranyl-Phosphate/Arsenate und Uranyl-Vanadate mit [UO2] 2+- [PO4]/[AsO4] 3- und [UO2] 2+-[V2O8] 6-, sowie isotype Vanadate (Sincosit-Reihe)

Classification by Hölzel

8.EB.610

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
B: Orthorhombic Uranyl (Phosphates-Arsenates)
6: Without Cations Vanmeersscheite-Group

Dana 8th edition

42.07.14.01

42: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
07: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen where (AB)5 (XO4)3 Zq · x(H2O)
14: Vanmeersscheite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

kanariengelb

Streak color

blassgelb

max. Birefringence

0.014
Birefringence chart\! Vanmeersscheite title=Birefringence chart Vanmeersscheite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.704

RI value β

1.715

RI value γ / ε

1.718

Ri mean

1.712

2V angle

Biaxial (-) 56°

Optical Data Luminescence

Color LW-UV (365nm)

  

grün

LW-UV Intensity

stark

Color SW-UV (254nm)

  

grün

SW-UV Intensity

stark

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

Mit bloßem Auge konnte keine Phosphoreszenz festgestellt werden.

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

31

Space Group

P21mn

Cell parameters a (Å)

17.06

Cell parameters b (Å)

16.76

Cell parameters c (Å)

7.023

Cell parameters a/b or c/a

1.018

Cell parameters c/b

0.419

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

2008.055

X-Ray Powder Diffraction

8.39(100),
5.96(80),
5.30(50),
4.18(70),
3.905(50),
3.511(50),
3.069(70),
2.887(70)
XRD chart Vanmeersscheite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.00 - 3.00

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.67 (berechnet)

4.671 ( ρ calc. Mineralienatlas )

Radioactivity

das Mineral ist radioaktiv!

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Süd-Kivu, Provinz/Kobokobo-Pegmatit

Preface

Author (Name, Year)

Piret & Deliens, 1982

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Bulletin de Minéralogie 105 (1982), 125

Other languages

German

Vanmeersscheit

English

Vanmeersscheite

French

Vanmeersscheite

Spanish

Vanmeersscheíta

Alternative Name

Simplified Chinese

磷铀矿

CNMNC (IMA)-Number

IMA 1981-009

CNMNC symbol

Symbol

Vms

Locations with GPS information