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Fritzscheite (Fritzscheit)

Collectors Summary

Color rot, rötlichbraun
Streak color bräunlich weiß
Hardness (Mohs) 3
Solubility +++ Säuren
Crystal System orthorhombisch, Pnam

Chemism

Chemical formula

Mn(UO2)2[(P,V)O4]2·10H2O

Chemical composition

Mangan, Phosphor, Sauerstoff, Uran, Vanadium, Wasserstoff

Unit weight: 975.0736727 u; Number of atoms in the formula: 47

Info

Empirical formula:

Mn(UO2)2[(P0.75V0.25)O4]2·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.07

20

42.55

1.0079470

20.1589400
Oxygen

O

36.10

22

46.81

15.9994300

351.9874600
Phosphorus

P

4.76

1.5

3.19

30.9737612

46.4606418
Vanadium

V

2.61

0.5

1.06

50.9415100

25.4707550
Manganese

Mn

5.63

1

2.13

54.9380499

54.9380499
Uranium

U

48.82

2

4.26

238.0289130

476.0578260

Analysis wt%

MnO : 7.87, UO3 : 63.94, V2O5 : 20.19, H2O : 7.10 (Ref: Bulletin de Mineralogie 70)

Strunz 9th edition incl. updates

4.HB.15

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
B: Uranyl-Gruppenvanadate (Sorovanadate)
15:Francevillit-Gruppe

Lapis Classification

VII/E.01-060

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)
1: Autunit-Gruppe

Classification by Hölzel

8.EE.100

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
E: UranylVanadates
1: C small-medium Vanuralite-Group

Dana 8th edition

40.02a.25.01

40: Hydrated Phosphates, etc
02a: Hydrated Phosphates, etc where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

rot, rötlichbraun

Streak color

bräunlich weiß

Diaphaneity (Transparency)

durchscheinend

2V angle

Biaxial

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnam

Cell parameters a (Å)

10.59

Cell parameters b (Å)

8.25

Cell parameters c (Å)

15.54

Cell parameters a/b or c/a

1.284

Cell parameters c/b

1.884

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

1357.691

X-Ray Powder Diffraction

7.77(100),
6.52(80),
5.30(80),
4.132(90),
3.880(80),
3.251(100),
2.999(100),
2.492(70)
XRD chart Fritzscheite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.39

4.77 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen/Erzgebirgskreis/Johanngeorgenstadt/Grube Georg Wagsfort

Tschechien/Karlsbad (Karlovarsky kraj)/Karlsbad (Karlovy Vary), Bezirk/Neudeck (Nejdek)

Preface

Author (Name, Year)

Breithaupt, 1865

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 la Société Française Minéralogie et de Cristallographie 93 (1970), 320

Other languages

German

Fritzscheit

Spanish

Fritzscheita

English

Fritzscheite

French

Fritzscheite

Russian

Фритцшеит

CNMNC symbol

Symbol

Fzs

Locations with GPS information