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Magnesiozippeite (Magnesiozippeit)

Pictures (3 Images total)

Johannit, Magnesiozippeit
Views (File:
1444482388
): 2200
Johannit, Magnesiozippeit
Johannit (grün) neben Magnesiozippeit (gelb), Bildbreite: 5 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Elmar Lackner; Contribution: thdun5
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)
Mineral: Johannite, Magnesiozippeite
Image: 1444482388
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Johannit, Magnesiozippeit

Johannit (grün) neben Magnesiozippeit (gelb), Bildbreite: 5 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Elmar Lackner
Contribution: thdun5 2015-10-10
Locality: St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien
Magnesiozippeit, Johannit
Views (File:
1444482489
): 1494
Magnesiozippeit, Johannit
Magnesiozippeit (gelb) mit etwas Johannit (grün), Bildbreite: 5 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Elmar Lackner; Contribution: thdun5
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)
Mineral: Johannite, Magnesiozippeite
Image: 1444482489
Rating: 7 (votes: 2)
License: Usage for Mineralienatlas project only
Magnesiozippeit, Johannit

Magnesiozippeit (gelb) mit etwas Johannit (grün), Bildbreite: 5 mm, Fundort: St. Joachimsthal (Jáchymov), Region Karlsbad (Karlovarsky kraj), Tschechien
Copyright: Elmar Lackner
Contribution: thdun5 2015-10-10
Locality: St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien
MAGNESIUM-ZIPPEIT
Views (File:
1349027065
): 969
MAGNESIUM-ZIPPEIT
Grube Svornost "Einigkeit" im Revier St. Joachimsthal, Erzgebirge, (CZ) BB.: ca. 7mm
Copyright: Daniel Neumann 77; Contribution: Daniel Neumann 77
Collection: Daniel Neumann 77, Collection number: 00658.
Location: Tschechien/Karlsbad (Karlovarský kraj)/Karlsbad (Okres Karlovy Vary)/St. Joachimsthal (Jáchymov)/Einigkeit (Svornost)
Mineral: Magnesiozippeite
Image: 1349027065
License: Usage for Mineralienatlas project only
MAGNESIUM-ZIPPEIT (SNr: 00658.)

Grube Svornost "Einigkeit" im Revier St. Joachimsthal, Erzgebirge, (CZ) BB.: ca. 7mm
Collection: Daniel Neumann 77
Copyright: Daniel Neumann 77
Contribution: Daniel Neumann 77 2012-09-30
Locality: Einigkeit (Svornost) / St. Joachimsthal (Jáchymov) / Karlsbad (Okres Karlovy Vary) / Karlsbad (Karlovarský kraj) / Tschechien

Collectors Summary

Color gelb
Streak color gelblichweiß
Hardness (Mohs) 2
Solubility +++ Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

Mg(UO2)2(SO4)O2·3.5H2O

Additional chem. information

vollständige Mischbarkeit zwischen Magnesiozippeit, Cobaltzippeit und Nickelzippeit

Chemical composition

Magnesium, Sauerstoff, Schwefel, Uran, Wasserstoff

Unit weight: 755.47632 u; Number of atoms in the formula: 24.5

Info

Empirical formula:

Mg(UO2)2(SO4)O2·3.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.93

7

28.57

1.0079470

7.0556290
Oxygen

O

28.59

13.5

55.10

15.9994300

215.9923050
Magnesium

Mg

3.22

1

4.08

24.3050600

24.3050600
Sulfur

S

4.24

1

4.08

32.0655000

32.0655000
Uranium

U

63.01

2

8.16

238.0289130

476.0578260

Analysis wt%

MgO : 5.31, UO3 : 75.85, SO3 : 10.54, H2O : 8.30 (Ref: berechnet)

Strunz 9th edition incl. updates

7.EC.05

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
E: Uranylsulfate
C: Mit mittelgroßen und großen [Kationen]
05:Zippeit-Gruppe

Lapis Classification

VI/D.20-075

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
20: Uranylsulfate [UO2] 2+ – [SO4] 2-

Classification by Hölzel

7.ED.140

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
E: Uranyl-Sulfates
D: Uranyl-Sulfates (+Anions +Water)

Dana 8th edition

31.10.04.03

31: Hydrated Sulfates Containing Hydroxyl or Halogen
10: Hydrated Sulfates Containing Hydroxyl or Halogen miscellaneous
04: Zippeite Group

IMA status

Redefinition von der IMA anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zippeite group

Optical Properties

Color

gelb

Streak color

gelblichweiß

max. Birefringence

0.10
Birefringence chart\! Magnesiozippeite title=Birefringence chart Magnesiozippeite

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

1.72

RI value β

1.75

RI value γ / ε

1.82

Ri mean

1.763

2V angle

Biaxial (+) 70°

Optical Data Luminescence

Color LW-UV (365nm)

  

grün

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

8.654

Cell parameters b (Å)

14.182

Cell parameters c (Å)

17.714

Cell parameters a/b or c/a

0.610

Cell parameters c/b

1.249

Cell parameters α

90°

Cell parameters β

103.92

Cell parameters γ

90°

Z

8

Volume (ų)

2110.211

X-Ray Powder Diffraction

8.59(50),
7.14(100),
3.562(40),
3.453(80),
3.116(80),
2.858(50),
2.648(50),
2.481(40)
XRD chart Magnesiozippeite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.756 (berechnet)

4.756 ( ρ calc. Mineralienatlas )

Radioactivity

ja

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Utah/Emery County/San Rafael District/Lucky Strike No. 2 mine

Preface

Author (Name, Year)

Frondel & Ito & Honea & Weeks, 1976

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

Canadian Mineralogist 14 (1976), 429-436.

Journal of the Czech Geological Society, Prague 42(4)(1997), 31-32.

Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist 43, 1839-1894.

American Mineralogist 88 (2003), 676.

Canadian Mineralogist 41 (2003), 687.

American Mineralogist 89 (2004), 253.

Jakub Plášil, Karla Fejfarová, Radek Škoda, Michal Dušek, Joe Marty, Jiří Čejka: The crystal structure of magnesiozippeite, Mg[(UO2)2O2(SO4)](H2O)3.5, from East Saddle Mine, San Juan County, Utah (U.S.A.). Mineralogy and Petrology Vol. 107, Issue 2 (2013) S. 211 - 219.

IMA group assignments

Other languages

German

Magnesiozippeit

English

Magnesiozippeite

Spanish

Magnesiozippeíta

Russian

Магнийциппеит

old name

French

Magnesium zippeite

German

Magnesium-Zippeit

English

Magnesium-zippeite

Alternative Name

German

Magnesiumzippeit

CNMNC (IMA)-Number

IMA 1971-007

IMA 2000-G

CNMNC symbol

Symbol

Mzip

Locations with GPS information

IDs

GUSID (Global unique identifier short form) G2ZmoCa0oUCAtTb6pHBksw
GUID (Global unique identifier) A066661B-B426-40A1-80B5-36FAA47064B3
Database ID 2321