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Mcgovernite (Mcgovernit)

Pictures (6 Images total)

Mcgovernit
Views (File:
1333900057
): 1152
Mcgovernit
Sterling Hill Mine,Ogdensburg/New Jersey USA; Bildbreite 15 mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill
Mineral: Mcgovernite
Image: 1333900057
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Mcgovernit

Sterling Hill Mine,Ogdensburg/New Jersey USA; Bildbreite 15 mm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2012-04-08
Locality: Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Mcgovernit
Views (File:
1274607243
): 754
Mcgovernit
Mcgovernit neben Calcit. Bildbreite: 3 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Public Domain; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Mcgovernite
Image: 1274607243
Rating: 6 (votes: 2)
License: Usage for Mineralienatlas project only
Mcgovernit

Mcgovernit neben Calcit. Bildbreite: 3 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Public Domain
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Mcgovernit
Views (File:
1274607084
): 652
Mcgovernit
Mcgovernit neben Calcit. Größe: 1,5 x 4 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Public Domain; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Mcgovernite
Image: 1274607084
Rating: 6 (votes: 1)
License: Public Domain
Mcgovernit

Mcgovernit neben Calcit. Größe: 1,5 x 4 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Public Domain
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
McGovernit
Views (File:
1322113410
): 625
McGovernit
Größe: 16,5 x 13,0 cm; Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rock Currier; Contribution: slugslayer
Collection: Ewald Gerstmann
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Mcgovernite
Image: 1322113410
Rating: 5 (votes: 1)
License: Usage for Mineralienatlas project only
McGovernit

Größe: 16,5 x 13,0 cm; Fundort: Sterling Mine, Franklin, New Jersey, USA
Collection: Ewald Gerstmann
Copyright: Rock Currier
Contribution: slugslayer 2011-11-24
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Mcgovernit
Views (File:
1274606865
): 618
Mcgovernit
Größe: 12,5 x 6,5 x 6,2 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rob Lavinsky; Contribution: thdun5
Location: USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine
Mineral: Mcgovernite
Image: 1274606865
License: Usage for Mineralienatlas project only
Mcgovernit

Größe: 12,5 x 6,5 x 6,2 cm, Fundort: Sterling Mine, Franklin, New Jersey, USA
Copyright: Rob Lavinsky
Contribution: thdun5 2010-05-23
Locality: Sterling Mine / Sterling Hill / Ogdensburg / Franklin Mining District / Sussex Co. / New Jersey / USA
Ribbeit, McGovernit, Galaxit
Views (File:
1679295293
): 11
Ribbeit, McGovernit, Galaxit
Diese etwa 14 mm x 13 mm große Stufe aus der Kombat Mine in Namibia zeigt rosafarbenen Ribbeit, bräunlichen McGovernit und schwarzen Galaxit.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: SyS-Ribb-2-2-1
Location: Namibia/Otjozondjupa, Region/Grootfontein, Kreis/Kombat Mine
Mineral: Galaxite, Mcgovernite, Ribbeite
Image: 1679295293
License: Usage for Mineralienatlas project only
Ribbeit, McGovernit, Galaxit (SNr: SyS-Ribb-2-2-1)

Diese etwa 14 mm x 13 mm große Stufe aus der Kombat Mine in Namibia zeigt rosafarbenen Ribbeit, bräunlichen McGovernit und schwarzen Galaxit.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2023-03-20
Locality: Kombat Mine / Grootfontein, Kreis / Otjozondjupa, Region / Namibia

Collectors Summary

Color rötlichbraun
Solubility +++ Säuren
Crystal System trigonal, R3c

Chemism

Chemical formula

(Mn,Mg,Zn)22(AsO3)(AsO4)3(SiO4)3(OH)21

Chemical composition

Arsen, Magnesium, Mangan, Silicium, Zink, Sauerstoff, Wasserstoff

Unit weight: 2202.57885968 u; Number of atoms in the formula: 98

Info

Empirical formula:

(Mn0.6Mg0.3Zn0.1)22(AsO3)(AsO4)3(SiO4)3(OH)21

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.96

21

21.43

1.0079470

21.1668870
Oxygen

O

34.87

48

48.98

15.9994300

767.9726400
Magnesium

Mg

7.28

6.6

6.73

24.3050600

160.4133960
Silicon

Si

3.83

3

3.06

28.0855300

84.2565900
Manganese

Mn

32.92

13.2

13.47

54.9380499

725.1822587
Zinc

Zn

6.53

2.2

2.24

65.4094000

143.9006800
Arsenic

As

13.61

4

4.08

74.9216020

299.6864080

Strunz 9th edition incl. updates

8.BE.45

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
E: Mit ausschließlich mittelgroßen [Kationen] (OH, etc.):RO4 > 2:1
45:Hämatolith-Gruppe

Lapis Classification

VIII/B.11-020

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen

Classification by Hölzel

9.AJ.240

9: SILICATES
A: Nesosilicates
J: Nesosilicates with other complex Anions
2: With ~[AsO3],~[AsO4]

Dana 8th edition

43.04.09.01

43: Compound Phosphates, etc.
04: Compound Phosphates, etc. (Anhydrous Compound Anions With Hydroxyl or Halogen)
09: Mcgovernite Group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

rötlichbraun

RI value α / ω / n

1.761

2V angle

Uniaxial (+)

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

167

Space Group

R3c

Cell parameters a (Å)

8.22

Cell parameters b (Å)

-

Cell parameters c (Å)

205.5!

Cell parameters a/b or c/a

25.000!

Cell parameters c/b

-

Z

12

Volumne (ų)

12025.028

X-Ray Powder Diffraction

11.205(30),
5.630(70),
4.832(20),
4.228(40),
2.819(30),
2.604(50),
2.418(80),
2.257(100)
XRD chart Mcgovernite

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

Crystals 3D

Open larger view

Physical Properties

Density (g/cm³)

3.719 (gemessen)

3.65 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/New Jersey/Sussex Co./Franklin Mining District/Ogdensburg/Sterling Hill/Sterling Mine

Preface

Author (Name, Year)

Palache & Bauer, 1927

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 527

Other languages

German

Mcgovernit

Spanish

Mcgovernita

French

Mcgovernite

English

Mcgovernite

Japanese

ﾏｯｸｶﾞﾊﾞｰﾝ鉱

CNMNC symbol

Symbol

Mgv

Locations with GPS information