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Groutite (Groutit)

Pictures (30 Images total)

Groutit xx
Views (File:
1676912317
): 117
Groutit xx
auf Erzschalengeröll von der ⚒ Emilie, Bülten-Adenstedt, Peine, Niedersachsen, DE, Bildbreite ca.11mm
Copyright: harzer; Contribution: harzer
Collection: harzer
Location: Deutschland/Niedersachsen/Peine, Landkreis/Bülten-Adenstedt/Grube Emilie (Grube Bülten-Adenstedt)
Mineral: Groutite
Image: 1676912317
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Groutit xx

auf Erzschalengeröll von der ⚒ Emilie, Bülten-Adenstedt, Peine, Niedersachsen, DE, Bildbreite ca.11mm
Collection: harzer
Copyright: harzer
Contribution: harzer 2023-02-20
Locality: Grube Emilie (Grube Bülten-Adenstedt) / Bülten-Adenstedt / Peine, Landkreis / Niedersachsen / Deutschland
Groutit xx
Views (File:
1676912359
): 139
Groutit xx
auf Erzschalengeröll von der ⚒ Emilie, Bülten-Adenstedt, Peine, Niedersachsen, DE, Stufenbreite ca.7cm
Copyright: harzer; Contribution: harzer
Collection: harzer
Location: Deutschland/Niedersachsen/Peine, Landkreis/Bülten-Adenstedt/Grube Emilie (Grube Bülten-Adenstedt)
Mineral: Groutite
Image: 1676912359
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Groutit xx

auf Erzschalengeröll von der ⚒ Emilie, Bülten-Adenstedt, Peine, Niedersachsen, DE, Stufenbreite ca.7cm
Collection: harzer
Copyright: harzer
Contribution: harzer 2023-02-20
Locality: Grube Emilie (Grube Bülten-Adenstedt) / Bülten-Adenstedt / Peine, Landkreis / Niedersachsen / Deutschland
Groutit
Views (File:
1195849798
): 3505, Rating: 9.22
Groutit
Fundort: Black Water Mine, Black Mesa Basin, Apache Co., Arizona, USA; Bildbreite: 6 mm
Copyright: Christian Rewitzer; Contribution: Klinoklas
Location: USA/Arizona/Apache Co./Navajo-Nation/Black Mesa/Black Water Mine
Mineral: Groutite
Image: 1195849798
Rating: 9.22 (votes: 9)
License: Usage for Mineralienatlas project only
Groutit

Fundort: Black Water Mine, Black Mesa Basin, Apache Co., Arizona, USA; Bildbreite: 6 mm
Copyright: Christian Rewitzer
Contribution: Klinoklas 2007-11-23
Locality: Black Water Mine / Black Mesa / Navajo-Nation / Apache Co. / Arizona / USA
Groutit
Views (File:
1239114313
): 3743, Rating: 9.25
Groutit
Bildbreite: 4,5 mm; Fundort: Zavalye, Hajworon, Kirowohrod Oblast, Ukraine
Copyright: Dominik Schläfli; Contribution: Philip Blümner
Location: Ukraine/Kirowohrad, Oblast/Hajworon (Haivoron), Rajon/Sawallja (Zavalye)
Mineral: Groutite
Image: 1239114313
Rating: 9.25 (votes: 8)
License: Usage for Mineralienatlas project only
Groutit

Bildbreite: 4,5 mm; Fundort: Zavalye, Hajworon, Kirowohrod Oblast, Ukraine
Copyright: Dominik Schläfli
Contribution: Philip Blümner 2009-04-07
Locality: Sawallja (Zavalye) / Hajworon (Haivoron), Rajon / Kirowohrad, Oblast / Ukraine
Groutit xx
Views (File:
1473507894
): 3004, Rating: 9.17
Groutit xx
Mit Barytröschen; FO: Gr. Emilie/Bülten-Adenstedt; Bildbreite ca. 8mm
Copyright: etalon; Contribution: etalon
Collection: etalon
Location: Deutschland/Niedersachsen/Peine, Landkreis/Bülten-Adenstedt/Grube Emilie (Grube Bülten-Adenstedt)
Mineral: Baryte, Groutite
Image: 1473507894
Rating: 9.17 (votes: 6)
License: Usage for Mineralienatlas project only
Groutit xx

Mit Barytröschen; FO: Gr. Emilie/Bülten-Adenstedt; Bildbreite ca. 8mm
Collection: etalon
Copyright: etalon
Contribution: etalon 2016-09-10
Locality: Grube Emilie (Grube Bülten-Adenstedt) / Bülten-Adenstedt / Peine, Landkreis / Niedersachsen / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color blauschwarz
Streak color dunkelbraun
Hardness (Mohs) 5.5
Solubility +++ Säuren
Crystal System orthorhombisch, Pbnm

Chemism

Chemical formula

Mn3+O(OH)

Chemical composition

Mangan, Sauerstoff, Wasserstoff

Unit weight: 87.9448569 u; Number of atoms in the formula: 4

Info

Empirical formula:

MnO(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.15

1

25.00

1.0079470

1.0079470
Oxygen

O

36.39

2

50.00

15.9994300

31.9988600
Manganese

Mn

62.47

1

25.00

54.9380499

54.9380499

Analysis wt%

Mn2O3 : 89.76, H2O : 10.24 (Ref: berechnet)

Strunz 9th edition incl. updates

4.FD.10

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
F: Hydroxide (ohne V oder U)
D: Hydroxide mit OH, ohne H2O; Ketten aus kantenverknüpften Oktaeder
10:Diaspor-Gruppe

Lapis Classification

IV/F.06-080

IV: OXIDE
F: Hydroxide und oxidische Hydrate (wasserhaltige Oxide mit Schichtstruktur)

Classification by Hölzel

4.FC.250

4: OXIDES
F: Hydroxides and Hydrates (without V and U)
C: Oxihydroxides
2: MeO(OH) Diaspore-Group

Dana 8th edition

06.01.01.03

06: Hydroxides and Oxides Containing Hydroxyl
01: Hydroxides and Oxides Containing Hydroxyl where X+++O OH
01: Diaspore group (Orthorhombic, Pnma or Pnmd)

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

blauschwarz

Streak color

dunkelbraun

Diaphaneity (Transparency)

opak

RI value α / ω / n

2.10

RI value γ / ε

2.20

2V angle

Biaxial (+) mod

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pbnm

Cell parameters a (Å)

4.56

Cell parameters b (Å)

10.70

Cell parameters c (Å)

2.85

Cell parameters a/b or c/a

0.426

Cell parameters c/b

0.266

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

139.057

X-Ray Powder Diffraction

4.18(100),
2.784(80),
2.643(80),
2.375(70),
2.288(80),
1.695(80),
1.599(70),
1.507(60)
XRD chart Groutite

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)

5.5

VHN (Hardness Vickers)

671 (100g)

Density (g/cm³)

4.144

4.2 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Minnesota/Crow Wing Co./Cuyuna North Range/Ironton/Mahnomen pit

USA/Minnesota/Crow Wing Co./Cuyuna North Range/Ironton/Sagamore Mangan No. 2 pit

Preface

Author (Name, Year)

Gruner, 1945

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 229

Varieties

Groutellite

Groutellit = Pseudomorph von Ramsdellit nach Groutit

Other languages

German

Groutit

Spanish

Groutita

French

Groutite

English

Groutite

Russian

Гроутит

Simplified Chinese

锰榍石

Japanese

ｸﾞﾗｳﾄ鉱

CNMNC symbol

Symbol

Gro

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 3q-42QIb3EC8DJhRehKorw
GUID (Global unique identifier) D9B8AFDE-1B02-40DC-BC0C-98517A12A8AF
Database ID 1462