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Cobaltlotharmeyerite

Pictures (19 Images total)

Cobaltlotharmeyerit xx
Views (File:
1153330301
): 3356
Cobaltlotharmeyerit xx
Bildbreite: 3mm; Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Stephan Wolfsried; Contribution: Philip Blümner
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobaltlotharmeyerite
Image: 1153330301
Rating: 8.67 (votes: 3)
License: Usage for Mineralienatlas project only
Cobaltlotharmeyerit xx

Bildbreite: 3mm; Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Stephan Wolfsried
Contribution: Philip Blümner 2006-07-19
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland
Cobaltlotharmeyerit
Views (File:
1629554762
): 153
Cobaltlotharmeyerit
BB: 1,32 mm; Cobaltlotharmeyerit, Quarz, Ahbar Mine, Bou Azer District, Tazenakht, Marokko
Copyright: Harald Biecker; Contribution: Harald Biecker
Location: Marokko/Drâa-Tafilalet, Region/Zagora, Provinz/Agdz, Cercle/Aghbar/Aghbar Mine (Arhbar Mine)
Mineral: Cobaltlotharmeyerite
Image: 1629554762
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Cobaltlotharmeyerit

BB: 1,32 mm; Cobaltlotharmeyerit, Quarz, Ahbar Mine, Bou Azer District, Tazenakht, Marokko
Copyright: Harald Biecker
Contribution: Harald Biecker 2021-08-21
Locality: Aghbar Mine (Arhbar Mine) / Aghbar / Agdz, Cercle / Zagora, Provinz / Drâa-Tafilalet, Region / Marokko
Cobaltlotharmeyerit
Views (File:
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Cobaltlotharmeyerit
Nadelige Hellbraune offene Vielkristallkugeln mit Quarz, BB = 1,5 mm, Fundort: Aghbar Mine, Bou Azzer, Anti-Atlas, Marokko.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A012281, Donator: Andre Heyninck
Location: Marokko/Drâa-Tafilalet, Region/Zagora, Provinz/Agdz, Cercle/Aghbar/Aghbar Mine (Arhbar Mine)
Mineral: Cobaltlotharmeyerite
Image: 1327859621
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Cobaltlotharmeyerit (SNr: A012281)

Nadelige Hellbraune offene Vielkristallkugeln mit Quarz, BB = 1,5 mm, Fundort: Aghbar Mine, Bou Azzer, Anti-Atlas, Marokko.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2012-01-29
Locality: Aghbar Mine (Arhbar Mine) / Aghbar / Agdz, Cercle / Zagora, Provinz / Drâa-Tafilalet, Region / Marokko
Cobaltlotharmeyerit
Views (File:
1623957420
): 131
Cobaltlotharmeyerit
Aghbar mine, Marokko; Bb 4 mm.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Marokko/Drâa-Tafilalet, Region/Zagora, Provinz/Agdz, Cercle/Aghbar/Aghbar Mine (Arhbar Mine)
Mineral: Cobaltlotharmeyerite
Image: 1623957420
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Cobaltlotharmeyerit

Aghbar mine, Marokko; Bb 4 mm.
Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2021-06-17
Locality: Aghbar Mine (Arhbar Mine) / Aghbar / Agdz, Cercle / Zagora, Provinz / Drâa-Tafilalet, Region / Marokko
Cobaltlotharmeyerit-XX
Views (File:
1108596018
): 1546
Cobaltlotharmeyerit-XX
braune Cobaltlotharmeyerit-XX Bildbreite: 0,8mm Fundort: Bou Azzer, Anti-Atlas, Marokko
Copyright: Dominik Schläfli; Contribution: Mineralienatlas
Location: Marokko/Drâa-Tafilalet, Region/Ouarzazate, Provinz/Amerzgane, Cercle/Ouisselsate, Caïdat/Bou Azzer Mine
Mineral: Cobaltlotharmeyerite
Image: 1108596018
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Cobaltlotharmeyerit-XX

braune Cobaltlotharmeyerit-XX Bildbreite: 0,8mm Fundort: Bou Azzer, Anti-Atlas, Marokko
Copyright: Dominik Schläfli
Contribution: Mineralienatlas 2005-02-16
Locality: Bou Azzer Mine / Ouisselsate, Caïdat / Amerzgane, Cercle / Ouarzazate, Provinz / Drâa-Tafilalet, Region / Marokko

You find additional specimen at the Geolitho Museum

Collectors Summary

Color hellbraun, rotbraun
Lustre Glasglanz
Hardness (Mohs) 4.5
Cleavages keine
Crystal System monoklin, C/2m

Chemism

Chemical formula

CaCo2(AsO4)2·2H2O

Chemical composition

Arsen, Calcium, Kobalt, Sauerstoff, Wasserstoff

Unit weight: 471.8140938 u; Number of atoms in the formula: 19

Info

Empirical formula:

CaCo2(AsO4)2·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.85

4

21.05

1.0079470

4.0317880
Oxygen

O

33.91

10

52.63

15.9994300

159.9943000
Calcium

Ca

8.49

1

5.26

40.0784000

40.0784000
Cobalt

Co

24.98

2

10.53

58.9332009

117.8664018
Arsenic

As

31.76

2

10.53

74.9216020

149.8432040

Analysis wt%

Ø As2O5 : 49.36, Fe2O3 : 11.53, CoO : 15.70, NiO : 5.76, CaO : 12.18, H2O : 6.39 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 99)

Strunz 9th edition incl. updates

8.CG.15

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
G: Mit großen und mittelgroßen Kationen, RO4:H2O = 1:1
15:Tsumcorit-Gruppe

Lapis Classification

VII/C.31-010

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
C: Wasserhaltige Phosphate, ohne fremde Anionen
31: Mittelgroße und große Kationen: Fe-Mn-Zn-Mg und Ca-(NH4) 1+; Tsumcorit/Gartrellit-Gruppe

Classification by Hölzel

8.DK.240

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
K: very large=2 - very small-medium=2,3
2: with Ca, monoclinic, Lotharmeyerite-Group

Dana 8th edition

37.01.06.03

37: Phosphate Minerals
01: Anhydrous Acid Phosphates, etc with miscellaneous formulae
06: Lotharmeyerite Series

IMA status

anerkannt 1997

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tsumcorite group

Optical Properties

Color

hellbraun, rotbraun

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz

max. Birefringence

0.07
Birefringence chart\! Cobaltlotharmeyerite title=Birefringence chart Cobaltlotharmeyerite

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

1.78

RI value β

1.79

RI value γ / ε

1.85

Ri mean

1.807

2V angle

Biaxial (+) 48°

Orientation

Y = b; X ^ c = 10

Dispersion

mäßig, r>v

Absorption

Y > X > Z

Anisotropism

blass gelb bis braun

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C/2m

Cell parameters a (Å)

9.024

Cell parameters b (Å)

6.230

Cell parameters c (Å)

7.421

Cell parameters a/b or c/a

1.448

Cell parameters c/b

1.191

Cell parameters α

90°

Cell parameters β

115.15

Cell parameters γ

90°

Z

2

Volume (ų)

377.653

X-Ray Powder Diffraction

4.955(70),
3.398(50),
3.188(80),
3.115(50),
2.972(80),
2.828(90),
2.709(40),
2.545(100)
XRD chart Cobaltlotharmeyerite

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)

4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.13 (berechnet)

4.149 ( ρ calc. Mineralienatlas )

Cleavages

keine

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg

Type material

Mineralogische Sammlung der TU Bergakademie Freiberg

Collection number of type material

79273 / c 7,5; 79274 / c 7,5

Paragenesis of type material

Barium-Pharmakosiderit, Alumopharmakosiderit, Arseniosiderit, Olivenit, Zeunerit, Mawbyit, Cobalttsumcorit, Rooseveltit, Waylandit, Skorodit

Preface

Author (Name, Year)

Krause & Effenberger & Bernhardt & Martin, 1999

References

Neues Jahrbuch für Mineralogie, Monatshefte (1999), 505.

American Mineralogist 85 (2000), 873 .

Sarp, H. and Favreau, G. (2000), Seconde occurrence du nouveau minéral cobaltlotharmeyerite Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2. Arch. Sci. Genève 53(1), 49-54. (in französisch).

H. Effenberger, W. Krause, H.-J. Bernhardt and M. Martin4 - On the symmetry of tsumcorite group minerals based on the new species rappoldite and zincgartrellite - Mineralogical Magazine 68 (2014) 757-767

IMA group assignments

Other languages

German

Cobaltlotharmeyerit

Spanish

Cobaltlotharmeyerita

French

Cobaltlotharmeyerite

English

Cobaltlotharmeyerite

Russian

Кобальтлотармейерит

Simplified Chinese

羟砷钙钴矿

Alternative Name

Spanish

Cobaltolotharmeyerita

German

Kobaltlotharmeyerit

CNMNC (IMA)-Number

IMA 1997-027

CNMNC symbol

Symbol

Clmy

Locations with GPS information

IDs

GUSID (Global unique identifier short form) CfmXP_6cH02tWpENJhyTkw
GUID (Global unique identifier) 3F97F909-9CFE-4D1F-AD5A-910D261C9393
Database ID 781