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Cobalttsumcorite

Pictures (14 Images total)

Cobalttsumcorit
Views (File:
1608755829
): 657
Cobalttsumcorit
Bildbreite: 1,4 mm.
Copyright: Matthias Reinhardt; Contribution: Matthias Reinhardt
Collection: Uhlmann Krumhermersdorf
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobalttsumcorite
Image: 1608755829
Rating: 9.5 (votes: 2)
License: Usage for Mineralienatlas project only
Cobalttsumcorit

Bildbreite: 1,4 mm.
Collection: Uhlmann Krumhermersdorf
Copyright: Matthias Reinhardt
Contribution: Matthias Reinhardt 2020-12-23
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland
Cobalttsumcorit xx
Views (File:
1533904597
): 952
Cobalttsumcorit xx
Roter Berg,Schneeberg/Erzgebirge,Sachsen;Fund 1999; Bildbreite 3,8 mm
Copyright: geni; Contribution: Haubi
Collection: Haubi
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobalttsumcorite
Image: 1533904597
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Cobalttsumcorit xx

Roter Berg,Schneeberg/Erzgebirge,Sachsen;Fund 1999; Bildbreite 3,8 mm
Collection: Haubi
Copyright: geni
Contribution: Haubi 2018-08-10
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland
Cobalttsumcorit
Views (File:
1344461359
): 2684
Cobalttsumcorit
Fundort:Roter Berg,Schneeberg,Sachsen,Deutschland BB ca 5mm x 8mm
Copyright: Lutz Schlegel; Contribution: Stänlsucher
Collection: Lutz Schlegel
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobalttsumcorite
Image: 1344461359
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Cobalttsumcorit

Fundort:Roter Berg,Schneeberg,Sachsen,Deutschland BB ca 5mm x 8mm
Collection: Lutz Schlegel
Copyright: Lutz Schlegel
Contribution: Stänlsucher 2012-08-08
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland
Cobalttsumcorit xx
Views (File:
1153330648
): 1581
Cobalttsumcorit xx
Bildbreite: 2mm; Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Stephan Wolfsried; Contribution: Philip Blümner
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobalttsumcorite
Image: 1153330648
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Cobalttsumcorit xx

Bildbreite: 2mm; Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Stephan Wolfsried
Contribution: Philip Blümner 2006-07-19
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland
Cobalttsumcorit
Views (File:
1275823749
): 1470
Cobalttsumcorit
Bildbreite: 2 mm, Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Jason B. Smith; Contribution: thdun5
Location: Deutschland/Sachsen/Erzgebirgskreis/Schneeberg, Lagerstätte/Roter Berg
Mineral: Cobalttsumcorite
Image: 1275823749
License: Usage for Mineralienatlas project only
Cobalttsumcorit

Bildbreite: 2 mm, Fundort: Roter Berg, Schneeberg, Erzgebirge, Sachsen, Deutschland
Copyright: Jason B. Smith
Contribution: thdun5 2010-06-06
Locality: Roter Berg / Schneeberg, Lagerstätte / Erzgebirgskreis / Sachsen / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color braun, rotbraun
Streak color hellbraun
Lustre Diamantglanz
Hardness (Mohs) 4.5
Cleavages gut {001}
Fracture muschelig
Crystal System monoklin, C2/m

Chemism

Chemical formula

Pb(Co,Fe3+,Ni)2[AsO4]2·2(H2O,OH)

Chemical composition

Arsen, Blei, Eisen, Kobalt, Nickel, Sauerstoff, Wasserstoff

Unit weight: 636.54096358 u; Number of atoms in the formula: 18.5

Info

Empirical formula:

Pb(Co0.6Fe0.3Ni0.1)2[AsO4]2·2((H2O)0.75(OH)0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.55

3.5

18.92

1.0079470

3.5278145
Oxygen

O

25.13

10

54.05

15.9994300

159.9943000
Iron

Fe

5.26

0.6

3.24

55.8452000

33.5071200
Cobalt

Co

11.11

1.2

6.49

58.9332009

70.7198411
Nickel

Ni

1.84

0.2

1.08

58.6934200

11.7386840
Arsenic

As

23.54

2

10.81

74.9216020

149.8432040
Lead

Pb

32.55

1

5.41

207.2100000

207.2100000

Analysis wt%

As2O5 : 36.49, Fe2O3 : 8.47, NiO : 5.20, CoO : 9.10, ZnO : 0.52, PbO : 34.23, H2O : 4.16 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 2001)

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.31-036

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.150

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
K: very large=2 - very small-medium=2,3
1: (M(2+)(2-x) Me(3+)x -> (H2O)(2-x)(OH)x) with Pb, monoclinic, Tsumcorite-Group

Dana 8th edition

40.02.09.08

40: Hydrated Phosphates, etc
02: Hydrated Phosphates, etc where A++ (B++)2 (XO4) · x(H2O)
09: Helmutwinklerite Subgroup

IMA status

anerkannt 1999

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Tsumcorite group

Optical Properties

Color

braun, rotbraun

Streak color

hellbraun

Diaphaneity (Transparency)

transparent

Lustre

Diamantglanz

max. Birefringence

0.060
Birefringence chart\! Cobalttsumcorite title=Birefringence chart Cobalttsumcorite

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

1.92

RI value β

1.94

RI value γ / ε

1.98

Ri mean

1.947

2V angle

Biaxial (+) 70°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.097

Cell parameters b (Å)

6.313

Cell parameters c (Å)

7.555

Cell parameters a/b or c/a

1.441

Cell parameters c/b

1.197

Cell parameters α

90°

Cell parameters β

115.8

Cell parameters γ

90°

Z

2

Volume (ų)

390.629

X-Ray Powder Diffraction

4.656(90),
4.462(100),
3.243(100),
3.010(60),
2.868(50),
2.733(50),
2.560(30),
2.538(40)
XRD chart Cobalttsumcorite

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)

500 (25g)

Density (g/cm³)

5.31 (berechnet)

5.411 ( ρ calc. Mineralienatlas )

Cleavages

gut {001}

Fracture

muschelig

Tenacity

spröde

Radioactivity

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

80100 / d 1,1

Paragenesis of type material

Quarz, Mawbyit, Cobaltlotharmeyerit, Galenit, Arseniosiderit, Plumbogummit

Preface

Author (Name, Year)

Krause & Bernhardt & Effenberger & Martin, 2002

References

Neues Jahrbuch für Mineralogie, Monatshefte (2001), 558.

American Mineralogist 87 (2002), 996.

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

Spanish

Cobaltotsumcorita

German

Cobalttsumcorit

French

Cobalttsumcorite

English

Cobalttsumcorite

Russian

Кобальтцумкорит

Simplified Chinese

羟砷铅钴石

Traditional Chinese

羥砷鉛鈷石

Alternative Name

Spanish

Cobalttsumcorita

German

Kobalttsumcorit

CNMNC (IMA)-Number

IMA 1999-029

CNMNC symbol

Symbol

Ctsm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Hyq3N1GZEEm_08_OcVXDXw
GUID (Global unique identifier) 37B72A1F-9951-4910-BFD3-CFCE7155C35F
Database ID 784