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Mattagamite (Mattagamit)

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Mattagamit (rosa), Altait (weiß)
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Mattagamit (rosa), Altait (weiß)
Dünnschliff; Bildbreite: 11 mm; Fundort: Mattagami Lake Mines, Galinee Township, Abitibi Co., Quebec, Kanada
Copyright: Pavel M. Kartashov; Contribution: slugslayer
Location: Kanada/Québec/Nord-du-Québec, Region/Matagami VMS Distrikt/Galinée Township/Mattagami/Mattagami Lake Mine
Mineral: Altaite, Mattagamite
Encyclopedia: Dünnschliffmikroskopie
Image: 1245598253
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Mattagamit (rosa), Altait (weiß)

Dünnschliff; Bildbreite: 11 mm; Fundort: Mattagami Lake Mines, Galinee Township, Abitibi Co., Quebec, Kanada

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2009-06-21
Locality: Mattagami Lake Mine / Mattagami / Galinée Township / Matagami VMS Distrikt / Nord-du-Québec, Region / Québec / Kanada

Collectors Summary

Color Violet
Hardness (Mohs) 5.5
Crystal System orthorhombisch, Pnn2

Chemism

Chemical formula

CoTe2

Chemical composition

Kobalt, Tellur

Unit weight: 314.1392009 u; Number of atoms in the formula: 3

Info

Empirical formula:

CoTe2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Cobalt

Co

18.76

1

33.33

58.9332009

58.9332009

Tellurium

Te

81.24

2

66.67

127.6030000

255.2060000

Analysis wt%

Ø Co : 10.30, Fe : 6.70, Te : 82.40 (Ref: Canadian Mineralogist 73)

Strunz 9th edition incl. updates

2.EB.10

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
B: M:S = 1:2, mit Fe, Co, Ni, PGE, usw.
10:Markasit-Gruppe

Lapis Classification

II/D.20-060

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
D: Sulfide mit Metall : S,Se,Te < 1:1
20: Markasit-Gruppe

Classification by Hölzel

2.EB.650

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
B: With Fe,Co,Ni,PGE Pyrite, Marcasite Family
6: Marcasite-Group

Dana 8th edition

02.12.02.05

02: Sulfide Minerals
12: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
02: Marcasite Group (Orthorhombic: Pnnm)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Marcasite group

Optical Properties

Color

Violet

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

34

Space Group

Pnn2

Cell parameters a (Å)

5.305

Cell parameters b (Å)

6.289

Cell parameters c (Å)

3.866

Cell parameters a/b or c/a

0.844

Cell parameters c/b

0.615

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

128.982

X-Ray Powder Diffraction

3.31(30),
2.805(100),
2.703(80),
2.066(60),
1.843(40),
1.583(30),
1.514(20),
1.354(20)

XRD chart Mattagamite

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)

394 (25g)

Density (g/cm³)

8.00 (berechnet)

8.088 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Thorpe & Harris, 1973

References

Canadian Mineralogist 12 (1973), 55

IMA group assignments

Other languages

German

Mattagamit

Spanish

Mattagamita

English

Mattagamite

French

Mattagamite

Russian

Маттагамит

CNMNC (IMA)-Number

IMA 1972-003

CNMNC symbol

Symbol

Mtg

Locations with GPS information

IDs

GUSID (Global unique identifier short form) arvu41EJ50KkIrmXkk_C_w
GUID (Global unique identifier) E3EEBB6A-0951-42E7-A422-B997924FC2FF
Database ID 2414