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Matraite (Matrait)

Collectors Summary

Color bräunlichgelb
Streak color gelb weiß
Hardness (Mohs) 3.75
Cleavages {1010} deutlich
Solubility +++ Säuren
Crystal System hexagonal,

Additional information / Summary

Matrait = dicht verzwillingter säulenförmiger Sphalerit (Acta Mineral.-Petrogr. (Szeged) 41 (Suppl.) (2000), 124)

Chemism

Chemical formula

ZnS

Additional chem. information

Matrait = dicht verzwillingter säulenförmiger Sphalerit (Acta Mineral.-Petrogr. (Szeged) 41 (Suppl.) (2000), 124)

Chemical composition

Zink, Schwefel

Unit weight: 97.4749 u; Number of atoms in the formula: 2

Info

Empirical formula:

ZnS

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

32.90

1

50.00

32.0655000

32.0655000
Zinc

Zn

67.10

1

50.00

65.4094000

65.4094000

Analysis wt%

Zn : 61.70, Fe : 5.10, S : 33.22 (Ref: ActaMin.Petr.Univ.Szegediensis,58)

Strunz 9th edition incl. updates

2.CB.45

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
45:Wurtzit-Gruppe

Classification by Hölzel

2.CB.610

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
6: Wurtzite-Cubanite Family Wurtzite-Group

IMA status

diskreditiert, IMA Massendiskreditierung 11/2006 (Antrag 06-C)

Mineral status

Varietät

Variety / polytype of

Sphalerite

Optical Properties

Color

bräunlichgelb

Streak color

gelb weiß

Diaphaneity (Transparency)

transparent

Crystallography

Crystal System

hexagonal

Cell parameters a (Å)

3.8

Cell parameters b (Å)

-

Cell parameters c (Å)

9.4

Cell parameters a/b or c/a

2.474

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

3

Volumne (ų)

117.551

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.75

Density (g/cm³)

4.1 (berechnet)

4.131 ( ρ calc. Mineralienatlas )

Cleavages

{1010} deutlich

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Ungarn/Heves, Komitat/Gyöngyös, Kreis/Gyöngyösoroszi

Preface

Author (Name, Year)

Koch, 1958

References

American Mineralogist (1960): 45: 1131.

Acta Mineral.-Petrogr. (Szeged)(2000): 41 (Suppl.): 124.

Canadian Mineralogist Vol. 44, pp. 1557-1560 (2006)

Other languages

German

Matrait

English

Matraite

French

Matraite

Spanish

Matraíta

Locations with GPS information