https://www.mineraliengrosshandel.com
https://www.mineral-bosse.de
https://www.mineralbox.biz
https://www.edelsteine-neuburg.de
'._('einklappen').'
 

Zincochromite

Pictures (1 Images total)

Zinkochromit
Views (File:
1626885123
): 261
Zinkochromit
Aggregat von Zinkochromit eingegossen in Epoxidharz und poliert, Srednyaya Padma U-V-Lagerstätte, Zaonezhie-Halbinsel, Karelien, Russland; BB ~ 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Nordwestrussland, Föderationskreis/Karelien, Republik/Onegasee/Zaonezhie-Halbinsel/Velikaya Guba U-Lagerstätte/Srednyaya Padma U-V-Lagerstätte
Mineral: Zincochromite
Image: 1626885123
License: Usage for Mineralienatlas project only
Zinkochromit

Aggregat von Zinkochromit eingegossen in Epoxidharz und poliert, Srednyaya Padma U-V-Lagerstätte, Zaonezhie-Halbinsel, Karelien, Russland; BB 2 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-07-21
Locality: Srednyaya Padma U-V-Lagerstätte / Velikaya Guba U-Lagerstätte / Zaonezhie-Halbinsel / Onegasee / Karelien, Republik / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color bräunlichschwarz-met.
Hardness (Mohs) 6
Crystal System kubisch, Fd3m

Chemism

Chemical formula

ZnCr2O4

Chemical composition

Chrom, Zink, Sauerstoff

Unit weight: 233.39944 u; Number of atoms in the formula: 7

Info

Empirical formula:

ZnCr2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

27.42

4

57.14

15.9994300

63.9977200

Chromium

Cr

44.56

2

28.57

51.9961600

103.9923200

Zinc

Zn

28.02

1

14.29

65.4094000

65.4094000

Analysis wt%

Ø ZnO : 35.91, Cr2O3 : 53.67, Al2O3 : 0.97, SiO2 : 2.90, TiO2 : 0.41, V2O3 : 4.55, Fe2O3 : 2.78 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 87)

Strunz 9th edition incl. updates

4.BB.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
B: Metall: Sauerstoff = 3:4 und vergleichbare
B: Mit ausschließlich mittelgroßen [Kationen]
05:Spinel-Gruppe

Lapis Classification

IV/B.03-060

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)
3: Spinell-Gruppe; Chromit-Spinelle

Classification by Hölzel

4.BC.120

4: OXIDES
B: Spinels R3O4
C: Cr-Spinels

Dana 8th edition

07.02.03.06

07: Multiple Oxides
02: Multiple Oxides (A+ B++)2 X4 Spinel group
03: (Chromium subgroup)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Optical Properties

Color

bräunlichschwarz-met.

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

8.352

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

582.601

X-Ray Powder Diffraction

4.822(10),
2.954(50),
2.519(100),
2.410(10),
2.088(20),
1.705(10),
1.607(30),
1.476(30)

XRD chart Zincochromite

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)

6

VHN (Hardness Vickers)

620 (10g)

Density (g/cm³)

5.434 (berechnet)

5.322 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Nesterov & Rumyantseva, 1987

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 116 (1987), 367

IMA group assignments

Other languages

German

Zincochromit

Spanish

Zincochromita

English

Zincochromite

French

Zincochromite

Italian

Zincochromite

Russian

Цинкохромит

Japanese

亜鉛クロム鉄鉱

Alternative Name

German

Zinkochromit

CNMNC (IMA)-Number

IMA 1986-015

CNMNC symbol

Symbol

Zchr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) SCZZJzmFOk6fWtQ90xJ4JQ
GUID (Global unique identifier) 27592648-8539-4E3A-9F5A-D43DD3127825
Database ID 4281