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Magnesiochromite

Pictures (2 Images total)

Magnesiochromit
Views (File:
1590221421
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Magnesiochromit
Türkei/Zentralanatolien/Kayseri, Provinz. Bildbreite 1,3 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Türkei/Zentralanatolien/Kayseri, Provinz
Mineral: Magnesiochromite
Image: 1590221421
License: Usage for Mineralienatlas project only
Magnesiochromit

Türkei/Zentralanatolien/Kayseri, Provinz. Bildbreite 1,3 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-05-23
Locality: Kayseri, Provinz / Zentralanatolien / Türkei
Magnesiochromit
Views (File:
1590221624
): 381
Magnesiochromit
Türkei/Zentralanatolien/Kayseri, Provinz. Bildbreite 1,4 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Türkei/Zentralanatolien/Kayseri, Provinz
Mineral: Magnesiochromite
Image: 1590221624
License: Usage for Mineralienatlas project only
Magnesiochromit

Türkei/Zentralanatolien/Kayseri, Provinz. Bildbreite 1,4 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-05-23
Locality: Kayseri, Provinz / Zentralanatolien / Türkei

Collectors Summary

Color schwarz
Streak color dunkelgrau
Hardness (Mohs) 5.5
Crystal System kubisch, Fd3m

Chemism

Chem­ical formula

MgCr2O4

Chem­ical com­po­si­tion

Chrom, Magnesium, Sauerstoff

Unit weight: 192.2951 u; Number of atoms in the formula: 7

Info

Empirical formula:

MgCr2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

33.28

4

57.14

15.9994300

63.9977200

Magnesium

Mg

12.64

1

14.29

24.3050600

24.3050600

Chromium

Cr

54.08

2

28.57

51.9961600

103.9923200

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.03-010

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.100

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

Dana 8th edi­tion

07.02.03.01

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

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Classification

Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Optical Properties

Color

schwarz

Streak color

dunkelgrau

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters a (Å)

8.277

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

Volumne (ų)

567.047

X-Ray Pow­der Diffrac­tion

4.813(60),
2.945(10),
2.512(100),
2.406(10),
2.083(50),
1.603(40),
1.473(50),
1.409(10)

XRD chart Magnesiochromite

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)

1468 (100g)

Density (g/cm³)

4.2 (gemessen)

4.505 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Bock, 1868

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 330

IMA group assignments

Other languages

German

Magnesiochromit

French

Magnesiochromite

English

Magnesiochromite

Spanish

Magnesiocromita

Russian

Магнезиохромит

Simplified Chinese

镁铬铁矿

Japanese

クロム苦土鉱

Alternative Name

Chrome-Spinel (of Boldyrev)

Chrome-Spinel (of Boldyrev)

Ferrichromspinel

Spanish

Magnesiochromita

Magnesiochromite (of Bock)

Magnesiochromite (of Simpson)

Magnochromite (of Fisher)

German

Mitchellit

Spanish

Mitchellita

Mitchellite

Japanese

苦土クロム石

Simplified Chinese

镁铬尖晶石

CNMNC symbol

Symbol

Mchr

Rock part of

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Magnesiochromit
Google-Bilder-Suche - search for: Magnesiochromit
Mineralienatlas.de (Forum) - search for: Magnesiochromit

English pages

Mindat - search for: Magnesiochromite
Webmineral - search for:Magnesiochromite
Handbook-of-Mineralogy - search for: Magnesiochromite
RRUFF - Raman, XRD and other mineral data - search for: Magnesiochromite
RRUFF - References and PDF downloads - search for: Magnesiochromite
American-Mineralogist-Crystal-Structure-Database - search for: Magnesiochromite
Strahlen.org - search for: Magnesiochromite

Russian pages

Webmineral.ru - search for: Магнезиохромит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Magnesiochromit
Crystal-Treasure.com - search for: Magnesiochromit
Bosse - search for: Magnesiochromit
Edelsteine Neuburg - Gundolf Fischer - search for: Magnesiochromit
Geolitho marketplace, by and for collectors - search for: Magnesiochromit

Locations with GPS information