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Majorite

Pictures (1 Images total)

Majorit
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Majorit
Gelbbrauner Majorit (ohne Maßstab) aus dem Peace River Meteorit, Kanada. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital; Contribution: oliverOliver
Location: Kanada/Alberta/Peace River, Gemeinde/Peace River Meteorit
Mineral: Majorite
Image: 1702233974
License: Creative Commons - Attribution-ShareAlike 4.0 International  (CC BY-SA) V.4.0
Majorit

Gelbbrauner Majorit (ohne Maßstab) aus dem Peace River Meteorit, Kanada. Ex Van den Broucke Sammlung (sh.: https://www.mindat.org/mesg-560223.html).
Copyright: Wikipedia-user: David Hospital
Contribution: oliverOliver 2023-12-10
Locality: Peace River Meteorit / Peace River, Gemeinde / Alberta / Kanada

Collectors Summary

Color gelbbraun, purpurrot
Streak color weiß
Hardness (Mohs) 7 - 7.5
Crystal System kubisch,

Chemism

Chemical formula

{Mg3}[MgSi](Si3)O12

Chemical composition

Magnesium, Silicium, Sauerstoff

Unit weight: 401.55552 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Mg3}[MgSi](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

47.81

12

60.00

15.9994300

191.9931600
Magnesium

Mg

24.21

4

20.00

24.3050600

97.2202400
Silicon

Si

27.98

4

20.00

28.0855300

112.3421200

Strunz 9th edition incl. updates

9.AD.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
D: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] und gewöhnlich größerer Koordination
25:Granat-Gruppe

Lapis Classification

VIII/A.08-060

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
8: Kationen in kubischer und oktaedrischer Koordination [8+6]; Granat-Gruppe

Classification by Hölzel

9.AC.140

9: SILICATES
A: Nesosilicates
C: Garnet-Group
1: Pyralspites - 8-coord. Mg, Fe(2+), Mn(2+); Pyrope - Spessartine-Group

Dana 8th edition

51.04.03a.05

51: Nesosilicate Minerals
04: Nesosilicates Nesosilicate Insular SiO4 Groups Only with cations in [6] and >[6] coordination
03a: Garnet group (Pyralspite series)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Garnet supergroup  ⇒ Silicate garnets; Garnet group (Z charge 12)

Optical Properties

Color

gelbbraun, purpurrot

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

RI value α / ω / n

1.79

Ri mean

1.79

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Cell parameters a (Å)

11.524

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)

1530.417

X-Ray Powder Diffraction

2.881(70),
2.575(100),
2.454(40),
2.352(30),
2.262(30),
2.038(20),
1.597(40),
1.540(60)
XRD chart Majorite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

7 - 7.5

VHN (Hardness Vickers)

1450 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.76 (berechnet)

3.485 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Eucla/Coorara-Meteorit

Preface

Author (Name, Year)

Smith & Mason, 1970

References

Science 168 (1970), 832.

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

Other languages

German

Majorit

Spanish

Majorita

English

Majorite

French

Majorite

Russian

Меджорит

Traditional Chinese

鎂鐵榴石

Simplified Chinese

镁铁榴石

CNMNC (IMA)-Number

IMA 1969-018

RRUFF ID

R210005

CNMNC symbol

Symbol

Maj

Locations with GPS information

IDs

GUSID (Global unique identifier short form) rXt3zAfBwU6H9Vik3HlHlQ
GUID (Global unique identifier) CC777BAD-C107-4EC1-87F5-58A4DC794795
Database ID 2334