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Dmitryivanovite

Collectors Summary

Crystal System monoklin, P21/c

Chemism

Chemical formula

CaAl2O4

Chemical composition

Aluminium, Calcium, Sauerstoff

Unit weight: 158.0391964 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaAl2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

40.49

4

57.14

15.9994300

63.9977200
Aluminium

Al

34.15

2

28.57

26.9815382

53.9630764
Calcium

Ca

25.36

1

14.29

40.0784000

40.0784000

Analysis wt%

Al2O3 : 64.52, CaO : 35.48 (Ref: berechnet)

Strunz 9th edition incl. updates

4.BB.

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]

Lapis Classification

IV/B.09-005

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)

Classification by Hölzel

4.CE.750

4: OXIDES
C: R2O3 Sesquioxides
E: Other complex Oxides, mostly hextrig
7: Brownmillerite-Group

IMA status

anerkannt 2006

Mineral status

anerkanntes Mineral

Optical Properties

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

7.95

Cell parameters b (Å)

8.62

Cell parameters c (Å)

10.25

Cell parameters a/b or c/a

0.922

Cell parameters c/b

1.189

Cell parameters α

90°

Cell parameters β

93.10

Cell parameters γ

90°

Z

12

Volume (ų)

701.394

X-Ray Powder Diffraction

3.018(100), 2.920(83), 2.882(52), 2.559(42), 2.505(46), 2.371(31), 1.888(29), 1.467(29)
XRD chart Dmitryivanovite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.49 ber.

4.49 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Marokko/Drâa-Tafilalet, Region/Errachidia (Er-Rachidia), Provinz/Errachidia, Cercle/Meteorit NWA 470

Preface

Name from

dem Geologen Dmitriy A. Ivanov (1962-1986), der bei der Untersuchung magmatischer Gesteine zum Studium der Petrogenese von Magmen rezenter vulkanischer Zentren des Kaukasus tödlich verunglückte.

References

Mineralien Welt 02/10, Steffen Jahn, Neue Mineralien

Other languages

German

Dmitryivanovit

Spanish

Dmitryivanovita

English

Dmitryivanovite

Russian

Дмитрийивановит

CNMNC (IMA)-Number

IMA 2006-035

CNMNC symbol

Symbol

Div

Locations with GPS information

IDs

GUSID (Global unique identifier short form) RKUaIIC-fk-4tzc35pcV-Q
GUID (Global unique identifier) 201AA544-BE80-4F7E-B8B7-3737E69715F9
Database ID 4385