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Grossmanite

Pictures (1 Images total)

Grossmanit
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Grossmanit
Anschliff mit hellgrauem Grossmanit, Allende Meteorit, Pueblito de Allende, Chihuahua, Mexiko; BB ~ 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Mexiko/Chihuahua/Allende, Municipio/Pueblito de Allende/Allende Meteorit
Mineral: Grossmanite
Image: 1588610480
License: Usage for Mineralienatlas project only
Grossmanit

Anschliff mit hellgrauem Grossmanit, Allende Meteorit, Pueblito de Allende, Chihuahua, Mexiko; BB 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-04
Locality: Allende Meteorit / Pueblito de Allende / Allende, Municipio / Chihuahua / Mexiko

Collectors Summary

Crystal System monoklin, C2/c

Chemism

Chemical formula

CaTi3+AlSiO6

Additional chem. information

Clinopyroxene (Diopsid Gruppe)

Chemical composition

Aluminium, Calcium, Silicium, Titan, Sauerstoff

Unit weight: 239.0091482 u; Number of atoms in the formula: 10

Info

Empirical formula:

CaTiAlSiO6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

40.16

6

60.00

15.9994300

95.9965800
Aluminium

Al

11.29

1

10.00

26.9815382

26.9815382
Silicon

Si

11.75

1

10.00

28.0855300

28.0855300
Calcium

Ca

16.77

1

10.00

40.0784000

40.0784000
Titanium

Ti

20.03

1

10.00

47.8671000

47.8671000

Strunz 9th edition incl. updates

9.DA.15

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
A: Ketten- und Bandsilikate mit 2 periodischen Ketten SiO6; Pyroxen-Familie
15:Ca Klinopyroxene; Diopsid-Gruppe

Lapis Classification

VIII/F.01-112

VIII: SILIKATE
F: Ketten- und Bandsilikate
1: Zweierketten [Si2O6] 4-; Pyroxen-Gruppe; Klinopyroxene

Classification by Hölzel

9.DB.260

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
B: Diopside-Group

IMA status

anerkannt, Neue Mineralien - IMA WEB Seite, Mai 2008

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Pyroxene group  ⇒ Clinopyroxene group

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group

C2/c

Cell parameters a (Å)

9.80

Cell parameters b (Å)

8.85

Cell parameters c (Å)

5.36

Cell parameters a/b or c/a

1.107

Cell parameters c/b

0.606

Cell parameters α

90°

Cell parameters β

105.62

Cell parameters γ

90°

Z

4

Volume (ų)

447.704

X-Ray Powder Diffraction

2.996(100), 2.964(31), 2.909(25), 2.581(42), 2.5605(28), 2.535(47), 2.130(19), 1.431(19)
XRD chart Grossmanite

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

Physical Properties

Density (g/cm³)

3.42 (berechnet)

3.546 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Mexiko/Chihuahua/Allende, Municipio/Pueblito de Allende/Allende Meteorit

Preface

Author (Name, Year)

Chi Ma, 2009

References

Neue Mineralien - IMA WEB Seite, Mai 2008

IMA group assignments

Other languages

German

Grossmanit

Spanish

Grossmanita

English

Grossmanite

Russian

Гроссманит

Simplified Chinese

钛辉石

CNMNC (IMA)-Number

IMA 2008-042a

CNMNC symbol

Symbol

Gsm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) zE4XPMPbeUuhQiMF-fPNZA
GUID (Global unique identifier) 3C174ECC-DBC3-4B79-A142-2305F9F3CD64
Database ID 5190