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Grossmanite (Grossmanita)

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, Othopyroxene
15: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

Optical Properties

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

Volumne (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

Reference List

Neue Mineralien - IMA WEB Seite, Mai 2008

Corresponding author (Name, Year)

Chi Ma, 2009

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system | Space group | Space Group | Indenture number]

Augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6

monoklin

C2/c

2/m

9.DA.15

Burnettite

CaVAlSiO6

monoklin

C2/c

2/m

9.DA.15

Davisite

CaScAlSiO6

monoklin

C2/c

2/m

9.DA.15

Diopside

CaMgSi2O6

monoklin

C2/c

2/m

9.DA.15

Esseneite

CaFe3+AlSiO6

monoklin

C2/c

2/m

9.DA.15

'Fassaite' (Var.v. Diopside, Augite)

CaMgSi2O6

monoklin

9.DA.15

Grossmanite

CaTi3+AlSiO6

monoklin

C2/c

2/m

9.DA.15

Hedenbergite

CaFe2+Si2O6

monoklin

C2/c

2/m

9.DA.15

Johannsenite

CaMnSi2O6

monoklin

C2/c

2/m

9.DA.15

Kushiroite

CaAl2SiO6

monoklin

C2/c

2/m

9.DA.15

Petedunnite

Ca(Zn,Mn2+,Fe2+,Mg)Si2O6

monoklin

C2/c

2/m

9.DA.15

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system | Space group | Space Group | Indenture number]

Clinoenstatite

Mg2Si2O6

monoklin

P21/c

2/m

VIII/F.01-010

Clinoferrosilite

Fe2+2Si2O6

monoklin

P21/c

2/m

VIII/F.01-020

Kanoite

MnMgSi2O6

monoklin

P21/c

2/m

VIII/F.01-030

Pigeonite

(Mg,Fe,Ca)2Si2O6

monoklin

P21/c

2/m

VIII/F.01-040

Diopside

CaMgSi2O6

monoklin

C2/c

2/m

VIII/F.01-050

Hedenbergite

CaFe2+Si2O6

monoklin

C2/c

2/m

VIII/F.01-060

Johannsenite

CaMnSi2O6

monoklin

C2/c

2/m

VIII/F.01-070

Petedunnite

Ca(Zn,Mn2+,Fe2+,Mg)Si2O6

monoklin

C2/c

2/m

VIII/F.01-080

Augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6

monoklin

C2/c

2/m

VIII/F.01-090

Omphacite

(Ca,Na)(Mg,Fe2+,Fe3+,Al)Si2O6

monoklin

C2/c, P2/n

2/m, 2/m

VIII/F.01-100

Kushiroite

CaAl2SiO6

monoklin

C2/c

2/m

VIII/F.01-105

Esseneite

CaFe3+AlSiO6

monoklin

C2/c

2/m

VIII/F.01-110

Grossmanite

CaTi3+AlSiO6

monoklin

C2/c

2/m

VIII/F.01-112

Davisite

CaScAlSiO6

monoklin

C2/c

2/m

VIII/F.01-115

Spodumene

LiAlSi2O6

monoklin

C2/c

2/m

VIII/F.01-120

Jadeite

Na(Al,Fe3+)Si2O6

monoklin

C2/c

2/m

VIII/F.01-130

Aegirine

NaFe3+Si2O6

monoklin

C2/c

2/m

VIII/F.01-140

Namansilite

NaMn3+[Si2O6]

monoklin

C2/c

2/m

VIII/F.01-145

Jervisite

(Na,Ca,Fe2+)(Sc,Mg,Fe2+)Si2O6

monoklin

C2/c

2/m

VIII/F.01-150

Natalyite

Na(V3+,Cr3+)Si2O6

monoklin

C2/c

2/m

VIII/F.01-160

Kosmochlor

NaCr3+Si2O6

monoklin

C2/c

2/m

VIII/F.01-170

Related minerals "Hoelzel Classification" [Mineral | Chemical formula | Crystal system | Space group | Space Group | Indenture number]

Esseneite

CaFe3+AlSiO6

monoklin

C2/c

2/m

9.DB.240

'Fassaite' (Var.v. Diopside, Augite)

CaMgSi2O6

monoklin

9.DB.220

Grossmanite

CaTi3+AlSiO6

monoklin

C2/c

2/m

9.DB.260

Kushiroite

CaAl2SiO6

monoklin

C2/c

2/m

9.DB.250

Petedunnite

Ca(Zn,Mn2+,Fe2+,Mg)Si2O6

monoklin

C2/c

2/m

9.DB.200

Other languages

Simplified Chinese

钛辉石

German

Grossmanit

Spanish

Grossmanita

English

Grossmanite

IMA Number

IMA 2008-042a

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

German pages

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International pages

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