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Monticellite

Pictures (12 Images total)

Monticellit
Views (File:
1254465361
): 3886
Monticellit
Bildbreite: 3 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Vordereifel, Verbandsgemeinde/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)
Mineral: Monticellite
Image: 1254465361
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Monticellit

Bildbreite: 3 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2009-10-02
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Vordereifel, Verbandsgemeinde / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Monticellit
Views (File:
1254465317
): 3342, Rating: 7.25
Monticellit
Bildbreite: 3 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Vordereifel, Verbandsgemeinde/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)
Mineral: Monticellite
Image: 1254465317
Rating: 7.25 (votes: 4)
License: Usage for Mineralienatlas project only
Monticellit

Bildbreite: 3 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Stephan Wolfsried
Contribution: Hg 2009-10-02
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Vordereifel, Verbandsgemeinde / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Monticellit
Views (File:
1272357053
): 2821
Monticellit
Größe: 1,42 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Monticellite
Image: 1272357053
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Monticellit

Größe: 1,42 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Matteo Chinellato
Contribution: Hg 2010-04-27
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Monticellit mit blauem Calcit
Views (File:
1274034919
): 2782
Monticellit mit blauem Calcit
Größe: 48x30 mm; Fundort: Commercial Quarry, Sky Blue Hill, Crestmore Quarries, Crestmore, Riverside Co., California, USA
Copyright: John Sobolewski; Contribution: Philip Blümner
Location: USA/Kalifornien (California)/Riverside Co./Crestmore/Crestmore Quarries/Sky Blue Hill/Commercial Quarry
Mineral: Monticellite
Image: 1274034919
License: Usage for Mineralienatlas project only
Monticellit mit blauem Calcit

Größe: 48x30 mm; Fundort: Commercial Quarry, Sky Blue Hill, Crestmore Quarries, Crestmore, Riverside Co., California, USA
Copyright: John Sobolewski
Contribution: Philip Blümner 2010-05-16
Locality: Commercial Quarry / Sky Blue Hill / Crestmore Quarries / Crestmore / Riverside Co. / Kalifornien (California) / USA
Monticellit
Views (File:
1298241293
): 2093
Monticellit
Größe: 1,5 x 1,5 x 0,7 cm, Fundort: Bond Zone, Oka, Oka Complex, Deux-Montagnes, Laurentides, Québec, Kanada
Copyright: Maggie Wilson; Contribution: thdun5
Location: Kanada/Québec, Provinz/Laurentides, Region/Deux-Montagnes, MRC/Oka Complex/Oka/Bond Zone
Mineral: Monticellite
Image: 1298241293
License: Usage for Mineralienatlas project only
Monticellit

Größe: 1,5 x 1,5 x 0,7 cm, Fundort: Bond Zone, Oka, Oka Complex, Deux-Montagnes, Laurentides, Québec, Kanada
Copyright: Maggie Wilson
Contribution: thdun5 2011-02-20
Locality: Bond Zone / Oka / Oka Complex / Deux-Montagnes, MRC / Laurentides, Region / Québec, Provinz / Kanada

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, grünlich grau, grau
Streak color weiß
Hardness (Mohs) 5.5
Solubility +++ HCl
Crystal System orthorhombisch, Pbnm

Chemism

Chemical formula

CaMgSiO4

Chemical composition

Calcium, Magnesium, Silicium, Sauerstoff

Unit weight: 156.46671 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaMgSiO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

40.90

4

57.14

15.9994300

63.9977200
Magnesium

Mg

15.53

1

14.29

24.3050600

24.3050600
Silicon

Si

17.95

1

14.29

28.0855300

28.0855300
Calcium

Ca

25.61

1

14.29

40.0784000

40.0784000

Analysis wt%

SiO2 : 36.83, FeO : 4.47, MnO : 0.50, MgO : 22.76, CaO : 34.99 (Ref: American Mineralogist 78)

Strunz 9th edition incl. updates

9.AC.10

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
C: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] Koordination
10:Monticellit-Gruppe

Lapis Classification

VIII/A.05-010

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
5: Kationen in oktaedrischer Koordination [6]

Classification by Hölzel

9.AB.160

9: SILICATES
A: Nesosilicates
B: Olivine-Group

Dana 8th edition

51.03.02.01

51: Nesosilicate Minerals
03: Nesosilicates Nesosilicate Insular SiO4 Groups Only with all cations in octahedral [6] coordination
02: Monticellite - Kirschsteinite series

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Olivine group

Optical Properties

Color

farblos, grünlich grau, grau

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.016
Birefringence chart\! Monticellite title=Birefringence chart Monticellite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.646

RI value β

1.655

RI value γ / ε

1.662

Ri mean

1.654

2V angle

Biaxial (-) 77°~

Optical Data Luminescence

Color LW-UV (365nm)

  

rosa

Color SW-UV (254nm)

  

orange

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pbnm

Cell parameters a (Å)

4.815

Cell parameters b (Å)

11.08

Cell parameters c (Å)

6.37

Cell parameters a/b or c/a

0.435

Cell parameters c/b

0.575

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

339.841

X-Ray Powder Diffraction

4.19(30),
3.640(80),
3.192(40),
2.939(40),
2.676(100),
2.598(60),
2.404(30),
1.819(30)
XRD chart Monticellite

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)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.2

3.058 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

(Co-)Type locality

(Co-)Type locality

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma

Preface

Author (Name, Year)

Brooke, 1831

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 550

IMA group assignments

 
Olivine group
Mg1.6Fe2+0.4(SiO4)
orthorhombisch
 

 
 
Calcio-olivine
Ca2SiO4
orthorhombisch
Pnma

 
 
Fayalite
Fe22+SiO4
orthorhombisch
Pbnm

 
 
Forsterite
Mg2SiO4
orthorhombisch
Pbnm

 
 
Monticellite
CaMgSiO4
orthorhombisch
Pbnm

 
 
Tephroite
Mn2SiO4
orthorhombisch
Pbnm

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Actuality: 04. Sep 2024 - 13:40:55

Other languages

German

Monticellit

Spanish

Monticellita

English

Monticellite

French

Monticellite

Russian

Монтичеллит

Traditional Chinese

鈣鎂橄欖石

Simplified Chinese

钙镁橄榄石

CNMNC symbol

Symbol

Mtc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) sAg86ltPK0ehMJo8FaceEg
GUID (Global unique identifier) EA3C08B0-4F5B-472B-A130-9A3C15A71E12
Database ID 2592