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Monticellite (Monticellit)

Pictures (8 Images total)

Monticellit
Views (Image: 1254465361): 3519
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 / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Monticellit
Views (Image: 1254465317): 3101, Rating: 7.25
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 / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Monticellit
Views (Image: 1272357053): 2571
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 (Image: 1274034919): 2507
Monticellit mit blauem Calcit

Größe: 48x30 mm; Fundort: Commercial Quarry, Sky Blue Hill, Crestmore Quarries, Crestmore, Riverside Co., California, USA

Copyright: John Sobolewski
Contribution: slugslayer 2010-05-16
Locality: Commercial Quarry / Sky Blue Hill / Crestmore Quarries / Crestmore / Riverside Co. / Kalifornien (California) / USA
Monticellit
Views (Image: 1298241293): 1818
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 / Kanada
Monticellit
Views (Image: 1318404711): 591
Monticellit (SNr: A000912)

Bellerberg, 2,9 mm; isometrische, graue Kristalle, z.T. eingewachsen in calciumreichen Xenolith, teilweise Inklusionen

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2011-10-12
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

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

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

Volumne (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

Preface

Author (Name, Year)

Brooke, 1831

References

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

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Monticellite

CaMgSiO4

orthorhombisch : mmm : Pbnm

9.AC.10

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Monticellite

CaMgSiO4

orthorhombisch : mmm : Pbnm

VIII/A.05-010

Kirschsteinite

CaFe2+SiO4

orthorhombisch : mmm : Pmnb

VIII/A.05-020

Glaucochroite

CaMnSiO4

orthorhombisch : mmm : Pbnm

VIII/A.05-030

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Forsterite

Mg2SiO4

orthorhombisch : mmm : Pbnm

9.AB.100

Fayalite

Fe22+SiO4

orthorhombisch : mmm : Pbnm

9.AB.120

Liebenbergite

(Ni,Mg)2SiO4

orthorhombisch : mmm : Pbnm

9.AB.140

Monticellite

CaMgSiO4

orthorhombisch : mmm : Pbnm

9.AB.160

Kirschsteinite

CaFe2+SiO4

orthorhombisch : mmm : Pmnb

9.AB.170

Glaucochroite

CaMnSiO4

orthorhombisch : mmm : Pbnm

9.AB.180

Calcio-olivine

Ca2SiO4

orthorhombisch : mmm : Pnma

9.AB.190

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Fayalite

Fe22+SiO4

orthorhombisch : mmm : Pbnm

51.03.01.01

Forsterite

Mg2SiO4

orthorhombisch : mmm : Pbnm

51.03.01.02

Liebenbergite

(Ni,Mg)2SiO4

orthorhombisch : mmm : Pbnm

51.03.01.03

Tephroite

Mn2SiO4

orthorhombisch : mmm : Pbnm

51.03.01.04

Monticellite

CaMgSiO4

orthorhombisch : mmm : Pbnm

51.03.02.01

Kirschsteinite

CaFe2+SiO4

orthorhombisch : mmm : Pmnb

51.03.02.02

Glaucochroite

CaMnSiO4

orthorhombisch : mmm : Pbnm

51.03.02.03

Ringwoodite

(Mg,Fe2+)2SiO4

kubisch : m3m : Fd3m

51.03.03.01

Wadsleyite

(Mg,Fe2+)2SiO4

orthorhombisch : mmm : Imma

51.03.04.01

CNMNC symbol

Symbol

Mtc

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

German pages

DeWikiPedia - search for: Monticellit
Google-Bilder-Suche - search for: Monticellit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Monticellit

English pages

Mindat - search for: Monticellite
Webmineral - search for:Monticellite
Handbook-of-Mineralogy - search for: Monticellite
RRUFF - Raman, XRD and other mineral data - search for: Monticellite
RRUFF - References and PDF downloads - search for: Monticellite
American-Mineralogist-Crystal-Structure-Database - search for: Monticellite
Athena - search for: Monticellite

Russian pages

Webmineral.ru - search for: Монтичеллит

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Monticellit
Bosse - search for: Monticellit

Locations with GPS information