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Calcio-olivine

Pictures (2 Images total)

Calcio-Olivin
Views (File:
1417021081
): 2638
Calcio-Olivin
Derb farblos bis weiß-beige, stets eingewachsen und meistens nur von mikroskopisch feiner Korngröße, BB = 6,1 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deutschland.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A014499, Donator: Toni Wieland
Location: Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Mayen/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)
Mineral: Calcio-olivine
Image: 1417021081
License: Usage for Mineralienatlas project only
Calcio-Olivin (SNr: A014499)

Derb farblos bis weiß-beige, stets eingewachsen und meistens nur von mikroskopisch feiner Korngröße, BB = 6,1 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deu...

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-11-26
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Galuskinit in Calcioolivin
Views (File:
1584642069
): 691
Galuskinit in Calcioolivin
Trum von Galuskinit in weißem Calcioolivin, Birkhin Massiv, Narin-Kunta, Irkutsk, Russland; BB ~ 4 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Sibirien, Föderationskreis/Irkutsk (Irkutskaja), Oblast/Narin-Kunta/Birkhin Gabbromassiv
Mineral: Calcio-olivine, Galuskinite
Image: 1584642069
License: Usage for Mineralienatlas project only
Galuskinit in Calcioolivin

Trum von Galuskinit in weißem Calcioolivin, Birkhin Massiv, Narin-Kunta, Irkutsk, Russland; BB 4 mm, analysiert

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-19
Locality: Birkhin Gabbromassiv / Narin-Kunta / Irkutsk (Irkutskaja), Oblast / Sibirien, Föderationskreis / Russland

Collectors Summary

Color beigeweiß bis rötlichbeige
Hardness (Mohs) 4.5
Crystal System orthorhombisch, Pnma

Chemism

Chem­ical formula

Ca2SiO4

Addi­tional chem. informa­tion

Neudefinition September 2007 als Calcium-dominates Endglied der Olivin-Gruppe. Calcio-Olivin ist das natürliche Equivalent von synthetischem γ-Ca2SiO4, nicht von synthetischem α-Ca2SiO4 wie teilweise fälschlich in der Literatur angegeben. Calcio-Olivin ist ein Polymorph von Larnit, monoklinem β-Ca2SiO4.

Chem­ical com­po­si­tion

Calcium, Silicium, Sauerstoff

Unit weight: 172.24005 u; Number of atoms in the formula: 7

Info

Empirical formula:

Ca2SiO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

37.16

4

57.14

15.9994300

63.9977200

Silicon

Si

16.31

1

14.29

28.0855300

28.0855300

Calcium

Ca

46.54

2

28.57

40.0784000

80.1568000

Anal­y­sis wt%

SiO2 : 34.88, CaO : 65.12 (Ref: berechnet)

Strunz 9th edi­tion incl. updates

9.AD.10

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
D: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] und gewöhnlich größerer Koordination
10:Calcio-Olivin-Gruppe

Lapis Clas­sifica­tion

VIII/A.07-040

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

Clas­sifica­tion by Hölzel

9.AB.190

9: SILICATES
A: Nesosilicates
B: Olivine-Group

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt, Neudefinition September 2007

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Classification

Olivine group

Optical Properties

Color

beigeweiß bis rötlichbeige

max. Birefrin­gence

0.012

Birefringence chart\! Calcio-olivine title=Birefringence chart Calcio-olivine

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

1.642

RI value β

1.645

RI value γ / ε

1.654

Ri mean

1.647

2V angle

Biaxial (+) 60°

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell param­e­ters a (Å)

5.06

Cell param­e­ters b (Å)

11.28

Cell param­e­ters c (Å)

6.78

Cell param­e­ters a/b or c/a

0.449

Cell param­e­ters c/b

0.601

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

386.981

Kristall struc­ture

a0 = 5,074 b0 = 11,21 c0 = 6,753

X-Ray Pow­der Diffrac­tion

4.357(30),
3.833(30),
3.040(80),
2.774(60),
2.739(100),
2.482(20),
1.917(60),
1.654(20)

XRD chart Calcio-olivine

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4.5

VHN (Hard­ness Vick­ers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.98

2.956 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Oebbecke, 1877

References

American Mineralogist 51 (1966), 1766.

Acta Crystallographica 17 (1964).

Lapis 6/2009, S.70.

IMA group assignments

Other languages

German

Calcio-Olivin

French

Calcio-Olivine

English

Calcio-olivine

Spanish

Calcio-olivine

Russian

Кальциооливин

Alternative Name

English

Calcioolivine

Lime-Olivine

gamma-Ca2SiO4

CNMNC (IMA)-Number

IMA 07-B

CNMNC symbol

Symbol

Caol

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

German pages

DeWikiPedia - search for: Calcio-Olivin
Google-Bilder-Suche - search for: Calcio-Olivin
Mineralienatlas.de (Forum) - search for: Calcio-Olivin

English pages

Mindat - search for: Calcio-olivine
Webmineral - search for:Calcio-olivine
Handbook-of-Mineralogy - search for: Calcio-olivine
RRUFF - Raman, XRD and other mineral data - search for: Calcio-olivine
RRUFF - References and PDF downloads - search for: Calcio-olivine
American-Mineralogist-Crystal-Structure-Database - search for: Calcio-olivine
Strahlen.org - search for: Calcio-olivine

Russian pages

Webmineral.ru - search for: Кальциооливин

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Calcio-Olivin
Crystal-Treasure.com - search for: Calcio-Olivin
Bosse - search for: Calcio-Olivin
Edelsteine Neuburg - Gundolf Fischer - search for: Calcio-Olivin
Geolitho marketplace, by and for collectors - search for: Calcio-Olivin

Locations with GPS information