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Glaucochroite (Glaukochroit)

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Glaukochroit
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Glaukochroit

Glaukochroit (rosafarben), Willemit (grünlich) und Franklinit (schwarz). Franklin Mining District, Sussex County, New Jersey, USA.

Copyright: Public Domain
Contribution: Collector 2011-02-21
Locality: Franklin Mining District / Sussex Co. / New Jersey / USA

Collectors Summary

Color bläulichgrün
Streak color weiß
Hardness (Mohs) 6
Solubility +++ HCl
Crystal System orthorhombisch, Pbnm

Chemism

Chemical formula

CaMnSiO4

Chemical composition

Calcium, Mangan, Silicium, Sauerstoff

Unit weight: 187.0996999 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaMnSiO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

34.21

4

57.14

15.9994300

63.9977200

Silicon

Si

15.01

1

14.29

28.0855300

28.0855300

Calcium

Ca

21.42

1

14.29

40.0784000

40.0784000

Manganese

Mn

29.36

1

14.29

54.9380499

54.9380499

Analysis wt%

SiO2 : 32.30, MgO : 0.40, CaO : 28.50, ZnO : 1.90, MnO : 37.00 (Ref: American Mineralogist 87)

Strunz 9th edition incl. updates

9.AC.05

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

Lapis Classification

VIII/A.05-030

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

Classification by Hölzel

9.AB.180

9: SILICATES
A: Nesosilicates
B: Olivine-Group

Dana 8th edition

51.03.02.03

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

bläulichgrün

Streak color

weiß

max. Birefringence

0.051

Birefringence chart\! Glaucochroite title=Birefringence chart Glaucochroite

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

1.685

RI value β

1.723

RI value γ / ε

1.736

Ri mean

1.715

2V angle

Biaxial (-) 61°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pbnm

Cell parameters a (Å)

4.92

Cell parameters b (Å)

11.14

Cell parameters c (Å)

6.50

Cell parameters a/b or c/a

0.442

Cell parameters c/b

0.583

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

356.257

X-Ray Powder Diffraction

4.23(40),
3.69(60),
2.96(60),
2.69(80),
2.63(80),
1.85(100),
1.13(50),
1.11(50)

XRD chart Glaucochroite

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)

6

VHN (Hardness Vickers)

730 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.48 (gemessen)

3.488 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

Preface

Author (Name, Year)

Penfield & Warren, 1899

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 291

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

Fayalite

Fe22+SiO4

orthorhombisch : mmm : Pbnm

9.AC.05

Forsterite

Mg2SiO4

orthorhombisch : mmm : Pbnm

9.AC.05

Glaucochroite

CaMnSiO4

orthorhombisch : mmm : Pbnm

9.AC.05

Kirschsteinite

CaFe2+SiO4

orthorhombisch : mmm : Pmnb

9.AC.05

Laihunite

Fe2+Fe3+2(SiO4)2

monoklin : 2/m : P21/a

9.AC.05

'Laihunite-3M' (Pol.v. Laihunite)

0.4Fe2+0.8Fe3+0.8SiO4

monoklin : 2/m : P21/b

9.AC.05

Liebenbergite

(Ni,Mg)2SiO4

orthorhombisch : mmm : Pbnm

9.AC.05

'Olivine group'

Mg1.6Fe2+0.4(SiO4)

orthorhombisch : 2/m 2/m 2/m

9.AC.05

Tephroite

Mn2SiO4

orthorhombisch : mmm : Pbnm

9.AC.05

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

Other languages

English

Glaucochroite

French

Glaucochroite

Spanish

Glaucocroíta

German

Glaukochroit

Russian

Глаукохроит

Alternative Name

German

Calcotephroit

Spanish

Calcotephroita

Calcotephroite

Glauchchroite

German

Glaucochroit

Spanish

Glaucochroita

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Глаукохроит

Mineral Dealer

German pages

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

Locations with GPS information




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