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Calderite

Pictures (2 Images total)

Calderit
Views (File:
1257852977
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Calderit
Bildbreite: 3,4 cm, Fundort: Otjosondu, Otjozondjupa Region, Namibia.
Copyright: Dan Weinrich; Contribution: thdun5
Location: Namibia/Otjozondjupa, Region/Otjosondu
Mineral: Calderite
Image: 1257852977
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Calderit

Bildbreite: 3,4 cm, Fundort: Otjosondu, Otjozondjupa Region, Namibia.

Copyright: Dan Weinrich
Contribution: thdun5 2009-11-10
Locality: Otjosondu / Otjozondjupa, Region / Namibia
Calderit
Views (File:
1332944316
): 1718
Calderit
Vielflächige braune Kristalle, BB = 3 cm, Fundort: Otjosondu, Otjozondjupa Region, Namibia.
Copyright: Heribert Rotter; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B001952, Donator: Melanie Albert
Location: Namibia/Otjozondjupa, Region/Otjosondu
Mineral: Calderite
Image: 1332944316
License: Usage for Mineralienatlas project only
Calderit (SNr: B001952)

Vielflächige braune Kristalle, BB = 3 cm, Fundort: Otjosondu, Otjozondjupa Region, Namibia.

Collection: Lithothek der Münchener Micromounter
Copyright: Heribert Rotter
Contribution: Münchener Micromounter 2012-03-28
Locality: Otjosondu / Otjozondjupa, Region / Namibia

You find additional specimen at the Geolitho Museum

Collectors Summary

Color dunkel gelb, rötlich gelb
Streak color weiß
Crystal System kubisch, Ia3d
Morphology kubisch

Chemism

Chemical formula

{Mn2+3}[Fe3+2](Si3)O12

Chemical composition

Eisen, Mangan, Silicium, Sauerstoff

Unit weight: 552.7542997 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Mn3}[Fe2](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

34.73

12

60.00

15.9994300

191.9931600

Silicon

Si

15.24

3

15.00

28.0855300

84.2565900

Manganese

Mn

29.82

3

15.00

54.9380499

164.8141497

Iron

Fe

20.21

2

10.00

55.8452000

111.6904000

Strunz 9th edition incl. updates

9.AD.25

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

Lapis Classification

VIII/A.08-040

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
8: Kationen in kubischer und oktaedrischer Koordination [8+6]; Granat-Gruppe

Classification by Hölzel

9.AC.150

9: SILICATES
A: Nesosilicates
C: Garnet-Group
1: Pyralspites - 8-coord. Mg, Fe(2+), Mn(2+); Pyrope - Spessartine-Group

Dana 8th edition

51.04.03a.06

51: Nesosilicate Minerals
04: Nesosilicates Nesosilicate Insular SiO4 Groups Only with cations in [6] and >[6] coordination
03a: Garnet group (Pyralspite series)

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Garnet supergroup  ⇒ Silicate garnets; Garnet group (Z charge 12)

Optical Properties

Color

dunkel gelb, rötlich gelb

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

RI value α / ω / n

1.872

Ri mean

1.872

2V angle

Isotropisch

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

11.82

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

8

Volume (ų)

1651.401

X-Ray Powder Diffraction

2.92(100),
2.62(100),
2.39(90),
1.906(80),
1.632(90),
1.574(90),
1.474(70),
0.968(90)

XRD chart Calderite

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

Morphology

kubisch

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.08

4.446 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Fermor, 1909

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 107.

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel]

IMA group assignments

Other languages

German

Calderit

Spanish

Calderita

English

Calderite

French

Calderite

Russian

Кальдерит

Alternative Name

Calderite (of Fermor)

CNMNC symbol

Symbol

Cdr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) TTDXNpw_M0m4Gge0BCIglQ
GUID (Global unique identifier) 36D7304D-3F9C-4933-B81A-07B404222095
Database ID 579