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Morimotoite

Pictures (2 Images total)

Morimotoit
Views (File:
1477520702
): 624
Morimotoit
Morimotoit als glänzende schwarze Kruste von der Fuka Mine in Japan. Stufe von Alfredo Petrov
Copyright: Stefan; Contribution: Stefan
Location: Japan/Honshū (Honschu), Insel/Chūgoku (Tschugoku, Chugoku), Region/Okayama, Präfektur/Takahashi/Bitchu (Bicchu)/Fuka Mine
Mineral: Morimotoite
Image: 1477520702
License: Usage for Mineralienatlas project only
Morimotoit

Morimotoit als glänzende schwarze Kruste von der Fuka Mine in Japan. Stufe von Alfredo Petrov
Copyright: Stefan
Contribution: Stefan 2016-10-27
Locality: Fuka Mine / Bitchu (Bicchu) / Takahashi / Okayama, Präfektur / Chūgoku (Tschugoku, Chugoku), Region / Honshū (Honschu), Insel / Japan
Morimotoit
Views (File:
1572212756
): 307
Morimotoit
Bildbreite ca. 1 mm; Japan/Hokkaido/Hokkaido, Präfektur/Hidaka, Unterpräfektur/Saru, Landkreis/Hidaka/Chisaka/Serpentinitsteinbruch; Seltenheit; winzige gut ausgebildete Morimotoit-Kristalle; Stufe: Alfredo Petrov
Copyright: Stefan; Contribution: Stefan
Location: Japan/Hokkaidō (Hokkaido), Insel/Hokkaidō (Hokkaido), Präfektur/Hidaka, Unterpräfektur/Saru, Landkreis/Hidaka/Chisaka/Serpentinitsteinbruch
Mineral: Morimotoite
Image: 1572212756
License: Usage for Mineralienatlas project only
Morimotoit

Bildbreite ca. 1 mm; Japan/Hokkaido/Hokkaido, Präfektur/Hidaka, Unterpräfektur/Saru, Landkreis/Hidaka/Chisaka/Serpentinitsteinbruch; Seltenheit; winzige gut ausgebildete Morimotoit-Kristalle; Stufe...
Copyright: Stefan
Contribution: Stefan 2019-10-27
Locality: Serpentinitsteinbruch / Chisaka / Hidaka / Saru, Landkreis / Hidaka, Unterpräfektur / Hokkaidō (Hokkaido), Präfektur / Hokkaidō (Hokkaido), Insel / Japan

Collectors Summary

Color schwarz
Streak color grau
Hardness (Mohs) 7.5
Cleavages nicht beobachtet
Fracture halbmuschelig
Crystal System kubisch, Ia3d

Chemism

Chemical formula

{Ca3}[TiFe2+](Si3)O12

Chemical composition

Calcium, Eisen, Silicium, Titan, Sauerstoff

Unit weight: 500.19725 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Ca3}[TiFe](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

38.38

12

60.00

15.9994300

191.9931600
Silicon

Si

16.84

3

15.00

28.0855300

84.2565900
Calcium

Ca

24.04

3

15.00

40.0784000

120.2352000
Titanium

Ti

9.57

1

5.00

47.8671000

47.8671000
Iron

Fe

11.16

1

5.00

55.8452000

55.8452000

Analysis wt%

SiO2 : 26.93, TiO2 : 18.51, ZrO2 : 1.48, Al2O3 : 0.97, Fe2O3 : 11.42, FeO : 7.78, MgO : 0.87, CaO : 31.35 (Ref: Mineralogical Magazine 95)

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.08-125

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

Classification by Hölzel

9.AC.510

9: SILICATES
A: Nesosilicates
C: Garnet-Group
5: Schorlomite-Group - 6-coord. Ti, Zr, Sn

Dana 8th edition

51.04.03c.03

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

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

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

Optical Properties

Color

schwarz

Streak color

grau

Diaphaneity (Transparency)

opak

max. Birefringence

0.000

RI value α / ω / n

1.995

Ri mean

1.995

2V angle

Isotropisch

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

12.162

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

Volumne (ų)

1798.933

X-Ray Powder Diffraction

3.039(70),
2.720(100),
2.593(20),
2.483(50),
2.385(20),
1.973(20),
1.687(30),
1.626(60)
XRD chart Morimotoite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

7.5

VHN (Hardness Vickers)

1110 (50g)

Density (g/cm³)

3.75

3.694 ( ρ calc. Mineralienatlas )

Cleavages

nicht beobachtet

Fracture

halbmuschelig

(Co-)Type locality

(Co-)Type locality

Japan/Honshū (Honschu), Insel/Chūgoku (Tschugoku, Chugoku), Region/Okayama, Präfektur/Takahashi/Bitchu (Bicchu)/Fuka Mine

Preface

Author (Name, Year)

Henmi & Kusachi & Henmi, 1995

References

Mineralogical Magazine 59 (1995), 115.

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

 
Garnet supergroup
{X3}[Y2](Z3)φ12
 
 

 
 
Silicate garnets; Garnet group (Z charge 12)
 
 
 

 
 
 
Almandine
{Fe2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Andradite
{Ca3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Calderite
{Mn2+3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Eringaite
{Ca3}[Sc2](Si3)O12
kubisch
Ia3d

 
 
 
Goldmanite
{Ca3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Grossular
{Ca3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Hutcheonite
{Ca3}[Ti2](SiAl2)O12
kubisch
Ia3d

 
 
 
Knorringite
{Mg3}[Cr3+2](Si3)O12
kubisch
Ia3d

 
 
 
Majorite
{Mg3}[MgSi](Si3)O12
kubisch
 

 
 
 
Menzerite-(Y)
{Y2Ca}[Mg2](Si3)O12
kubisch
Ia3d

 
 
 
Momoiite
{Mn2+3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Morimotoite
{Ca3}[TiFe2+](Si3)O12
kubisch
Ia3d

 
 
 
Pyrope
{Mg3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Spessartine
{Mn2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Uvarovite
{Ca3}[Cr3+2](Si3)O12
kubisch
Ia3d

Refresh list

Actuality: 29. Sep 2023 - 20:58:38

Other languages

German

Morimotoit

French

Morimotoite

English

Morimotoite

Spanish

Morimotoíta

Russian

Моримотоит

Japanese

森本石榴石

CNMNC (IMA)-Number

IMA 1992-017

CNMNC symbol

Symbol

Mmt

Locations with GPS information

IDs

GUSID (Global unique identifier short form) ny_roZf2KEG1jiTnrVF0mQ
GUID (Global unique identifier) A1EB2F9F-F697-4128-B58E-24E7AD517499
Database ID 2608