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Yoshimuraite (Yoshimurait)

Pictures (3 Images total)

Yoshimurait
Views (File:
1413888433
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Yoshimurait
Ca. 1 cm größer Yoshimurait aus dem Matsumaezawa Tagebau, Tanohata Mine, Shimohei-gun, Honshu, Japan;
Copyright: Stefan; Contribution: Stefan
Location: Japan/Honshū (Honschu), Insel/Tōhoku (Tohoku), Region/Iwate, Präfektur/Shimohei-gun/Tanohata/Tanohata Mine/Matsumaezawa Tagebau (Erzkörper Nr. 3)
Mineral: Yoshimuraite
Image: 1413888433
License: Usage for Mineralienatlas project only
Yoshimurait

Ca. 1 cm größer Yoshimurait aus dem Matsumaezawa Tagebau, Tanohata Mine, Shimohei-gun, Honshu, Japan;
Copyright: Stefan
Contribution: Stefan 2014-10-21
Locality: Matsumaezawa Tagebau (Erzkörper Nr. 3) / Tanohata Mine / Tanohata / Shimohei-gun / Iwate, Präfektur / Tōhoku (Tohoku), Region / Honshū (Honschu), Insel / Japan
Yoshimurait
Views (File:
1459166775
): 550
Yoshimurait
von der Taguchi Mine, Shidara, Okazaki, Aichi, Japan; tafelige, abgerollte dunkelrote Kristalle; BB = 1,5 mm; T
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B006082, Donator: anatase2
Location: Japan/Honshū (Honschu), Insel/Chūbu (Chubu), Region/Aichi, Präfektur/Kitashitara, Landkreis/Shitara/Taguchi Mine
Mineral: Yoshimuraite
Image: 1459166775
License: Usage for Mineralienatlas project only
Yoshimurait (SNr: B006082)

von der Taguchi Mine, Shidara, Okazaki, Aichi, Japan; tafelige, abgerollte dunkelrote Kristalle; BB = 1,5 mm; T
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2016-03-28
Locality: Taguchi Mine / Shitara / Kitashitara, Landkreis / Aichi, Präfektur / Chūbu (Chubu), Region / Honshū (Honschu), Insel / Japan
Yoshimurait
Views (File:
1564930143
): 362
Yoshimurait
Taguchi Mine, Shidara, Okazaki, Aichi, Japan. Bildbreiete 0,7 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Japan/Honshū (Honschu), Insel/Chūbu (Chubu), Region/Aichi, Präfektur/Kitashitara, Landkreis/Shitara/Taguchi Mine
Mineral: Yoshimuraite
Image: 1564930143
License: Usage for Mineralienatlas project only
Yoshimurait

Taguchi Mine, Shidara, Okazaki, Aichi, Japan. Bildbreiete 0,7 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-08-04
Locality: Taguchi Mine / Shitara / Kitashitara, Landkreis / Aichi, Präfektur / Chūbu (Chubu), Region / Honshū (Honschu), Insel / Japan

You find additional specimen at the Geolitho Museum

Collectors Summary

Color orange, rot, dunkelbraun
Hardness (Mohs) 4.5
Cleavages vollkommen {010}, ausgeprägt {101}
Crystal System triklin, P1

Chemism

Chemical formula

Ba2Mn2+2Ti(Si2O7)(PO4)O(OH)

Chemical composition

Barium, Mangan, Silicium, Titan, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 728.543958 u; Number of atoms in the formula: 22

Info

Empirical formula:

Ba2Mn2Ti(Si2O7)(PO4)O(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.14

1

4.55

1.0079470

1.0079470
Oxygen

O

28.55

13

59.09

15.9994300

207.9925900
Silicon

Si

7.71

2

9.09

28.0855300

56.1710600
Phosphorus

P

4.25

1

4.55

30.9737612

30.9737612
Titanium

Ti

6.57

1

4.55

47.8671000

47.8671000
Manganese

Mn

15.08

2

9.09

54.9380499

109.8760998
Barium

Ba

37.70

2

9.09

137.3277000

274.6554000

Analysis wt%

SiO2 : 18.25, TiO2 : 10.00, Fe2O3 : 1.32, MnO : 17.64, FeO : 1.47, MgO : 0.56, ZnO : 0.50, BaO : 33.51, SrO : 4.62, P2O5 : 3.98, SO3 : 5.40, Cl : 0.41, H2O : 2.34 (Ref: American Mineralogist 61)

Strunz 9th edition incl. updates

9.BE.42

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
E: Si2O7 Gruppen mit zusätzlichen Anionen; Kationen in oktahedraler [6] und größerer Koordination
42:Yoshimurait-Gruppe

Lapis Classification

VIII/C.14-100

VIII: SILIKATE
C: Gruppensilikate
14: Gruppensilikate [Si2O7] 6-, mit tetraederfremden Anionen (O,OH,F); Reihe Murmanit-Lomonosovit

Classification by Hölzel

9.BO.100

9: SILICATES
B: Sorosilicates
O: Yoshimuraite-Group

Dana 8th edition

58.02.06.01

58: Sorosilicates Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
02: Sorosilicates Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n=1,2)
06: Yoshimuraite and related species

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Seidozerite supergroup  ⇒ Bafertisite group

Optical Properties

Color

orange, rot, dunkelbraun

Change in color

im Durchlicht braun, orange-braun bis gelb

Diaphaneity (Transparency)

transparent, durchscheinend

max. Birefringence

0.022
Birefringence chart\! Yoshimuraite title=Birefringence chart Yoshimuraite

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

1.763 - 1.768

RI value β

1.777

RI value γ / ε

1.785 - 1.894

Ri mean

1.777

2V angle

Biaxial (+) 80° - 90° (gemessen)

Orientation

X' ≃ a; Z' ≃ c

Dispersion

r > v

Absorption

Z ≥ Y > Z

Pleochroism

X = hellgelb, Y = orange-braun, Z = braun

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

1

Space Group

P1

Cell parameters a (Å)

5.386

Cell parameters b (Å)

6.999

Cell parameters c (Å)

14.748

Cell parameters a/b or c/a

0.770

Cell parameters c/b

2.107

Cell parameters α

89.98

Cell parameters β

93.62

Cell parameters γ

95.50

Z

2

Volume (ų)

552.277

X-Ray Powder Diffraction

4.90(60),
4.11(40),
3.40(100),
3.24(60),
3.13(40),
3.05(40),
2.94(100),
2.78(60)
XRD chart Yoshimuraite

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)

4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.21 (berechnet) 4.13 - 4.20 (gemessen)

4.381 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {010}, ausgeprägt {101}

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

Japan/Honshū (Honschu), Insel/Tōhoku (Tohoku), Region/Iwate, Präfektur/Noda-Tamagawa Mine/Misago Erzkörper

Type material

National Science Museum, Tokyo, Japan

The Natural History Museum, London, England

Harvard University, Cambridge, Massachusetts, USA

Museum of Natural History, Washington, D.C., USA

Collection number of type material

M15110 (Tokyo); 106170 (Cambridge); 107416 (Washington)

Preface

Name from

Professor Toyofumi Yoshimura, Kyushu University, Hakozaki, Japan

Author (Name, Year)

Watanabe & Takéuchi & Ito, 1961

References

Canadian Mineralogist 44 (2006), 1273

IMA group assignments

Other languages

German

Yoshimurait

English

Yoshimuraite

French

Yoshimuraite

Spanish

Yoshimuraíta

Russian

Иошимураит

Alternative Name

Japanese

吉村石

CNMNC symbol

Symbol

Ysh

Locations with GPS information

IDs

GUSID (Global unique identifier short form) RYpjGbPhO0Gp1_67Has_Iw
GUID (Global unique identifier) 19638A45-E1B3-413B-A9D7-FEBB1DAB3F23
Database ID 4238