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Masutomilite

Pictures (3 Images total)

Masutomilith
Views (Image: 1469974141): 627
Masutomilith (SNr: A002 482)

von Hirukawa, Nakatsugawa, Chubu, Honshu, Japan; blättrig hellbraun; BB = 12,2 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2016-07-31
Locality: Hirukawa / Nakatsugawa, Stadt / Gifu, Präfektur / Chubu, Region / Honshu / Japan
Zinnwaldit (grau), Masutomilit (lila), Lepidolith (rötlich)
Views (Image: 1279875643): 2188
Zinnwaldit (grau), Masutomilit (lila), Lepidolith (rötlich)

zonierter Kristall; Größe: 65x55x08 mm; Fundort: Mokrusha, Alabashka-Pegmatit, Yuzhakovo, Swerdlowsk Oblast, Russland

Copyright: Pavel M. Kartashov
Contribution: slugslayer 2010-07-23
Locality: Mokrusha / Alabashka-Pegmatitfeld / Yuzhakovo / Swerdlowsk, Oblast (Sverdlovskaya) / Ural, Föderationskreis / Russland
Masutomilith
Views (Image: 1281735219): 987
Masutomilith

Größe: 4,8 x 3,7 x 1,3 cm, Fundort: Sawtooth, Boise Co., Idaho, USA

Copyright: Dan Weinrich
Contribution: thdun5 2010-08-13
Locality: Sawtooth Batholith / Boise Co. / Idaho / USA

Collectors Summary

Color purpurfarben rosa
Streak color weiß
Hardness (Mohs) 2.5
Cleavages vollkommen {001}
Crystal System monoklin, C2

Chemism

Chem­ical formula

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

Chem­ical com­po­si­tion

Aluminium, Lithium, Mangan, Silicium, Fluor, Kalium, Sauerstoff, Wasserstoff

Unit weight: 400.590990925 u; Number of atoms in the formula: 20.5

Info

Empirical formula:

K(Li0.6Al0.3Mn0.1)3(Si0.75Al0.25)4O10(F0.75(OH)0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.13

0.5

2.44

1.0079470

0.5039735

Lithium

Li

3.12

1.8

8.78

6.9412000

12.4941600

Oxygen

O

41.94

10.5

51.22

15.9994300

167.9940150

Fluorine

F

7.11

1.5

7.32

18.9984033

28.4976049

Aluminium

Al

12.80

1.9

9.27

26.9815382

51.2649226

Silicon

Si

21.03

3

14.63

28.0855300

84.2565900

Potassium

K

9.76

1

4.88

39.0983100

39.0983100

Manganese

Mn

4.11

0.3

1.46

54.9380499

16.4814150

Anal­y­sis wt%

SiO2 : 46.85, Al2O3 : 19.81, FeO : 1.53, MnO : 8.12, Li2O : 4.45, Na2O : 0.54, K2O : 9.88, Rb2O : 1.54, F : 7.04, H2O : 2.63 (Ref: Min.J.Jap.86)

Strunz 9th edi­tion incl. updates

9.EC.20

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
20:Phlogopit-Gruppe

Lapis Clas­sifica­tion

VIII/H.11-060

VIII: SILIKATE
H: Schichtsilikate
11: Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Glimmer-Gruppe; Lithionit/Biotit-Reihe

Clas­sifica­tion by Hölzel

9.ED.210

9: SILICATES
E: Phyllosilicates
D: Biotite-Group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Mica group  ⇒ True micas

Optical Properties

Color

purpurfarben rosa

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.036

Birefringence chart\! Masutomilite title=Birefringence chart Masutomilite

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

1.534

RI value β

1.569

RI value γ / ε

1.570

Ri mean

1.558

2V angle

Biaxial (-) 28° - 35° (gemessen)

Ori­enta­tion

Y = b; Z ^ a = 2° -4°

Dis­per­sion

sehr schwach, r > v

Absorp­tion

Y > Z > X

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2

Space Group number

5

Space Group

C2

Cell param­e­ters a (Å)

5.252

Cell param­e­ters b (Å)

9.065

Cell param­e­ters c (Å)

10.107

Cell param­e­ters a/b or c/a

0.579

Cell param­e­ters c/b

1.115

Cell param­e­ters α

90°

Cell param­e­ters β

100.48

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

473.161

X-Ray Pow­der Diffrac­tion

10.10(70),
4.99(30),
3.64(40),
3.35(60),
3.32(100),
3.09(60),
2.903(30),
1.989(50)

XRD chart Masutomilite

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)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.94

2.812 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {001}

(Co-)Type locality

(Co-)Type locality

Japan/Honshu/Kinki, Region/Shiga, Präfektur/Otsu/Tanakamiyama

Type mate­r­ial

Kanazawa University, Kanazawa; Tohoku University, Kawauchi, Japan

Preface

Name from

Dr. Kazunosuke Masutomi, Japanischer Amateur-Mineraloge

Author (Name, Year)

Harada & Nagashima & Kanisawa, 1976

References

Mineralogical Journal (Tokyo) 8 (1976), 95

IMA group assignments

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

Annite

KFe2+3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.20

'Biotite'

K(Mg,Fe2+)3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

9.EC.20

Garmite

CsLiMg2(Si4O10)F2

monoklin : m, 2/m : C2, Cm

9.EC.20

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

9.EC.20

Meifuite

KFe6(Si7Al)O19(OH)4Cl2

triklin : 1 : P1

9.EC.20

Orlovite

KLi2TiSi4O11F

monoklin : 2 : C2

9.EC.20

Wonesite

(Na,K,☐)(Mg,Fe,Al)6(Si,Al)8O20(OH,F)4

triklin : 1 : C1

9.EC.20

Eastonite

KMg2Al[(OH)2|Al2Si2O10]

monoklin : 2 : C2

9.EC.20

Suhailite

(NH4)(Fe2+)3(Si3Al)O10(OH)2

monoklin : C2/m ?

9.EC.20

Norrishite

KLiMn3+2Si4O12

monoklin : 2/m : C2/m

9.EC.20

Phlogopite

KMg3(Si3Al)O10(F,OH)2

monoklin : 2/m : C2/m

9.EC.20

Aspidolite-1M

NaMg3(AlSi3)O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Balestraite

KLi2V5+Si4O12

monoklin : 2 : C2

9.EC.20

Fluorannite

KFe32+[(F,OH)2|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.20

Gorbunovite

CsLi2(Ti,Fe)Si4O10(F,OH,O)2

monoklin : 2/m, 2, m : C2/m, C2, Cm

9.EC.20

Sokolovaite

CsLi2AlSi4O10F2

9.EC.20

'Zinnwaldite'

KLiFe2+Al(AlSi3)O10(F,OH)2

monoklin : 2 : C2

9.EC.20

Hendricksite

K(Zn,Mn)3Si3AlO10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Yangzhumingite

KMg2.5Si4O10F2

monoklin : 2/m : C2/m

9.EC.20

Fluorotetraferriphlogopite

KMg3Fe3+Si3O10F2

monoklin : 2/m : C2/m

9.EC.20

Preiswerkite

NaMg2Al3Si2O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

'Shirozulite'

K(Mn2+,Mg)3[(OH)2|AlSi3O10]

9.EC.20

Kreiterite

CsLi2Fe3+Si4O10F2

monoklin : 2/m, m, 2 : C2/m, C2, Cm

9.EC.20

Masutomilite

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

monoklin : 2 : C2

9.EC.20

Oxyphlogopite

K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2

monoklin : 2/m : C2/m

9.EC.20

Shirokshinite

KNaMg2[F2|Si4O10]

monoklin : 2/m : C2/m

9.EC.20

Trilithionite

KLi1.5Al1.5[F2|AlSi3O10]

monoklin : 2/m : C2/m

9.EC.20

Polylithionite

KLi2AlSi4O10(F,OH)2

monoklin : 2/m : C2/m

9.EC.20

Siderophyllite

KFe22+Al(Al2Si2)O10(F,OH)2

monoklin : 2 : C2/m

9.EC.20

'Spodiophyllite'

(Na,K)4(Mg,Fe2+)3(Fe3+,Al)2(Si8O24)

9.EC.20

'Fluorphlogopite'

K(Mg,Fe2+)3(Si3Al)O10(F,OH)2

9.EC.20

Fluorophlogopite

KMg3(AlSi3)O10F2

monoklin : 2/m : C2/m

9.EC.20

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

9.EC.20

Tetraferriphlogopite

KMg3[(F,OH)2|(Al,Fe3+)Si3O10]

monoklin : 2/m : C2/m

9.EC.20

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

Polylithionite

KLi2AlSi4O10(F,OH)2

monoklin : 2/m : C2/m

VIII/H.11-010

Orlovite

KLi2TiSi4O11F

monoklin : 2 : C2

VIII/H.11-012

Sokolovaite

CsLi2AlSi4O10F2

VIII/H.11-015

Yangzhumingite

KMg2.5Si4O10F2

monoklin : 2/m : C2/m

VIII/H.11-018

Tainiolite

KLiMg2Si4O10F2

monoklin : 2/m : C/2m

VIII/H.11-020

Norrishite

KLiMn3+2Si4O12

monoklin : 2/m : C2/m

VIII/H.11-030

Shirokshinite

KNaMg2[F2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.11-035

Montdorite

KMn0.52+Fe1.52+Mg0.5[F2|Si4O10]

monoklin : 2/m : C2/m

VIII/H.11-040

Trilithionite

KLi1.5Al1.5[F2|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.11-050

Voloshinite

Rb(LiAl1.50.5)(Al0.5Si3.5)O10F2

monoklin : C2/c

VIII/H.11-055

Masutomilite

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

monoklin : 2 : C2

VIII/H.11-060

Aspidolite-1M

NaMg3(AlSi3)O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-070

Oxyphlogopite

K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2

monoklin : 2/m : C2/m

VIII/H.11-073

'Fluorphlogopite'

K(Mg,Fe2+)3(Si3Al)O10(F,OH)2

VIII/H.11-075

Phlogopite

KMg3(Si3Al)O10(F,OH)2

monoklin : 2/m : C2/m

VIII/H.11-080

Fluorotetraferriphlogopite

KMg3Fe3+Si3O10F2

monoklin : 2/m : C2/m

VIII/H.11-088

Tetraferriphlogopite

KMg3[(F,OH)2|(Al,Fe3+)Si3O10]

monoklin : 2/m : C2/m

VIII/H.11-090

Hendricksite

K(Zn,Mn)3Si3AlO10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-100

'Shirozulite'

K(Mn2+,Mg)3[(OH)2|AlSi3O10]

VIII/H.11-102

Fluorannite

KFe32+[(F,OH)2|AlSi3O10]

monoklin : 2/m : C2/m

VIII/H.11-105

Annite

KFe2+3(Si3Al)O10(OH,F)2

monoklin : 2/m : C2/m

VIII/H.11-110

'Tetraferriannite'

KFe2+3(Si3Fe3+)O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-120

Suhailite

(NH4)(Fe2+)3(Si3Al)O10(OH)2

monoklin : C2/m ?

VIII/H.11-125

'Ephesite'

NaLiAl2(Al2Si2)O10(OH)2

monoklin : m : Cc

VIII/H.11-130

Preiswerkite

NaMg2Al3Si2O10(OH)2

monoklin : 2/m : C2/m

VIII/H.11-140

Eastonite

KMg2Al[(OH)2|Al2Si2O10]

monoklin : 2 : C2

VIII/H.11-150

Siderophyllite

KFe22+Al(Al2Si2)O10(F,OH)2

monoklin : 2 : C2/m

VIII/H.11-160

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

'Zinnwaldite'

KLiFe2+Al(AlSi3)O10(F,OH)2

monoklin : 2 : C2

9.ED.200

'Protolithionite'

9.ED.205

Masutomilite

K(Li,Al,Mn2+)3(Si,Al)4O10(F,OH)2

monoklin : 2 : C2

9.ED.210

Tainiolite

KLiMg2Si4O10F2

monoklin : 2/m : C/2m

9.ED.240

Norrishite

KLiMn3+2Si4O12

monoklin : 2/m : C2/m

9.ED.250

'Lepidolite'

K(Li,Al)3[(F,OH)2|(Al,Si)Si3O10]

9.ED.260

Polylithionite

KLi2AlSi4O10(F,OH)2

monoklin : 2/m : C2/m

9.ED.270

Trilithionite

KLi1.5Al1.5[F2|AlSi3O10]

monoklin : 2/m : C2/m

9.ED.280

Sokolovaite

CsLi2AlSi4O10F2

9.ED.290

Orlovite

KLi2TiSi4O11F

monoklin : 2 : C2

9.ED.295

Other languages

Spanish

Masutomilita

English

Masutomilite

French

Masutomilite

German

Masutomilith

Russian

Масутомилит

Japanese

益富雲母 

Alternative Name

German

Masutomilit

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