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Sugilite (Sugilit)

Pictures (34 Images total)

Sugilith auf Baryt
Views (File:
1243191845
): 5061
Sugilith auf Baryt
Größe: 24x21x12 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, Südafrika
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)
Mineral: Sugilite
Image: 1243191845
Rating: 7.5 (votes: 2)
License: Usage for Mineralienatlas project only
Sugilith auf Baryt

Größe: 24x21x12 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, Südafrika

Copyright: Rob Lavinsky
Contribution: Philip Blümner 2009-05-24
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Sugilith
Views (File:
1311875896
): 2439
Sugilith
Größe: 53x39x27 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganfelder, Provinz Nordkap, Südafrika
Copyright: Dan Weinrich; Contribution: Philip Blümner
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)
Mineral: Sugilite
Image: 1311875896
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Sugilith

Größe: 53x39x27 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganfelder, Provinz Nordkap, Südafrika

Copyright: Dan Weinrich
Contribution: Philip Blümner 2011-07-28
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Sugilith in Matrix
Views (File:
1159375954
): 2582
Sugilith in Matrix
Fundort: Wessels Mine , Hotazel, Kalahari Manganerzfeld, Südafrika; Größe: Bildbreite ca. 4 mm
Copyright: Torben; Contribution: Torben
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)
Mineral: Sugilite
Image: 1159375954
Rating: 6.67 (votes: 3)
License: Usage for Mineralienatlas project only
Sugilith in Matrix

Fundort: Wessels Mine , Hotazel, Kalahari Manganerzfeld, Südafrika; Größe: Bildbreite ca. 4 mm

Copyright: Torben
Contribution: Torben 2006-09-27
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Sugilith
Views (File:
1215872155
): 8668
Sugilith
FO: Wessels Mine, Kuruman, Kap-Provinz, REpublik Südafrika; blockige, violette Kristalle; BB: 17,5 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B000937, Donator: Melanie Albert
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)
Mineral: Sugilite
Image: 1215872155
Rating: 6.67 (votes: 3)
License: Usage for Mineralienatlas project only
Sugilith (SNr: B000937)

FO: Wessels Mine, Kuruman, Kap-Provinz, REpublik Südafrika; blockige, violette Kristalle; BB: 17,5 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2008-07-12
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika
Sugilith auf Pektolith
Views (File:
1243191889
): 4359
Sugilith auf Pektolith
Kristallgröße: 10 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, Südafrika
Copyright: Jasun McAvoy; Contribution: Philip Blümner
Location: Südafrika/Nordkap (Northern Cape), Provinz/Kalahari Manganese Field/Hotazel/Wessel's Mine (Wessels Mine)
Mineral: Sugilite
Image: 1243191889
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Sugilith auf Pektolith

Kristallgröße: 10 mm; Fundort: Wessels Mine, Hotazel, Kalahari Manganese Fields, Northern Cape Province, Südafrika

Copyright: Jasun McAvoy
Contribution: Philip Blümner 2009-05-24
Locality: Wessel's Mine (Wessels Mine) / Hotazel / Kalahari Manganese Field / Nordkap (Northern Cape), Provinz / Südafrika

You find additional specimen at the Geolitho Museum

Collectors Summary

Color bräunlichgelb, violett, rötlich violet
Streak color weiß
Hardness (Mohs) 6.2 (6 - 6.5)
Crystal System hexagonal, P6/mmc

Additional information / Summary

Chemism

Chemical formula

KNa2(Fe2+,Mn2+,Al)2Li3Si12O30

Chemical composition

Aluminium, Eisen, Lithium, Mangan, Natrium, Silicium, Kalium, Sauerstoff

Unit weight: 1028.28408798 u; Number of atoms in the formula: 50

Info

Empirical formula:

KNa2(Fe0.6Mn0.3Al0.1)2Li3Si12O30

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Lithium

Li

2.03

3

6.00

6.9412000

20.8236000

Oxygen

O

46.68

30

60.00

15.9994300

479.9829000

Sodium

Na

4.47

2

4.00

22.9897702

45.9795404

Aluminium

Al

0.52

0.2

0.40

26.9815382

5.3963076

Silicon

Si

32.78

12

24.00

28.0855300

337.0263600

Potassium

K

3.80

1

2.00

39.0983100

39.0983100

Manganese

Mn

3.21

0.6

1.20

54.9380499

32.9628299

Iron

Fe

6.52

1.2

2.40

55.8452000

67.0142400

Analysis wt%

SiO2 : 71.38, TiO2 : 0.51, Al2O3 : 2.97, Fe2O3 : 12.76, Li2O : 3.14, Na2O : 4.37, K2O : 3.76, H2O : 0.93 (Ref: Min.J.Jap.76)

Strunz 9th edition incl. updates

9.CM.05

9: Silikate (Germanate)
C: Ringsilikate (Cyclosilikate)
M: ~[Si6O18]12- sechser-Doppelringe
05:Milarit-Gruppe

Lapis Classification

VIII/E.22-110

VIII: SILIKATE
E: Ringsilikate
22: Doppelte Sechserringe [Si12O30] 12-; Milarit/Osumilith-Gruppe

Classification by Hölzel

9.CF.200

9: SILICATES
C: Cyclosilicates
F: ~[Si12O30]12--Rings Milarite-Group

Dana 8th edition

63.02.01a.09

63: Cyclosilicates Cyclosilicate Condensed Rings
02: Cyclosilicates Cyclosilicate Condensed Rings 6-membered rings
01a: Milarite - Osumilite group (Milarite - Osumilite subgroup)

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Osumilite Group

Optical Properties

Color

bräunlichgelb, violett, rötlich violet

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.003

Birefringence chart\! Sugilite title=Birefringence chart Sugilite

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

1.610

RI value γ / ε

1.607

Ri mean

1.609

2V angle

Uniaxial (-)

Crystallography

Crystal System

hexagonal

Class (H-M)

6/mmm

Space Group number

192

Space Group

P6/mmc

Cell parameters a (Å)

9.986

Cell parameters b (Å)

-

Cell parameters c (Å)

13.936

Cell parameters a/b or c/a

1.396

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

2

Volume (ų)

1203.516

X-Ray Powder Diffraction

6.98(1), 4.32(10), 4.06(6), 3.68(1), 3.50(2), 3.19(8), 2.876(5), 2.499(2)

XRD chart Sugilite

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)

6.2 (6 - 6.5)

VHN (Hardness Vickers)

850 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.74

2.837 ( ρ calc. Mineralienatlas )

Preface

Name from

dem japanischen Geologen Ken-ichi Sugi (1901-1948), er entdeckte das Mineral im Jahr 1944

Author (Name, Year)

Murakami et al., 1976

References

S. Weiß: Edle Steine für Schmuck und mehr, Folge 19: Sugilith. Lapis Jhrg. 34, Nr. 4 (2009) S.8.

Neues Jahrbuch für Mineralogie, Monatshefte (1990), 443

Mineralogical Magazine 58 (1994), 671

Mineralogical Journal (Tokyo) 8 (1976), 110

American Mineralogist 73 (1988), 595

IMA group assignments


 
 
YCaKBe3Si12O30·H2O
hexagonal
P6/mcc

 
 
(K,Na)(Mn2+,Fe2+,Mg)2(Be,Al)3[Si12O30]
hexagonal
P6/mcc

 
 
KNa2Al2Li3Si12O30
hexagonal
P6/mcc

 
 
BaCa2Al6Si9O30·2 H2O
orthorhombisch
Pnc2

 
 
KLi3Ti2[Si12O30]
hexagonal
P6/mcc

 
 
KSn2Li3Si12O30
hexagonal
P6/mcc

 
 
KNa2Li(Mn,Zn)2ZrSi12O30
hexagonal
P6/mcc

 
 
K(K,Na)2(Zn,Li)3(Mn2+,Mn3+,Y,Zr)2[Si12O30]
hexagonal
P6/mcc

 
 
KNa3Mg4Si12O30
hexagonal
P6/mcc

 
 
K(☐Na)Mg2(Be2Mg)Si12O30
hexagonal
P6/mcc

 
 
KNaFe2Zn3[Si12O30]
hexagonal
P63/mmc

 
 
Mg2K(Be2Al)Si12O30
hexagonal
P6/mcc

 
 
(K,Na)2(Fe2+,Mg)5Si12O30
hexagonal
P6/mcc

 
 
KCa2(Be2AlSi12)O30·H2O
hexagonal
P6/mcc

 
 
(K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30
hexagonal
P6/mcc

 
 
KMg2Al3(Al2Si10)O30
hexagonal
P6/mcc

 
 
KNa2B3Si12O30
hexagonal
P6/mcc

 
 
KNaMg2(Mg3Si12)O30
hexagonal
P62c

 
 
K<3(Ca,Mn,Na)2Zn3[Si12O30]
hexagonal
P6/mcc

 
 
(K,Na)2(Li,Fe3+,Al)3ZrSi12O30
hexagonal
P6/mcc

 
 
KNa2(Fe2+,Mn2+,Al)2Li3Si12O30
hexagonal
P6/mmc

 
 
(Fe,Mg)2(Mg,Fe)3(Si12O30)
hexagonal
P6/mcc

 
 
NaMg2(AlMg2Si12)O30
hexagonal
P6/mcc

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Actuality: 10. Jul 2024 - 10:39:51

Other languages

Spanish

Sugilita

French

Sugilite

English

Sugilite

German

Sugilith

Russian

Сугилит

Alternative Name

German

Lavulit

Spanish

Lavulita

Lavulite

Luvulite

Royal Azel

Royal Lavulite

Royal Lazelle

German

Sugilit

Japanese

杉石

舒俱徠石

CNMNC (IMA)-Number

IMA 1974-060

CNMNC symbol

Symbol

Sug

Locations with GPS information

IDs

GUSID (Global unique identifier short form) hhgsXXg_LU26V8Nq64cNYw
GUID (Global unique identifier) 5D2C1886-3F78-4D2D-BA57-C36AEB870D63
Database ID 3689