Sugilite Mineral Data (original) (raw)

General Sugilite Information

Help on Chemical Formula: Chemical Formula:

KNa2(Fe+++,Mn+++,Al)2Li3Si12O30

Help on Composition: Composition:

Molecular Weight = 1,041.66 gm

Potassium 3.04 % K 3.66 % K2O

Sodium 1.83 % Na 2.47 % Na2O

Lithium 1.41 % Li 3.04 % Li2O

Titanium 0.28 % Ti 0.46 % TiO2

Manganese 3.11 % Mn 4.47 % Mn2O3

Aluminum 1.53 % Al 2.89 % Al2O3

Iron 8.79 % Fe 12.57 % Fe2O3

Silicon 32.35 % Si 69.22 % SiO2

Hydrogen 0.18 % H 1.57 % H2O

Oxygen 47.48 % O

______ ______

100.00 % 100.35 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

K0.81Na0.19(H2O)0.91Na0.64Fe3+1.32Mn3+0.59Ti0.06Fe3+0.03Li2.12Al0.59Fe3+0.29Si12O30

Help on Environment: Environment:

Stratabound, metamorphosed manganese deposits and peralkaline ignous rocks.

Help on IMA Status: IMA Status:

Approved IMA 1976

Help on Locality: Locality:

Iwagi Islet, Ehime Prefecture, Japan. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Ken-ichi Sugi (1901-1948), Japanese petrologist

Help on Name Pronunciation: Name Pronunciation:

Sugilite Say SUGILITE

Help on Synonym: Synonym:

ICSD 202624

PDF 47-1840

Sugilite Image

Click Here for Larger Sugilite Image in a New Browser Window Images:

Click Here for Larger Sugilite Image Sugilite Effenbergerite Comments: Blue effenbergerite pods to across in massive purple sugilite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa.Scale: Crystal size 4 mm. © John Veevaert

Click Here for Larger Sugilite Image in a New Browser Window Images:

Click Here for Larger Sugilite Image Sugilite Pectolite Comments: Sharp terminated purple crystals of sugilite to 5mm on white, acicular pectolite. Location: Wessels Mine, Kalahari, South Africa.Scale: Picture size 1.5 cm. © John Veevaert

Sugilite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:1.39934

Help on Cell Dimensions: Cell Dimensions:

a = 10.009, c = 14.006, Z = 2; V = 1,215.14 Den(Calc)= 2.85

Help on Crystal System: Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6/mcc

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 4.32(1), 3.19(0.81), 4.06(0.57),

Click Here for Large Sugilite Structure Window Crystal Structure:

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| | Armbruster T , Oberhansli R , American Mineralogist , 73 (1988) p.595-600, Crystal chemistry of double-ring silicates: Structures of sugilite and, brannockite, Note: x-coordinate of Na has been corrected | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Sugilite

Help on Cleavage: Cleavage:

{0001} Indistinct

Help on Color: Color:

Brownish yellow, Violet, Reddish violet, Pale pink.

Help on Density: Density:

2.74

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Habit: Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Hardness: Hardness:

6-6.5 - Orthoclase-Pyrite

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Sugilite

Help on Dichroism (e): Dichroism (e):

pink.

Help on Dichroism (w): Dichroism (w):

pale pink.

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.064 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.1 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2082,KPDmeas= 0.2166,KC= 0.2314
Ncalc = 1.63 - 1.66

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.577-1.607, w=1.579-1.611, bire=0.0020-0.0040.

Calculated Properties of Sugilite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.71 gm/cc
note: Specific Gravity of Sugilite =2.74 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PESugilite = 5.06 barns/electron
U=PESugilite x relectron= 13.69 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 43.31 (Gamma Ray American Petroleum Institute Units)
Concentration of Sugilite per GRapi unit = 2.31 (%)

Estimated Radioactivity from Sugilite - barely detectable

Sugilite Classification

Help on Dana Class: Dana Class:

63.02.01a.09 (63)Cyclosilicate Condensed Rings

(63.02)6-membered rings

(63.02.01a)Milarite - Osumilite group (Milarite - Osumilite subgroup)

63.02.01a.01 Brannockite KSn2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.02 Chayesite K(Mg,Fe)4Fe(Si12O30) P 6/mcc 6/m 2/m 2/m

63.02.01a.03 Darapiosite KNa2Zr[Li(Mn,Zr)2Si12O30] P 6/mcc 6/m 2/m 2/m

63.02.01a.04 Eifelite KNa3Mg4Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.05 Merrihueite (K,Na)2(Fe,Mg)5Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.06 Osumilite-(Fe) (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.07 Osumilite-(Mg) (K,Na)(Mg,Fe)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.08 Poudretteite KNa2B3Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.09 Sugilite KNa2(Fe,Mn,Al)2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.10 Yagiite (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 P 6/mmc 6/m 2/m 2/m

63.02.01a.11 Dusmatovite K(K,Na,[])(Mn,Y,Zr)2(Zn,Li)3Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.12 Milarite K2Ca4Al2Be4Si24O60•(H2O) P 6/mcc 6/m 2/m 2/m

63.02.01a.13 Sogdianite (K,Na)2(Li,Fe,Al)3ZrSi12O30 P 6/mmm 6/m 2/m 2/m

63.02.01a.14 Roedderite (Na,K)2(Mg,Fe)5Si12O30 P 63/mmc 6/m 2/m 2/m

63.02.01a.15 Berezanskite! KLi3Ti2Si12O30 P 6/mcc 6/m 2/m 2/m

63.02.01a.16 Shibkovite! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) P 6/mcc 6/m 2/m 2/m

63.02.01a.17 Trattnerite! (Fe,Mg)2(Mg,Fe)3(Si12O30) P 6/mcc 6/m 2/m 2/m

63.02.01a.18 Almarudite! K([],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] P 6/mcc 6/m 2/m 2/m

63.02.01a.19 Oftedalite! (Sc,Ca)2KBe3Si12O30 P 6/mmc 6/m 2/m 2/m

63.02.01a.20 Klochite ([]1Na1)KFe2Zn3[Si12O30] P 6/mcc 6/m 2/m 2/m

63.02.01a.21 Friedrichbeckeite! K([],Na)Mg2(Be2Mg)Si12O30 P 6/mcc 6/m 2/m 2/m

Help on Strunz Class: Strunz Class:

09.CM.05 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CM -[Si6O18]12- 6-membered double rings (sechser-Doppelringe)

09.CM.05 Brannockite KSn2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Armenite BaCa2Al6Si9O30•2(H2O) Pnc2 mm2

09.CM.05 Berezanskite! KLi3Ti2Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Dusmatovite K(K,Na,[])(Mn,Y,Zr)2(Zn,Li)3Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Chayesite K(Mg,Fe)4Fe(Si12O30) P 6/mcc 6/m 2/m 2/m

09.CM.05 Shibkovite! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) P 6/mcc 6/m 2/m 2/m

09.CM.05 Eifelite KNa3Mg4Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Darapiosite KNa2Zr[Li(Mn,Zr)2Si12O30] P 6/mcc 6/m 2/m 2/m

09.CM.05 Merrihueite (K,Na)2(Fe,Mg)5Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Roedderite (Na,K)2(Mg,Fe)5Si12O30 P 63/mmc 6/m 2/m 2/m

09.CM.05 Milarite K2Ca4Al2Be4Si24O60•(H2O) P 6/mcc 6/m 2/m 2/m

09.CM.05 Osumilite-(Fe) (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Osumilite-(Mg) (K,Na)(Mg,Fe)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Poudretteite KNa2B3Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Sugilite KNa2(Fe,Mn,Al)2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

09.CM.05 Sogdianite (K,Na)2(Li,Fe,Al)3ZrSi12O30 P 6/mmm 6/m 2/m 2/m

09.CM.05 Oftedalite! (Sc,Ca)2KBe3Si12O30 P 6/mmc 6/m 2/m 2/m

09.CM.05 Yagiite (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 P 6/mmc 6/m 2/m 2/m

09.CM.05 Trattnerite! (Fe,Mg)2(Mg,Fe)3(Si12O30) P 6/mcc 6/m 2/m 2/m

09.CM.05 Almarudite! K([],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] P 6/mcc 6/m 2/m 2/m

Other Sugilite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Sugilite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - CalTech Mineral Spectroscopy
7 - EUROmin Project
8 - Ecole des Mines de Paris
9 - GeoScienceWorld
10 - Google Images
11 - Google Scholar
12 - Handbook of Mineralogy (MinSocAm)
13 - Handbook of Mineralogy (UofA)
14 - MinDAT
15 - Mineralienatlas (Deutsch)
16 - Online Mineral Museum
17 - QUT Mineral Atlas
18 - Ruff.Info
19 - Tradeshop.com - The Rainbow of Gems
20 - WWW-MINCRYST

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Print or Cut-and-Paste your Sugilite Specimen Label here :

Sugilite

KNa2(Fe+++,Mn+++,Al)2Li3Si12O30
Dana No: 63.02.01a.09 Strunz No: 09.CM.05
Locality:

Notes: