Elbaite Mineral Data (original) (raw)

General Elbaite Information

Help on Chemical Formula: Chemical Formula:

Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Help on Composition: Composition:

Molecular Weight = 916.68 gm

Sodium 2.51 % Na 3.38 % Na2O

Lithium 1.89 % Li 4.07 % Li2O

Aluminum 19.13 % Al 36.15 % Al2O3

Silicon 18.38 % Si 39.33 % SiO2

Boron 3.54 % B 11.39 % B2O3

Hydrogen 0.44 % H 3.93 % H2O

Oxygen 54.11 % O

______ ______

100.00 % 98.25 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

NaLi2.5Al6.5(BO3)3Si6O18(OH)4

Help on Environment: Environment:

Granitic pegmatites characterized by hydrothermal replacement.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1908 (Dana # Changed)

Help on Locality: Locality:

Island of Elba, Italy. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the locality.

Help on Name Pronunciation: Name Pronunciation:

Elbaite Say ELBAITE

Help on Synonym: Synonym:

Achroite - colorless

Elbaite - (61.3.1.6)

ICSD 9252

Indicolite - blue

PDF 49-1833

Rubellite - red or pink

Tsilaisite - Mn-bearing elbaite

Elbaite Image

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

Click Here for Larger Elbaite Image Elbaite Comments: Doubly terminated tri-color elbaite (tourmaline) with minor white clevelandite (albite). Location: Himalaya mine, San Diego County, California, USA.Scale: 3 x 1.5 cm. © Fabre Minerals

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

Click Here for Larger Elbaite Image Elbaite Comments: Gemmy-blue crystal of elbaite (Indicolite) tourmaline. Location: Morro Redondo Mine in Minas Gerais, Brazil.Scale: Crystal size 8.5 cm. © Kevin Ward

Elbaite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.44847

Help on Cell Dimensions: Cell Dimensions:

a = 15.838, c = 7.103, Z = 3; V = 1,543.03 Den(Calc)= 2.96

Help on Crystal System: Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 2.576(1), 2.961(0.85), 3.99(0.85),

Help on Forms: Forms:

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| | Forms:( 0 2 1) ( 1 0 1) ( 1 2 0) ( 1 0 0) ( 1 0 1) ( 0 2 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Click Here for Large Elbaite Structure Window Crystal Structure:

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| | Bosi F , Agrosi G , Lucchesi S , Melchiorre G , Scandale E , American Mineralogist , 90 (2005) p.1661-1668, Mn-tourmaline from island of Elba (Italy): Crystal chemistry., Sample: Elb2rim View Additional jPOWD Structure files for Elbaite [1] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [2] [20] [21] [22] [23] [24] [25] [3] [4] [5] [6] [7] [8] [9] | | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Elbaite

Help on Cleavage: Cleavage:

{1011} Indistinct

Help on Color: Color:

Blue, Colorless, Green, Yellow, White.

Help on Density: Density:

2.9 - 3.2, Average = 3.05

Help on Diaphaneity: Diaphaneity:

Transparent to translucent to opaque

Help on Fracture: Fracture:

Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.

Help on Habit: Habit:

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

Help on Habit: Habit:

Striated - Parallel lines on crystal surface or cleavage face.

Help on Hardness: Hardness:

7.5 - Garnet

Help on Luminescence: Luminescence:

Fluorescent, Short UV=weak blue white to blue.

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Elbaite

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

colorless.

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

colorless.

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.028 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2139,KPDmeas= 0.2075,KC= 0.2134
Ncalc = 1.62 - 1.68

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.615-1.632, w=1.635-1.65, bire=0.0180-0.0200.

Calculated Properties of Elbaite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.93 gm/cc
note: Specific Gravity of Elbaite =2.96 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Help on Photoelectric: Photoelectric:

PEElbaite = 1.38 barns/electron
U=PEElbaite x rElectron Density= 4.03 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Elbaite is Not Radioactive

Elbaite Classification

Help on Dana Class: Dana Class:

61.03d.01.08 (61)Cyclosilicate Six-Membered Rings

(61.03d)with borate groups (Lithian Tourmaline Subgroup)

(61.03d.01)Elbaite Subgroup

61.03d.01.07 Olenite! NaAl3Al6(BO3)3(Si6O18)(O,OH)4 R 3m 3m

61.03d.01.08 Elbaite! Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 R 3m 3m

Help on Strunz Class: Strunz Class:

09.CK.05 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CK -[Si6O18]12- 6-membered single rings, with insular complex anions

09.CK.05 Chromdravite! NaMg3(Cr,Fe)6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Feruvite! (Ca,Na)(Fe,Mg,Ti)3(Al,Mg,Fe)6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Dravite NaMg3Al6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Buergerite! NaFe3Al6(BO3)3Si6O21F R 3m 3m

09.CK.05 Foitite! []Na<0.5(Fe,Al)3Al6Si6O18(BO3)3(OH)4 R 3m 3m

09.CK.05 Liddicoatite! Ca(Li,Al)3Al6(BO3)3Si6O18(O,OH,F)4 R 3m 3m

09.CK.05 Elbaite Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Rossmanite! []LiAl2Al6(Si6O18)(BO3)3(OH)4 R 3m 3m

09.CK.05 Olenite! NaAl3Al6(BO3)3(Si6O18)(O,OH)4 R 3m 3m

09.CK.05 Povondraite! (Na,K)(Fe,Fe)3(Fe,Mg,Al)6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Schorl NaFe3Al6(BO3)3Si6O18(OH)4 R 3m 3m

09.CK.05 Uvite (Ca,Na)(Mg,Fe)3Al5Mg(BO3)3Si6O18(OH,F)4 R 3m 3m

09.CK.05 Vanadiumdravite! NaMg3V6(Si6O18)(BO3)3(OH)4 R 3m 3m

09.CK.05 Magnesiofoitite! [](Mg2Al)Al6(Si6O18)(BO3)3(OH)4 R 3m 3m

09.CK.05 Hydroxyuvite! CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH) R 3m 3m

09.CK.05 Schorl-(F)! NaFe3Al6Si6O18)(BO3)3(OH)3(F,OH) R 3m 3m

Other Elbaite Information

Help on References: References:

NAME( Duda&Rejl90) PHYS. PROP.(Dana8) OPTIC PROP.(Heinrich65)

Help on See Also: See Also:

Links to other databases for Elbaite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - CalTech Mineral Spectroscopy
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - HyperPhysics
13 - MinDAT
14 - Mineral and Gemstone Kingdom
15 - Mineralienatlas (Deutsch)
16 - Online Mineral Museum
17 - Philatelic Mineralogy
18 - QUT Mineral Atlas
19 - Ruff.Info
20 - Scandinavian mineral gallery
21 - WWW-MINCRYST

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Ask about Elbaite here :
Ask-A-Mineralogist from the Mineralogical Society of America
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Print or Cut-and-Paste your Elbaite Specimen Label here :

Elbaite

Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Dana No: 61.03d.01.08 Strunz No: 09.CK.05
Locality:

Notes: