Gemsdat
 

                Home            Gemstones

 

     

INVESTIGATIONS

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

Colour

Locality

Info

nx min

nx max

ny min

ny max

nz min

nz max

Spectrum

UVS

UVL

Reference

Albite

 

 

 

 

2.71

2.71

greenish blue

Kioo Hill, Eastern Province, Kenya

8.87 ct; cat's eye

 

 

 

 

 

 

 

inert

inert

GIA Gem Database  33117

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

nx min

 nx max

ny min

ny max

nz min

nz max

Referte

Albite

1.524

1.548

0.01

0.01

2.61

2.61

1.524

1.540

 

 

1.536

1.548

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Albite

1.525

1.542

0.011

0.011

2.6

2.6

 

 

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 2008 

Albite

1.525

1.541

0.011

0.011

2.57

2.69

1.525

1.531

 

 

1.536

1.541

Gemme, Dati per l'identificazione, P. De Stefano et al, 1993 

Albite

1.525

1.542

0.07

0.011

2.57

2.69

1.525

1.532

1.528

1.536

1.536

1.542

http://www.geminterest.com 

Albite

1.526

1.542

0.009

0.011

2.57

2.67

1.526

1.533

1.531

1.536

1.538

1.542

Tables of Gemstone Identification, Roger Dedeyn, Ivo Quintens, 2007 

Albite

1.527

1.538

0.011

0.011

2.57

2.69

1.527

1.527

1.531

1.531

1.538

1.538

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Albite

1.527

1.538

0.011

0.011

2.57

2.69

 

 

 

 

 

 

http://www.gemmology.be 

Albite

1.529

1.542

0.009

0.009

2.61

2.62

1.529

1.533

1.310

1.536

1.538

1.542

Gemmological Tables, Ulrich Henn, 2004 

Albite

1.54

1.54

0.011

0.011

2.6

2.63

 

 

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS