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INVESTIGATIONS

 

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

Reference

Bayldonite

1.95

1.99

0.04

0.04

4.35

4.35

 

 

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Bayldonite

1.95

1.99

0.04

0.04

4.35

4.35

 

 

 

 

 

 

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

Bayldonite

1.95

1.99

0.04

0.04

4.35

4.35

1.950

1.950

1.970

1.970

1.990

1.990

Gemmological Tables, Ulrich Henn, 2004 

Bayldonite

1.95

1.99

0.04

0.04

5.5

5.5

 

 

 

 

 

 

http://www.gemmology.be 

Bayldonite

1.95

1.99

0.04

0.04

5.5

5.5

1.950

1.950

1.970

1.970

1.990

1.990

http://www.geminterest.com 

Bayldonite

1.95

1.99

0.04

0.04

5.5

5.5

1.950

1.950

1.970

1.970

1.990

1.990

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Bayldonite

1.95

1.99

0.02

0.02

4.35

4.35

 

 

 

 

 

 

Gems, R Webster, 5th edition 1994 

Bayldonite

1.95

1.99

0.04

0.04

5.24

5.65

 

 

 

 

 

 

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

Bayldonite

1.95

1.99

0.04

0.04

5.4

5.5

 

 

 

 

 

 

Gemology Tools Professional 2010

Bayldonite

1.95

1.99

0.04

0.04

5.25

5.65

 

 

 

 

 

 

Gemmo.eu 2014

Bayldonite

1.97

1.97

 

 

 

 

 

 

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA (%)