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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

Scolecite

1.507

1.523

0.007

0.007

2.21

2.29

1.507

1.513

1.516

1.520

1.517

1.523

http://www.geminterest.com 

Scolecite

1.507

1.525

0.07

0.012

2.2

2.3

1.507

1.514

 

 

1.518

1.525

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

Scolecite

1.507

1.523

0.007

0.007

2.21

2.29

1.507

1.513

1.516

1.520

1.517

1.523

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Scolecite

1.507

1.523

0.007

0.007

2.21

2.29

1.507

1.513

1.516

1.520

1.517

1.523

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

Scolecite

1.509

1.525

0.01

0.012

2.2

2.3

1.509

1.514

 

 

1.519

1.525

Bestimmungstabellen für Edelsteine, Birgit Günther, 2008 

Scolecite

1.512

1.523

0.011

0.011

2.2

2.23

1.512

1.512

1.518

1.518

1.523

1.523

Gemmological Tables, Ulrich Henn, 2004 

Scolecite

1.512

1.523

0.011

0.011

2.21

2.21

 

 

 

 

 

 

Gems, R Webster, 5th edition 1994 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA (%)