Gemsdat
 

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INVESTIGATIONS

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

Colour

Location

Info

ne min

ne max

no min

no max

Spectrum

UVS

UVL

Reference

Boleite

2

 

 

 

5,06

5,06

dark blue

 

0,77 ct

 

 

 

 

 

 

 

https://www.dgemg.com/images/PDF-Newsletter/Newsletter2_2025 2025 2

 

TABLES

Stone

RI min

RI max

Dens min

Dens max

Reference

Boleite

2.03

2.05

5.05

5.05

http://www.geminterest.com 

Boleite

2.03

2.05

5.05

5.05

http://www.gemmology.be 

Boleite

2.03

2.05

5.05

5.05

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Boleite

2.03

2.05

5.05

5.05

Gems, R Webster, 5th edition 1994 

Boleite

2.03

2.05

4.8

5.1

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

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA