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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

Suolunite

1.61

1.622

0.012

0.012

2.67

2.67

light blue

Canada

0.84ct, streaky interference pattern under crossed polarizing filters

1.610

1.610

1.619

1.619

1.622

1.622

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2015 Dez, p45

 

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

Suolunite

1.61

1.623

0.011

0.013

2.63

2.68

1.610

1.612

1.620

1.620

1.623

1.623

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

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA (%)