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INVESTIGATIONS

Stone

RI min

RI max

Dens min

Dens max

Colour

Location

Info

Spectrum

UVS

UVL

Reference

shungite

1.62

1.62

1.86

1.86

 

 

 

 

 

 

The Journal of Gemmology 2015 Vol 38, No 8, p675-676

 

TABLES

Stone

RI min

RI max

Dens min

Dens max

Reference

Shungite

 

 

1.73

1.9

Gemmo.eu 2016

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA