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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

Cancrinite

1.493

1.499

0.006

0.006

2.42

2.44

light to medium blue

Kagssortoq Fjord, Greenland

 

 

 

 

 

absorption from 650nm up, from 440nm down

dark red to purple

dark violet

Gems & Gemology 1993 summer p131

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Cancrinite

1.488

1.527

0.02

0.029

2.42

2.51

1.488

1.505

1.490

1.527

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

Cancrinite

1.491

1.524

0.024

0.029

2.42

2.5

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Cancrinite

1.491

1.524

0.022

0.022

2.42

2.5

1.491

1.502

1.515

1.524

Gems, R Webster, 5th edition 1994 

Cancrinite

1.495

1.528

0.022

0.022

2.42

2.51

 

 

 

 

http://www.gemmology.be 

Cancrinite

1.495

1.528

0.022

0.022

2.42

2.51

1.495

1.503

1.507

1.528

http://www.geminterest.com 

Cancrinite

1.495

1.528

0.022

0.022

2.42

2.51

1.495

1.503

1.507

1.528

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Cancrinite

1.495

1.529

0.008

0.022

2.42

2.51

1.495

1.503

1.507

1.529

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

Cancrinite

1.498

1.524

0.026

0.026

2.5

2.5

1.498

1.498

1.524

1.524

Gemmological Tables, Ulrich Henn, 2004 

Cancrinite

1.51

1.51

 

 

2.42

2.5

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Cancriniet

Cancrinite Hill, KuglianyDungannon Township, Bancroft District

Hastings County

Ontario

Canada

www.mindat.org

 

CHEMICAL DATA