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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

Adamite

1.71

1.759

0.049

0.049

 

 

rose

Mapimi, Mexico

 

1.710

1.710

1.735

1.735

1.759

1.759

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987  p 38

Adamite

1.71

1.758

0.048

0.048

 

 

violet

Mapimi, Mexico

 

1.710

1.710

1.735

1.735

1.758

1.758

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987  p 38

Adamite

1.712

1.76

0.048

0.048

 

 

reddish

Mapimi, Mexico

 

1.712

1.712

1.736

1.736

1.760

1.760

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987  p 38

Adamite

1.721

1.75

0.029

0.029

4.4

4.4

green

 

0.87ct, translucent

 

 

 

 

 

 

 

inert

weak green

Gems & Gemology 2016 Spring, p 68

Adamite

1.722

1.763

0.041

0.041

 

 

green

Mapimi, Mexico

 

1.722

1.722

1.742

1.742

1.763

1.763

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987  p 38

Adamite

1.742

1.773

0.031

0.031

 

 

 

Tsumeb, Namibia

Cu-bearing

1.742

1.742

1.768

1.768

1.773

1.773

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987  p 38

 

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

Adamite

1.705

1.775

0.03

0.055

4.3

4.5

 

 

 

 

 

 

Gemmo.eu 2013

Adamite

1.708

1.773

0.031

0.05

4.32

4.68

1.708

1.742

1.734

1.742

1.758

1.773

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Adamite

1.708

1.773

0.031

0.05

4.32

4.68

1.708

1.742

 

 

1.758

1.773

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

Adamite

1.708

1.773

0.031

0.05

4.3

4.5

1.708

1.742

1.734

1.768

1.745

1.773

Gemmological Tables, Ulrich Henn, 2004 

Adamite

1.708

1.773

0.031

0.05

4.32

4.68

 

 

 

 

 

 

http://www.gemmology.be 

Adamite

1.708

1.773

0.031

0.05

4.3

4.7

1.708

1.742

1.734

1.768

1.758

1.773

http://www.geminterest.com 

Adamite

1.708

1.76

0.031

0.05

4.3

4.68

1.708

1.742

 

 

1.758

1.773

Bestimmungstabellen für Edelsteine, Birgit Günther, 2008 

Adamite

1.708

1.773

0.031

0.05

4.32

4.68

1.708

1.742

1.734

1.768

1.758

1.773

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

Adamite

1.71

1.773

0.048

0.049

4.68

4.68

1.710

1.712

1.735

1.736

1.758

1.760

Gems, R Webster, 5th edition 1994 

Adamite

1.71

1.768

0.031

0.05

4.32

4.68

 

 

 

 

 

 

Gemology Tools Professional 2010

 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS