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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

Smithsonite

1.62

 

 

 

4.252

4.252

yellow-green

 

0.65ct

 

 

 

 

 

 

 

ACAM labo 

Smithsonite

 

 

 

 

4.35

4.35

yellowish green

79 mine, Chilito, Gila County, Arizona, USA

8.09ct, translucent

 

 

 

 

broad absorption below 455nm and above 655nm

inert

inert

GIA Gem Database  35512

Smithsonite

1.619

 

 

 

4.37

4.37

 

China

3.89ct

 

 

 

 

 

pink red

inert

http://www.spec4gem.info/index.php 2016

Smithsonite

1.62

 

 

 

4.38

4.38

pink

Mexico

1.23ct

 

 

 

 

 

inert

inert

ACAM labo  4391

Smithsonite

 

 

 

 

4.39

4.39

greenish blue

Kelly Mine, Magdalena District, Socorro County, Arizona, USA

9.11ct, translucent, cabochon

 

 

 

 

 

inert

inert

GIA Gem Database  35223

Smithsonite

1.619

 

 

 

4.39

4.39

yellow

Sardinia, Italy

11.79ct

 

 

 

 

 

inert

inert

ACAM Lab  2120

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Smithsonite

1.618

1.85

0.225

0.23

4.35

4.48

 

 

 

 

Gemmo.eu 

Smithsonite

1.621

1.849

0.228

0.228

4.1

4.65

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Smithsonite

1.621

1.849

0.277

0.278

4.3

4.45

1.621

1.621

1.848

1.849

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

Smithsonite

1.621

1.849

0.228

0.228

4.3

4.5

1.621

1.621

1.849

1.849

Gemmological Tables, Ulrich Henn, 2004 

Smithsonite

1.621

1.848

0.227

0.228

4.3

4.45

 

 

 

 

http://www.gemmology.be 

Smithsonite

1.621

1.849

0.228

0.228

4.3

4.3

 

 

 

 

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Smithsonite

1.621

1.848

0.227

0.227

4.3

4.45

1.621

1.621

1.848

1.848

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Smithsonite

1.621

1.849

0.227

0.228

4.3

4.5

1.621

1.622

1.848

1.849

http://www.geminterest.com 

Smithsonite

1.621

1.849

0.228

0.228

4.3

4.35

 

 

 

 

Gems, R Webster, 5th edition 1994 

Smithsonite

1.621

1.849

0.227

0.228

4.1

4.65

 

 

 

 

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

Smithsonite

1.621

1.849

0.225

0.228

4.3

4.45

 

 

 

 

Gemology Tools Professional 2010

 

CAUSE OF COLOUR

Stone

Colour

Cause of colour

Reference

Smithsonite

blue-green

Cu²+

Gems & Gemology Summer 1988

Smithsonite

pink

Co²+

Gems & Gemology Summer 1988

 

MINERAL INCLUSIONS

Inclusion

Stone

Reference

pyrolusite

Smithsonite

E.J. Gübelin and J.I. Koivula, Photoatlas of inclusions in Gemstones, volume 2 (2005)

 

LOCALITIES

 

CHEMICAL DATA (%)