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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

Poudretteite

1.511

1.532

0.016

0.021

2.511

2.527

purple-pink, colourless, pale-pink

Mont Saint-Hilaire (Canada) and Mogok (Birma)

transparent

1.532

1.532

1.511

1.516

faint broad band centered at 530nm

inert

inert

Gems & Gemology 2003 spring, p24-31

Poudretteite

1.515

1.535

 

 

2.5

2.5

 

 

 

 

 

 

 

 

very weak yellow

 

Gems & Gemology 2006 winter, p 265

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Poudretteite

1.51

1.523

0.021

0.021

2.51

2.53

1.523

1.523

1.511

1.511

Gemmological Tables, Ulrich Henn, 2004 

Poudretteite

1.51

1.532

0.016

0.021

2.5

2.55

 

 

 

 

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

Poudretteite

1.511

1.535

0.016

0.021

2.5

2.53

1.535

1.535

1.511

1.511

http://www.geminterest.com 

Poudretteite

1.511

1.532

0.016

0.021

2.51

2.53

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 2008 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Poudretteite

 

Mogok

Mandalay

Myanmar

Gems & Gemology 2003 spring, p24-31

Poudretteite

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry)

Mont Saint-Hilaire, Rouville County

Quebec

Canada

Gems & Gemology 2003 spring, p24-31

 

CHEMICAL DATA (%)