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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

Phosphophyllite

1.595

1.616

0.021

0.021

3.16

3.16

green

Cerro de Potosi Mine, Potosi, Bolivia

5.12ct

 

 

 

 

 

 

 

inert

inert

GIA Gem Database  35481

 

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

Phosphophyllite

1.595

1.61

 

 

3.1

3.1

 

 

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

Phosphophyllite

1.595

1.621

0.021

0.022

3.08

3.13

1.595

1.599

 

 

1.616

1.621

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

Phosphophyllite

1.595

1.621

0.021

0.033

3.08

3.13

 

 

 

 

 

 

http://www.gemmology.be 

Phosphophyllite

1.595

1.616

0.02

0.021

3.1

 

 

 

 

 

 

 

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Phosphophyllite

1.595

1.621

0.021

0.033

3.08

3.13

1.595

1.599

1.614

1.616

1.616

1.621

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Phosphophyllite

1.595

1.621

0.021

0.033

3.08

3.13

1.595

1.599

1.614

1.617

1.616

1.621

http://www.geminterest.com 

Phosphophyllite

1.595

1.616

0.021

0.021

3.1

3.1

 

 

 

 

 

 

Gems, R Webster, 5th edition 1994 

Phosphophyllite

1.595

1.621

0.021

0.033

3.08

3.13

1.595

1.599

1.614

1.616

1.616

1.621

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

Phosphophyllite

1.597

1.621

0.022

0.023

3.1

3.1

1.597

1.599

1.615

1.616

1.620

1.621

Gemmological Tables, Ulrich Henn, 2004 

Phosphophyllite

1.599

1.621

0.021

0.023

3.07

3.09

 

 

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

 

CAUSE OF COLOUR

Stone

Colour

Cause of colour

Reference

Phosphophyllite

bluish green

Fe²+

Gems & Gemology Summer 1988

 

MINERAL INCLUSIONS

 

LOCALITIES

 

CHEMICAL DATA (%)