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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

Apophyllite

1.531

1.534

0.003

0.003

2.38

2.38

Colourless

Poona, India

1.534

1.534

1.531

1.531

 

 

 

Gems & Gemology 2004 winter, p323

Apophyllite

1.533

1.538

0.005

0.005

2.36

2.36

colourless

 

0.6ct

 

 

 

 

 

 

 

ACAM labo 

Apophyllite

1.53

1.533

0.003

0.003

2.36

2.36

colourless

 

0.72 ct

 

 

 

 

 

 

 

ACAM Lab  Nr 1025

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Apophyllite

1.528

1.541

0.001

0.003

2.3

2.5

 

 

 

 

Gemmo.eu 

Apophyllite

1.53

1.54

0

0.002

2.3

2.5

1.530

1.540

1.530

1.540

http://www.geminterest.com 

Apophyllite

1.53

1.54

0

0.001

2.3

2.5

1.530

1.540

1.530

1.540

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Apophyllite

1.53

1.54

0.001

0.005

2.3

2.5

 

 

 

 

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

Apophyllite

1.531

1.538

0.002

0.003

2.33

2.44

1.533

1.538

1.531

1.536

Gemmological Tables, Ulrich Henn, 2004 

Apophyllite

1.532

1.536

0

0.003

2.39

2.41

 

 

 

 

Gemology Tools Professional 2010

Apophyllite

1.535

1.537

0.002

0.002

2.29

2.5

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

Apophyllite

1.535

1.543

0.001

0.002

2.3

2.5

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Apophyllite

1.535

1.543

0.001

0.002

2.3

2.5

1.537

1.543

1.535

1.542

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

Apophyllite

1.535

1.537

0.001

0.001

2.3

2.5

 

 

 

 

http://www.gemmology.be 

Apophyllite

1.535

1.537

0.002

0.002

2.25

2.5

 

 

 

 

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Apophyllite

1.535

1.537

0.002

0.002

2.3

2.5

 

 

 

 

Gems, R Webster, 5th edition 1994 

 

CAUSE OF COLOUR

stone

colour

cause of colour

reference

Apophyllite

green

V4+ in distorted octahedral coordination

Gems & Gemology Summer 1988

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Apophyllite

 

Pune (Poonah)

Maharashtra

India

Joel Arem, Color Encyclopedia of Gemstones, 1987