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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

Eosphorite

1.64

1.668

0.028

0.028

3.06

3.06

brownish-pink

 

 

1.640

1.640

1.660

1.660

1.668

1.668

strong line at 410nm, moderate line at 490nm

 

 

Gems & Gemology 1970 Fall, p192-194

Eosphorite

1.64

1.67

0.03

0.03

3.02

3.02

yellowish brown

Brazil

0.76 ct, Mn/Fe = 3.4

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2013 62/1-2, Jun, p33

Eosphorite

1.64

1.667

0.027

0.027

3.12

3.12

orange

 

5.85 ct, 55,3% eosphorite - 40.5% childrenite

 

 

 

 

 

 

 

inert

inert

Gems & Gemology 2015 Fall, p314

Eosphorite

1.645

1.67

0.025

0.025

3.07

3.07

yellowish brown

Pakistan

0.14 ct, Mn/Fe = 1.6

 

 

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2013 62/1-2, Jun, p33

 

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

Eosphorite

1.628

1.68

0.028

0.035

3.05

3.08

1.628

1.645

1.648

1.673

1.657

1.680

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

Eosphorite

1.628

1.685

0.03

0.04

3.05

3.2

 

 

 

 

 

 

Gemmo.eu 2013

Eosphorite

1.629

1.68

0.028

0.035

3.05

3.08

1.629

1.645

 

 

1.658

1.680

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

Eosphorite

1.63

1.68

0.03

0.035

3.1

3.1

1.630

1.645

 

 

1.660

1.680

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Eosphorite

1.638

1.671

0.029

0.035

3.05

3.08

 

 

 

 

 

 

http://www.gemmology.be 

Eosphorite

1.638

1.671

0.029

0.035

3.05

3.08

1.638

1.639

1.660

1.664

1.667

1.671

http://www.geminterest.com 

Eosphorite

1.638

1.671

0.029

0.035

3.05

3.08

1.638

1.639

1.660

1.664

1.667

1.671

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Eosphorite

1.638

1.671

0.029

0.035

3.05

3.08

 

 

 

 

 

 

Gemology Tools Professional 2010

Eosphorite

1.64

1.68

0.028

0.035

3.06

3.08

 

 

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Eosphorite

1.64

1.68

0.03

0.035

3.06

3.1

1.630

1.640

 

 

1.660

1.680

Gems, R Webster, 5th edition 1994 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Eosphorite

 

 

Minas Gerais

Brazil

Joel Arem, Color Encyclopedia of Gemstones, 1987







 

CHEMICAL DATA