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

Proustite

5.68

5.68

dark red

Chanarcillo, Atacama region, Chili

12.07ct, transparent

broad absorption below 590nm

inert

inert

GIA Gem Database  35469

Proustite

red

Chanarcillo, Atacama region, Chili

43.21ct

The Journal of Gemmology 2020 Vol 37 (2), p141

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Proustite

2.7

3

0.3

0.3

5.57

5.64

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Proustite

2.7

3

0.3

0.3

5.57

5.64

Gems, R Webster, 5th edition 1994 

Proustite

2.79

3.09

0.3

0.3

5.56

5.64

John Sinkakas, Gemstone and mineral data book,1972 

Proustite

2.79

3.08

0.296

0.296

5.6

5.7

2.790

2.790

3.080

3.080

Michael O'Donoghue, Gems: Their Sources, Descriptions and Identification (2006),  873pp 

Proustite

2.79

3.089

0.294

0.298

5.5

5.6

Gemmo.eu 2021

Proustite

2.792

3.088

0.296

0.296

5.51

5.64

2.792

2.792

3.088

3.088

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

Proustite

2.792

3.087

0.295

0.295

5.51

5.64

2.792

2.792

3.087

3.087

Gemmological Tables, Ulrich Henn, 2004 

Proustite

2.792

3.088

0.03

0.03

5.57

5.64

http://www.gemmology.be 

Proustite

2.792

3.088

0.296

0.296

0

0

2.792

2.792

3.088

3.088

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Proustite

2.792

3.088

0.296

0.296

5.6

5.7

2.792

2.792

3.088

3.088

http://www.geminterest.com 

Proustite

2.792

3.088

0.295

0.296

5.51

5.64

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

Proustite

2.881

3.084

0.203

0.203

5.51

5.64

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981