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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

Cassiterite

2.003

2.101

0.098

0.098

6.95

6.95

black (opaque)

Sakangyi, Mogok, Birma

 

 

 

 

 

 

inert

inert

The Australian Gemmologist 2005 22, p303-309

Cassiterite

 

 

 

 

6.98

6.98

orange

Sri Lanka

2.76ct

 

 

 

 

 

 

 

Gemmologie, Zeitschrift der Deutschen Gemmologischen Gesellschaft 2000 Mar, p1

Cassiterite

 

 

 

 

7

7

black

 

2.03ct, semitranslucent

 

 

 

 

 

inert

inert

Gems & Gemology 2012 Spring, p63

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

Cassiterite

1.98

2.12

0.094

0.102

6.8

7.05

 

 

 

 

Gemmo.eu 2013

Cassiterite

1.99

2.106

0.096

0.098

6.7

7.1

2.097

2.106

1.990

2.006

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

Cassiterite

1.996

2.092

0.096

0.1

6.87

7.03

2.092

2.111

1.996

2.006

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

Cassiterite

1.996

2.101

0.094

0.098

6.87

7.03

2.090

2.101

1.996

2.003

Tabellen zur Edelstein-Bestimmung, Pschichholz FGA, 1975 

Cassiterite

1.997

2.106

0.096

0.098

6.87

7.03

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Cassiterite

1.997

2.098

0.096

0.097

6.87

7.03

2.093

2.098

1.997

2.001

Gemmological Tables, Ulrich Henn, 2004 

Cassiterite

1.997

2.101

0.096

0.098

6.7

7.12

2.093

2.101

1.997

2.006

http://www.geminterest.com 

Cassiterite synthetic

1.997

2.093

0.098

0.098

6.8

7.1

 

 

 

 

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Cassiterite synthetic

1.997

2.093

0.096

0.096

6.8

7.1

 

 

 

 

Bestimmungstabellen für Edelsteine, Birgit Günther, 1981 

Cassiterite synthetic

1.997

2.093

0.096

0.096

6.8

7.1

 

 

 

 

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

Synthetic Cassiterite

2

2.105

0.094

0.102

6.8

7.05

 

 

 

 

Gemmo.eu 2013

Cassiterite

2.001

2.101

0.098

0.098

6.8

7

 

 

 

 

John Sinkakas, Gemstone and mineral data book,1972 

Cassiterite

2.006

2.101

0.096

0.098

6.7

7.1

 

 

 

 

http://www.gemmology.be 

Cassiterite

2.006

2.101

0.098

0.098

6.7

7.1

2.097

2.101

2.006

2.006

Joel Arem, Color Encyclopedia of Gemstones, 1987 

Cassiterite

2.03

2.101

0.098

0.098

6.8

7

 

 

 

 

Gems, R Webster, 5th edition 1994 

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

Inclusion

Stone

Reference

tourmaline

Cassiterite

Gems & Gemology 2002 summer, p176

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

Cassiterite

Viloco Mine (Araca mine)

Loayza Province

La Paz Department

Bolivia

Gems & Gemology 2002 Summer, p175-176

Cassiterite

Krupka (Graupen), Teplice (Teplitz)

Krusne Hory, Severocesky Kraj

Bohemia

Czech Republic

Zeitschrift der Deutschen Gemmologischen Gesellschaft, 1992, Dec, p166

Cassiterite

Sakangyi

Mogok

Mandalay

Myanmar

The Australian Gemmologist (2005) 22, p308

Cassiterite

 

 

Erongo Region

Namibia

Namibia, Zauberwelt edler Steine und Kristalle, Steffen Jahn e.a., 2001

Cassiterite

 

 

 

Spain

Joel Arem, Color Encyclopedia of Gemstones, 1987

 

CHEMICAL DATA