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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

hanksite

1.469

1.481

 

 

2.58

2.58

 

 

5.06 and 8.91 ct

 

 

 

 

 

moderate greenish yellow

weak greenish yellow

Gems & Gemology 2010 Spring, p60

 

TABLES

Stone

RI min

RI max

Biref min

Biref max

Dens min

Dens max

ne min

ne max

no min

no max

Reference

hanksite

1.46

1.482

0.019

0.021

2.55

2.6

 

 

 

 

Gemmo.eu 2013

 

CAUSE OF COLOUR

 

MINERAL INCLUSIONS

Inclusion

Stone

Reference

gaylussite

hanksite

Gems & Gemology 2010 Spring, p61

 

LOCALITIES

STONE

LOCALITIES

REFERENCE

hanksite

Searles Lake, near Trona

San Bernardino County

California

USA

Gems & Gemology 2010 spring p 61

 

CHEMICAL DATA (%)