Inclusions in Lead-Glass Filled Rubies

Lead-glass filled ruby

In this picture you can clearly see the filler standing out. This is due to the

 difference in the R.I. between the filler and the ruby. The patches are

 easiest to see when the stone is examined in a reflective light and focusing

 on the stone surface. Polishing lines are also clearly visible.

 

 

Inclusions in lead-glass filled ruby

Two gas bubbles clearly visible in a lead-glass filled ruby. This is a fairly

 common inclusion in these stones.

 

 

Inclusions in glass-filled rubies

The lead-glass filling stands out in high relief in this lead-glass filled ruby.

 

 

Inclusions found in lead-glass filled ruby

Many lead-glass filled rubies show interference colours when the stones

 are examined under a microscope. The colours are best seen using a

 fibre optic light but are also visible using dark field illumination.

 

 

Inclusions found in lead-glass filled ruby

The lead-glass filling stands out in high relief in this lead-glass filled ruby.

 

 

Inclusions found in lead-glass filled ruby

The lead-glass filling stands out in high relief in this lead-glass filled ruby.

 

 

Inclusions found in lead-glass filled ruby

The lead-glass filling stands out in high relief in this lead-glass filled ruby.