I used to use a very high tech one for rock ID. It had tons of filters.

Suggest using sun glasses - rotate the eye or the scope. (scope has to have a
driven lamp not a sun driven source.)

Perhaps - pressing with a sharp tip under the scope might see a shatter.

Martin
Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH & Endowment Member
NRA Second Amendment Task Force Charter Founder



Harold and Susan Vordos wrote:
"Martin H. Eastburn" wrote in message
...

Harold -

If you have one - try a polarizing type filter - as xtals have axis.

Might show up.

Martin


Sadly, the only microscope I have isn't proper for such use, and I have no
filters for it, anyway. Sure would be interesting to solve the
riddle----these parts should have rusted long ago.

Harold



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