Does anyone on Orchid know how one might examine clay to detect
miscroscopic diamonds? What kind of microscope would help? Or
Peter, I don’t know if Canada has something like the USGS (United
States Geological Service), but I suspect they might. They will have
maps, background info of what the characteristics are in the field
for a particular type of stone and samples of the stone from the
field, usually for free or very low cost.
There are small, hand-held, battery operated, lighted microscopes,
ranging from 30X to 50X. They are sold in places like Radio Shack and
Edmund’s Scientific. Any over 50X definitely requires a table to
view, because hand-held devices will shake too much for you to focus.
Think of 50X binoculars. A 30X hand microscope costs under $10. It
should be more than adequate to pick up the diamondiferous crystals.
Here in Wyoming, we have diamondiferous ore. The last I heard they
had recovered around a dozen diamonds 1 ct. or over from their core
drillings (30 ft. deep) that were of gem quality. The largest was 5
cts. faceted in I color. A small sample from their core drillings,
about 2" x 3" cost me.25 cents U.S., about 15 years ago. Very small
diamonds are evident on the surface of the sample, and with a 30X
monocular you can see the diamond crystal shape.