I am currently working through the IGS “Pro” course, and have a complete set of equipment ; 10x loupe, microscope, refractometer, spectroscope, polariscope, dichroscope, Ruby& Chelsea filters, UV lamps long& short wave, etc.
What would really like to have now is a RELIABLY SOURCED, COMPLETE, TRUSTWORTHY set of stones (i.e. of known species, and exhibiting all the phenomena I need to examine in the coursework) I could use in conjunction with the course.
I have, of course, bought a few stones from places like ebay, but (no surprises here) some of them do not appear to be genuine, and others are not crystallized well enough to be useful.
Looking around on the 'net, even the GIA store, I have not seen any offerings of this sort.
Anyone know of a source for such a set?