The following is an erythrite (red) with azurite (blue). Field of view is about 3 mm.

The following is erythrite from Cobalt Ontario. Field of view is about 1.5 mm

Thanks for your help!!! I think I need to find ways still to reduce vibration. Am thinking of laying a stone slab on the desk under the assumption that making it heavier mean household vibrations will have a smaller effect.
Bob