Thread: Stone Identification

Originally Posted by dylandog

I vote slate too. But based solely on the color of the slurry.

I have a natural combo on which the "blue" side is black, or almost black. It is very obviously a natural, with a wavy and strikingly well-defined seam. I thought for a while that coticule must occasionally be found adjacent to something other than BBW, since mine was so damn black. But lapping it yielded the tell-tale blueberry slurry.

I was actually talking only about the color of the slurry. I see now that I expressed myself ambiguously, so I edited my previous post for more clarity.

Here's a an example of a spessartine garnet. Coticules are loaded with such crystals, ranging between 5 and 15 microns.