Gem glaucophane freeforms

I cabbed up some of our club's stash of gem glaucophane. This material is from near Paso Robles; I will soon cab up some of the Panoche Hills glaucophane and post it, so you can compare and contrast.

 

This is the material that was initially given to us as "dumerite' (which is, I believe, due to some confusion with dumortierite). The "diagnosis" has been changed to diabase, but I do not think that that is correct either -- diabase is not this pretty, and I've neverheard of it being used for cabbing material.

Done