Hi.. I picked up this specimen from an old collection an unfortunately it had no label with it.. Been doing some research but could not find anything similar to it. If anyone out there can help with ID and local, it would be greatly appreciated.. thanks.. Teresa :-S
I can say that the clear xls are probably quartz & the pinkish-white ones are probably calcite or a similar carbonate; however, the black blades, bcs there is NO locality, could be ANYTHING. I'm afraid, even taking Jose's advice, that without someone performing some chem tests, those will remain a mystery. I would also want to know what the small white needles, amongst the calcite(?) xls are; they COULD help target a locality, which would key what the black xls are.
Here's another test you might try, if you can obtain a short wave UV; see if the calcites fluoresce, &, what color they do.