chalcedony comes in a variety of colors. After looking through my book, I saw it is also a jasper. This I did not know. & you're right that is a pretty piece.
...thank you guys...good idea old digger! Don't know if I'll cut it though because it actually "stands up" on it's own like a kind of dish, pretty unusual, should have taken a pic like that with some arrowheads or stones in it, maybe later.
Your welcome kat....From experience I cleaned a piece of calcite crystal with hydrochloric acid 23% and it bubbled & fizzed and really cleaned it good, how ever it left a shiny sheen which is far from its natural appearance.. The crystals all are a dirty grey color when found. The larger piece is left alone as it has 6 snail fossils in it. Pictures show both pieces natural & cleaned and the second picture of the fossils....
Those are nice finds you have there Cariboo, looks like it really did clean yours good! Don't know if I'll be brave enough to try the same thing, might just stick with good old soap & water since mine seems to only be dirt, but thank you for telling me that!