Mexican Chrysocolla Rough
Our Mexican Chrysocolla is from Sonora and may include a very little reddish cuprite and/or black tenorite. This material is hard enough to polish withouit stabilizing. Chrysocolla is a secondary copper mineral with a blue-green color, that some people mistake for turquoise. It generally takes a reasonably good polish with tin oxide or diamond, followed with green rouge (Zam is a brand name for green rouge). Mohs hardness 2.5 to 3.5.