Maine coast plasma jasper is not a native stone. It was carried here by the continental glaciers that covered Maine with 10,000 feet of ice a mere 14,000 years ago. When the ice melted, it left behind on parts of the Maine coast this greenish plasma jasper. The stone is many shades of green to grey, with white flecks and an ‘other worldly’ plasma pattern, similar to a space nebula as seen through a powerful telescope. The jasper is hard and fracture resistant. It polishes, but not easily. It has a waxy texture which is key to identification. It shows a conchoidal fracture. I don’t know the bedrock source of this material except that it is north of here in Maine or Canada. Rock #4337 : Click to enlarge Rock #4338 : Click to enlarge Rock #4367 : Click to enlarge