Someone had gathered a lot of pebbles in a large pile. I have bowls with stones from various places, I cant help gather stones when I'm at the beach or in the mountains. I didn't take any of these they sort of belong in the pile. on black larger Porphyry is an igneous rock. It contains sprinkle cereal and seen mostly dark with light speckles, diamond porphyry lead blocks, which reveals that the glacier came from Norway, specifically the Oslo area. Granite is a common group of igneous rocks...
