This one is a chunk of serpentine from the coast range of California, in Clear Creek ORV Area(awesome place to go rock hunting!!) When it is dry it is a varied sage green, with a soapstone sort of greasy texture. When it is wet with a little rain, some of the greens turn blue. Serpentine comes from very, very deep within the earth, where it was formed. I loved that little red spot, I think it is some sort of scale bug attached to the rock, hibernating(?)
Clockwise from upper left: back obsidian from China Hat Butte, East Fort Rock ORV, near Bend, OR/ chunk of basalt from home, serpentine from same as above, quartzy type from Tillamook State Forest, OR/granite with black mica flakes from Lake Wenatchee, east side of Cascades, WA/rosy-milky-quartzy from Tillamook State Forest/another quartz-looking pice from Tillamook State Forest/white quarts from Lake Wenatchee.