a friend of mine found these up in the hills of oregon. they say from what I've read that obsidian cannot be this red maybe a orange brownish mahogany color but this is not slag its bright red has some black in it some dark purples. if not obsidian and not slag then what is it???? the darker piece is small maybe 2 inches the other two are the size of two adult males fist. somebody please tell me what they are.