No it is not man made
No, it is an organically produced rock but it is not man made.
No it is not man made
Obsidian is an igneous rock. Rocks are not man-made. Man-made substances that are similar to rock include concrete and cement.
There are man made imitations but real granite is a natural rock.
Marble is a nature made metapmorphic rock!
Rock candy was first made in the 1700's by a German man.
no
A rock is natural, the handaxe was the first man-made tool.
no
Marble is a nature made metapmorphic rock!
God invented rock. Rock isn't man made. It is a part of nature.
Bricks and concrete are man-made rocks.