Sure, a boulder is a large rock.
It can be both
Obsidian
The volcanic rock can be classified as basalt. Basalt is a fine-grained igneous rock that forms from the solidification of lava flows. The smooth texture and small holes, known as vesicles, are characteristic features of basalt.
The Taj Mahal is made out of smooth, white marble which is a metamorphic rock.
Deep Purple in Rock was created on 1970-06-03.
A smooth, black rock is likely to be basalt. Basalt is an extrusive igneous rock that is commonly dark in color and has a fine-grained texture, giving it a smooth appearance.
no, deep purple is not in the ock hall of fame. srry. :(
some from weathering
obsidian
Yes, it is.
Sure, a boulder is a large rock.
Blue and Purple
the streak is purple
Pavement or smooth rock runoff affects waterways because they create more impervious surfaces.
If I don't know, then who does? Einstien
Shale