Sandstone
![Picture](/uploads/1/4/0/2/14021357/1953168.jpg?0)
It has been used to make statues. Sandstone is composed of very small grains of rock. It is a 6.5 to 7 on Mohs hardness scale.
Coal
![Picture](/uploads/1/4/0/2/14021357/7791294.jpg?1)
It is solid black. One of its uses is creating heat. Coal is largly made of carbon
http://geology.com/rocks/pictures/sandstone.jpg
http://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Coal_anthracite.jpg/220px-Coal_anthracite.jpg
http://en.wikipedia.org/wiki/Sandstone#Uses
http://www.ehow.com/info_8501824_characteristics-sandstone.html
http://www.mineralszone.com/stones/sandstone.html
http://www.publishyourarticles.net/knowledge-hub/geography/what-are-the-characteristics-of-coal.html
http://www.sciencekids.co.nz/sciencefacts/chemistry/coal.html
http://library.thinkquest.org/05aug/00461/images/sedimentary.jpg
http://facweb.bhc.edu/academics/science/harwoodr/geol101/labs/sediment/images/Sed06.jpg
http://www.oldearth.org/curriculum/geology/images/Sandstone.jpg
http://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Coal_anthracite.jpg/220px-Coal_anthracite.jpg
http://en.wikipedia.org/wiki/Sandstone#Uses
http://www.ehow.com/info_8501824_characteristics-sandstone.html
http://www.mineralszone.com/stones/sandstone.html
http://www.publishyourarticles.net/knowledge-hub/geography/what-are-the-characteristics-of-coal.html
http://www.sciencekids.co.nz/sciencefacts/chemistry/coal.html
http://library.thinkquest.org/05aug/00461/images/sedimentary.jpg
http://facweb.bhc.edu/academics/science/harwoodr/geol101/labs/sediment/images/Sed06.jpg
http://www.oldearth.org/curriculum/geology/images/Sandstone.jpg