White Marble

Marble is metamorphosed limestone or dolomite. Both limestone and
dolomite have a large concentration of calcium carbonate (CaCO3).
Marble has many different sizes of crystals. Marble has many color variances
due to the impurities present at formation. Some of the different colors of marble
are white, red, black, mottled and banded, gray, pink, and green.
Marble is much harder than its parent rock. This allows it to take a polish
which makes it a good material for use as a building material,
making sink tops, bathtubs, and a carving stone for artists.
Today, headstones are made from marble and granite because
both of these rocks weather very slowly and carve well with sharp edges.