what's the difference between alabaster and marble?
â Alabaster vs marble are materials that most deceive at first sight. Alabaster is softer and lighter than marble. Alabaster weighs 143 lbs. per cubic foot while marble weighs 162 lbs. per cubic foot. Alabaster is a chemical sedimentary rock, which means it was made of detritus precipitated from a body of water. Whereas, Marble is a metamorphic rock, which was formed out of another sort of rock due to the extreme heat and pressure in the Earthâs crust.