Almost any stone can be used for drink coaster. They protect the furniture and are easier to maintain since they can be wipe cleaned and do not spoil due to moisture. Rather sandstone coasters are considered absorbing coasters.
The marble or soapstone coasters may be carved or inlayed, granite and slate are often finely polished or for a rustic look, smoothed but not polished to shine. Their beauty lies in the combined effect of natural stone character and human imagination and artistry. They have soft base or rubber feet to protect the furniture from scratches.
Almost any stone can be used for drink coaster. They protect the furniture and are easier to maintain since they can be wipe cleaned and do not spoil due to moisture. Rather sandstone coasters are considered absorbing coasters.