This is not the place to make geological lesson, but we have to know what we are talking about. Type of natural stones are several and each type have a certain number of use, witch is better to know. Otherwise we should have some delicate problems.

The following pages are simply to give some advise and example as what the professional do. Will also try to use simple language to be understood by all.

For more technical advise, please click on “STONE DATA BASE”