Come and Visit Gil Family Estates at VanWineFest 2018 ...
Shale is made up of clay - which is less than .0004 cm Siltstone is made up of silt - which is between .0004cm and .0006cm Sandstone is made up of sand - which is between .006cm and .2 cm Conglomerate is made up of pebbles, cobbles and boulders. If you look on pg. 6 of your reference table the upper right chart shows that pebbles are.2 cm to 6 ...