Earth - An Introduction To Physical Geology By Frederick K. Lutgens (11th) (2013) Pearson - 200page Dissolution of limestone. A marble tombstone is chemically weathered beyond recognition in a Scottish churchyard. Marble is a metamorphic form of limestone. Based upon readable dates on surrounding tombstones, this one is about 228 years old Elemental Geosystmes - Christopherson (8th) - 380page