When building a grave you can choose from several types of tombstones. Generally speaking, it is either natural or artificial stone, nowadays also glass.
As for natural stone, tombstones are made of siliceous and limestone siliceous stones. The siliceous category includes durable granite, slate and silica. Marble is a representative of limestone stone. It is softer than granite and is more easily subject to moisture, so it requires more care. Likewise, sandstone.
Tombstone made of stone is durable, looking majestic and timeless.
Artificial stones represent usually a cheaper option for creating a tombstone. These are different mixes, such as gravel and cement (so-called teraco “stone”). Artificial stones are less resistant to moisture and mushrooms.