Cheaper Indian Sandstone is not always the bargain it appears as it is thinner, or poorer quality and more porous causing leaching of the minerals in the mortar onto the top surface of the stone. There are some inexpensive granite slabs currently available that make a wonderful surface only slightly more expensive than Indian Sandstone. The more expensive options are Travertine, York stone, Basalt, and Marble.
Consider the long term practically and maintenance of patio materials carefully....Most people only think about materials in terms of the cost but that should not be your only consideration. You don't always require the cheapest patio material. On the contrary, you also need to think about what patio materials are going to last for a long time and what kind of maintenance each type of material needs.
Stone Veneer : Stone veneer generally contains most of the benefits and advantages of real stone and it is comparatively a lighter type of patio materials and less expensive. Stone veneer can easily be cut with most common types of saws. Generally, most people will lay out their veneer pieces ahead of time so they can cut pieces to fit in odd spots in advance. It is also as durable as most other patio materials. It requires very minimal maintenance. In addition, stone veneers are much easier to find in the market.
They can be used virtually on any type of surface. Tiles are very comfortable to walk on and relatively smooth which makes it safe to use. Hence, there will be little fear of people tripping on any part of it. In addition, patio furniture will sit squarely on the tiles surface, that may not happen if you use another type of patio materials.