Stones

__**Stones**__


 * **What are stones?**Stones are pieces of rock found in nature that can be used for constructing longlasting walls and buildings, since it is a very hard and resistant material.


 * **How many kinds of stone do you know? **  Marble, granite and alabaster 


 * **What characteristics do stones have? ** ResistanceDurabilityDifficult to quarryDifficult to cutSolidity

> > > **Paragraph:** Stone is a great material for construction, it can be used naturally, and it will have durability through time and, will adapt to sculptural treatment. But stone isn't easy to get, because it is hard to quarry, (that's why it is so expensive), and even if you have it, you'll have troubles cutting it or for transporting it. It is also weak in tension, you would have to use it as piled blocks, since it works better that way. But beware of loads pushing in the sides of any stone constructions, since stones support better downward loads than loads pushing at angles. There are many types of stonework, like rubble, mortar-bounded broken stones, **used for filling**, and there's ashlar masonry, regularly cut blocks, **that is the** **strongest and most suitable stonework for monumental architecture**. Stoneworks barely need bonding, but it is usually made of mortar or cement. > media type="file" key="stone.wav" > > >   >  
 * **Why are stones used in construction? ** <span style="display: block; color: rgb(162,16,61); font-family: Georgia; text-align: justify;">Because of its permanence through time, it can stand in any weather without rotting, or crumbling.