Stone

=Stone=

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 * ** What are stones? ** Stones are materials of the nature, usually really hard. This was the first material that the first humans used for contructions.
 * ** How many kinds of stone do you know? ** Igneous, Sedimentary and Metamorphic. Examples of this are; Granite, Marble, sandstone.
 * ** What characteristics do stones have? ** Usually they are color Gray, black, browns. Harness, durability.
 * ** Why are stones used in construction? ** Stone can be used for a lot of things in construcion. To create walls, usually is used for floors, decoration, sculture etc.

 Paragraph about Stone:
 Stone is the oldest material that is use for construction. Since the Stone Age, people use this material to create monumental architecture. The advantages of stone are durability; adaptability to sculptural treatment and that is used naturally. The disadvantages are that is a very difficult material to transport, quarry or cut. Weakness in tension and expensive.