Stone

What are stones? ** The stone is hard, solid, nonmetallic mineral matter of which rock is composed. Is a piece of rock shaped or finished for some purpose; specif. I do know a few of them like: Marble is a medium density material suitable for use on vanity tops, fireplace facings, tabletops and floors. Below are just a few of the many colors available. Granite is a high-density material ideal for use on kitchen countertops, vanity tops and floors. It is resistant to heat, stains and scratches. Granite is available in a wide variety of colors quarried from around the world. Below are a just a few of the many colors available. Limestone is a low-density material suitable for fireplace facings, tabletops and floors. It is most commonly used where a warm, natural look is desired. Limestone is available in a variety of earth-tone colors. Below are a few of the available colors.
 * [[image:srones.jpg width="91" height="89"]][[image:sotones3.jpg width="114" height="90"]][[image:stones4.jpg width="74" height="90"]][[image:stones2.jpg width="124" height="90"]][[image:sotne.jpg width="87" height="91"]]
 * How many kinds of sotnes do you know?**
 * Marble **
 * Granite **
 * Limestone **

The stones are hard, solid, durable, are adapted to sculptural treatment. But it is difficult to quarry, transport, and cut, and its weakness in tension limits its use for beams, lintels, and floor supports. In most areas where stone is available, it has been favoured over other materials for the construction of monumental architecture. Its advantages are durability, adaptability to sculptural treatment, and the fact that it can be used in modest structures in its natural state.
 * What caracteristics do srones have? **
 * Why are stones used in construction? **

Stone is a mineral sedimented in nature over time and it was used in architectonic constructions. This material has several qualities that are useful for the construction and design of structures because of its hardness characteristics. For example, stone is durable and it can adapt to sculptural treatment and it can be used naturally. But this mineral has some disadvantages like it is very difficult to transport or cut and even quarry. It is also weak in tension, expensive and unstable with loads pushing at angles. There are two ways that you can work stone to make it more useful in constructions. The first is rubble that consists in broken stone, of irregular size, shape and texture. The second way to work it is ashlar masonry that consists of rectangular cut stones laid with mortar in horizontal courses Stone has been used since Stone Age and that is because stone is hard enough to make very large structures such as monoliths which early people used for giving importance to spaces. Nowadays, human beings have improved technology in a way to convert stone in new shapes to be used in architecture.
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