It is an intrusive igneous rock composed mostly of quartz, alkali feldspar and plagioclase. Granite is diversified in terms of colours (shades of grey brown, white, pink). It is characterised by coarse-grained structure where particular minerals are visible to the naked eye. It is a stone easy to work, strong and resistant to changeable weather, including frost. Waterproofness makes it a frequent material used in a kitchen, bathroom, for external use. It is worth mentioning that granite is not sensitive to acids and mould. Due to high density it accumulates heat well, which makes it an attractive finishing material for under floor heating or fireplace cladding. Granite is the most resistant to mechanical damage, abrasion and scratches of all natural stones. Taking trading name into consideration, under the name of granite other stones of similar features are available, including basalts, porphyries, gneisses, hard dolomites or quartzites.