Granite is an igneous rock formed from molten magma deep beneath the earths surface, 60 to 100kms deep. Being less dense than surrounding solid rock it rises to the surface either settling just beneath the surface or erupting as lava from a volcano. The magma beneath the earth's surface cools slowly, producing coarser grained granite as the crystals have longer to grow; whereas volcanic lava cools quickly thus the crystals are smaller. True Granite is made up of quartz, orthoclase, plagioclase, hornblende, biotite, muscovite and other minor minerals. The type of minerals present determines the colour of the granite. Granite is a very hard material, it rates a 7 on the Mohs scale where talc is 1 and diamond is 10. It has been used extensively as a dimension stone and as flooring in commercial applications. Therefore polished granite is an ideal product for kitchen countertops due to its high durability and aesthetic qualities. Granite is a very dense material, so it can stay quite cold to the touch, if a sudden change in temperature occurs in a localised area cracking can occur. Granite can withstand some exposure to heat but placing hot pots direct from the stove or oven is not recommended. Heat generated through large windows can also cause cracking especially in Black granites, which is very dense.
Granite is a very easy product to clean it is virtually maintenance free. Warm soapy water or a spray cleaner is all that is required for day-to-day cleaning. Heritage stone can provide specialised spray cleaners.
Most granites do not require sealing as they have a low porosity, any spills should be wiped clean as soon a possible as soakage can occur. Lighter coloured granites tend to have a higher porosity therefore we apply a penetrating sealer to these.
If you notice dark spots appearing when water is spilled contact Heritage Stone and we will provide you with the correct sealer.Granite is tough, durable and easy to maintain. Each piece of granite is unique which adds personality and character to your kitchen. Granite adds a touch of class to any home it is an asset that will pay you back more than you invested.