Is Granite A Gemstone

Until the early 18th century in the western world granite could be carved only by hand tools with generally poor results.

Is granite a gemstone.

Granite is hard enough to resist abrasion strong enough to bear significant weight inert enough to resist weathering and it accepts a brilliant polish. Composed primarily of quartz and feldspar it also may contain orthoclase which is a form of feldspar which can form in plate like layers short prismatic crystals and. In order to get the slabs that are used to make bathroom and kitchen countertops large blocks of granite are extracted from quarries. Granite is a natural stone which is formed in the earth s crust and is the result of the cooling of lava composed of minerals.

Granite is typically heat resistant up to temperatures of 250 c 480 f although direct application of localized heat sources is discouraged since strong thermal gradients within the stone can initiate cracking. The exact amount of minerals is what creates the different colors and patterns in the beautiful slabs of granite you see. Granite is the rock most often quarried as a dimension stone a natural rock material that has been cut into blocks or slabs of specific length width and thickness. Allowing for increased protection and abundance.