Types of Granite and Marble
White granite rocks SabzevarGranite is a common type of felsic intrusive igneous rock that is granular and phaneriticin texture. Granites can be predominantly white, pink, or gray in color, depending on their mineralogy. The word "granite" comes from the Latin granum, a grain, in reference to the coarse-grained structure of such aholocrystalline rock.
Gray granite BorujerdBy definition, granite is an igneous rock with at least 20% quartz and up to 65% alkali feldspar by volume. This is the heaviest stone rocks with a density of 2.75 grams per cubic centimeter. The melting temperature of dry granite at ambient pressure is 1215–1260 °C (2219–2300 °F); it is strongly reduced in the presence of water, down to 650 °C at a few kBar pressure.
Green GraniteGranite is one of the strongest and hardest rocks therefore widely used as a building material. Resistance to corrosion makes extensive use of this stone is in the lab. Resistance and high hardness of this stone is it possible that only a few millimeters thick sheets of the stone building.
Marble – shahr e kordMarble is a metamorphic rock that may be foliated or non-foliated, composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Geologists use the term "marble" to refer to metamorphosed limestone; however, stonemasons use the term more broadly to encompass unmetamorphosed limestone. Marble is commonly used forsculpture and as a building material.
Smoked Marble - Najaf AbadConstruction marble is a stone which is composed of calcite, dolomite or serpentine which is capable of taking a polish.  More generally in construction, specifically the dimension stone trade, the term "marble" is used for any crystalline calcitic rock (and some non-calcitic rocks) useful as building stone. For example, Tennessee marble is really a dense granular fossiliferous gray to pink to maroon Ordovician limestone that geologists call the Holston Formation.
a member of the cashew family, is a small tree originating from Central Asia and the Middle East.The tree produces seeds that are widely consumed as food.
Pistacia vera often is confused with other species in the genus Pistacia that are also known as pistachio. These other species can be distinguished by their geographic distributions (in the wild) and their seeds which are much smaller and have a soft shell.