Igneous rock
Jun 18, 2021
Igneous rocks are formed mainly from volcanic materials, such as magma.Subsurface liquid magma cools and solidifies.Mineral gases and liquids seep into the rock to form new crystals and colors.
Granite: formed mainly from quartz (35%), feldspar (45%) and potassium, usually dark in color.Very little, if any, of calcite.The texture is very hard and easier to maintain than marble, but it still has holes and can produce smudges.Granites are divided into different types according to the mixing ratio of quartz, mica and feldspar.Black granite is calcium feldspar, contains very little quartz, feldspar, its composition is different from the real granite.
