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Granite
What is Granite?
Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth's surface.
Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually gives granite a red, pink, gray, or white color with dark mineral grains visible throughout the rock.
What colour is granite?
Granite is typically a conglomerate of quartz, mica, feldspar, amphiboles and other trace minerals. Those commonly found in granite and their colors include the following:
- Quartz – milky white
- Feldspar – opaque and usually off-white
- Amphibole – black or dark green
- Potassium Feldspar – salmon pink
- Muscovite – yellow or metallic gold
- Biotite – dark brown or black
- Garnet – deep red
Is Granite the hardest rock?
The only material that is harder than granite is a diamond. The hardness of granite makes it durable. Unlike other stone types, granite won't crumble or break over time.