G2-granite hand sample taken from its incubating mountain

Granite is a very common rock, not only in geoscience but also in industry and daily life. If you live in a modern city and have a well-prepared house, exactly the kitchen or at least the stairs of your own house are made from granite.

Granite is not only one type, as it is well-known in geoscience. Even in industry, any color has a different price. The green granite is the most expensive; the pink granite is slightly more expensive; but the black-white granite is a common and popular one.

The difference in its color comes back to the mineral assemblage that comes into forming it, also known as the rock-forming minerals.

The published hand sample you see here is of G2-granite with a pink color. In addition, G1-granite has a gray or black-white color, but G3-granite has a dim red color or a dense brownish red color.

Sample Morphology:
1. The white mineral grains that appear in the sample here are of plagioclase "pl".
2. The black ones are made of mafic minerals (mafic: dark minerals).
3. The semi-brown minerals are of orthoclase "or".

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⁃ Taken and published by Geologist Metwally Hamza,
⁃ Academia: benha.academia.edu/MetwallyHamza
⁃ Let's Connect: linkedin.com/in/metwallyhamza