Translation of comer. On the contrary, Swiss like to isolate themselves from the rest, maybe because the believe that they are superior or better, or maybe because they are just afraid of the unknown, change is not happening.ranslation of comer. On the contrary, Swiss like to isolate themselves from the rest, maybe because the believe that they are superior or better, or maybe because they are just afraid of the unknown, change is not happening.
Dark colored igneous rocks are high in iron and other heavier elements: ma-fic, magnesium-iron. Light color igneous rocks are high in aluminum and potassium. .ou need to understand one of the fundamental differences between mafic and felsic rocks. Mafic rocks contain larger amounts of Mg and Fe than felsic rocks. The atomic weights of Mg and Fe are higher than Al, Si, and O, therefore they tend to be heavier. Very simple concept.
Best Answer: Usually, very dark igneous rocks are mafic rocks that have been formed deep underground. They include gabbros and peridotite. They have very little silica content (which gives them the darker colour and a lot of iron and magnesium.They are usually denser than the felsic rocks with high silica content.est Answer: Usually, very dark igneous rocks are mafic rocks that have been formed deep underground. They include gabbros and peridotite. They have very little silica content (which gives them the darker colour and a lot of iron and magnesium. They are usually denser than the felsic rocks with high silica content.