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Karma İngilizce Soruları 3 55. Soru

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55.

A mineral can be regarded as a solid material with a fixed chemical composition and having elements that are similar throughout. This is how minerals differ from rocks. ……….. . Granite, for example, is made up mostly of three minerals - quartz, feldspar and mica. These three minerals, however, are not always present in the same quantities.

Minerals always have the same composition and structure, while rocks are usually made up of a mixture of minerals

It is particularly interesting to note that about half the Earth's crust is made up of oxygen

Except for agricultural products, most of our raw materials come from minerals found in rocks

One of the first things you might notice about a mineral is its colour, though this can be misleading

Analysing such bodies as meteorites, we find that the Earth is probably largely made up of iron, oxygen, silicon and magnesium in that order