Photo Expeditions & Photography Tours We offer you a fine selection of photo tours to exceptional places guided by experienced photographers. These tours are ideal if you are interested in learning or improving photography or, if you are an experienced photographer yourself, to get to the best locations at the best times.
Igneous or magmatic rocks The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
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