Amnesia Meaning. Amnesia is a medical condition which affects the brains ability to recall memory information. The symptoms of amnesia can be caused by a variety of different reasons. Some of these reasons include brain damage, traumatic events, or even the use of certain drugs.
The best sauna rocks are actually igneous rocks which come from cooled lava. Yes, that does cover a variety of rocks from granite (which are too heavy) to pumice (too light), but there exists a special type of dark-colored volcanic rocks which are juuust right.he Rocks and your Sauna Heater. Once you have the right stones, you must remember not to operate the heater without the rocks in the tray. Size is important too. The sauna rocks should be about the size of your fist or a large potato.
Obsidian and basalt. If the magma cools quickly, small crystals form in the rock. This can happen if the magma erupts from a volcano. Obsidian and basalt are examples of this type of rock. They are called extrusive igneous rocks because they form from eruptions of magma.ranite and gabbro are examples of this type of rock. They are intrusive igneous rocks because they form from magma underground. Unlike sedimentary rocks, igneous rocks do not contain any fossils. This is because any fossils in the original rock will have melted when the magma formed. 1  Page. 2  1. 3  2.