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Instead of another invasive surgery to remove the pacemaker, it simply dissolves over time into a nontoxic compound known as silicic acid.

The samples with leachate had more silicic acid as well, which is used by plankton like diatoms to make their microscopic shells.

Volcanoes that form over land contain what's called silicic magma, which is high in silica and has a high viscosity.

When silicic magmas are no longer confined under sufficiently high pressure, the gases dissolved within them come out of solution and form bubbles.

Iconic cone-shaped volcanoes called stratovolcanoes, such as Mount Pinatubo, are loaded with silicic magmas.