Sometimes these types of heat sinks are referred to as a HSF, which is short for heat sink and fan. Passive heat sinks are 100% reliable, as they have no mechanical components. Passive heat sinks are made of an aluminum-finned radiator that dissipates heat through convection.
Schist is a metamorphic rock that contains flakes of mica. Schist can originate as a sedimentary rock or igneous rock. <a href=http://www.softschools.com/facts/geology/schist_rock_facts/387/>Schist Rock Facts</a>. Handwriting.
Mica imparts a sparkly white appearance to cosmetics and personal care products. Scientific Facts: Mica is a group of silicate minerals that are widely distributed in different types of rock. Mica often occurs as flakes, scraps, or sheets, and has been used by humans since prehistoric times.