MARTIN BOND / SCIENCE PHOTO LIBRARY MARTIN BOND / SCIENCE PHOTO LIBRARY
Quartz crystals. Cluster of quartz crystals. Quartz is a form of silica (silicon dioxide, Si.02). It occurs naturally all over the world as sand, and in rocks and mineral veins. It has many desirable properties and consequently has many applications. Quartz is a constituent of glass and porcelain and an important raw material in the electronics industry. Quartz crystals are also collected for their beauty.
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