Rock and Mineral
- Episode aired Oct 21, 1996
Shatters the stone's reputation for "rock-solid" permanence. Discover how rocks keep a constantly changing record of our planet's fascinating history, and see how minerals are at the very co... Read allShatters the stone's reputation for "rock-solid" permanence. Discover how rocks keep a constantly changing record of our planet's fascinating history, and see how minerals are at the very core of our civilization.Shatters the stone's reputation for "rock-solid" permanence. Discover how rocks keep a constantly changing record of our planet's fascinating history, and see how minerals are at the very core of our civilization.