gemstones

Rock & Mineral (1996)

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Which world-famous rock came from outer space? Why were rubies once known as bloodstones?

ROCK & MINERAL 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.

Grade Level:

Elementary

Middle

Length:

00:35

Rocks & Minerals Series (2001)

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This DVD contains 4 - 20 minute videos:

Minerals and Their Properties
Some of the terminology and concepts conveyed in this video include: inorganic, luster, streak, color, cleavage and fracture, specific gravity, hardness, Mohs scale, ore, metals, and gemstones.

Grade Level:

Middle

Length:

01:20