Wednesday, 17 March 2010

Why are diamonds so expensive?

Why are diamonds so expensiveis a question which lots of 3W want to answer.

Can you help us?

Please leave your answer as a comment.

Here are some links to help you research:
FOSS web rocks and soils database - includes colourful pictures of different sedimentary, igneous and metamorphic rocks
40 common minerals and their uses

Here's a quiz for you to try.

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