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The atlas · Rocks and minerals · Minerals and crystals

Outline · being written

What is a mineral?

What makes a mineral, and the tests geologists use to tell them apart.

The working diagram The hardness scale with an everyday object at each step.
Page type
A lesson, led by a working diagram
Collection
Rocks and minerals, minerals and crystals
Status
Planned and outlined. Every fact in it will be checked against a named source and listed on Sources before it goes up.

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