DK Clip Art

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Images 160 of 241 - Tourmaline crystal
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    Tourmaline crystal
Description:
Tourmaline is a name given to a variety of metal silicates. They are treated as semi-precious stones and come in a variety of colours.
14 of 21 pages
Thomsonite
Hand axe
Realgar mineral
Tourmaline crystal
Orpiment mineral
Earth's biosphere
Earth's axis
Young earth
Earth heating and cooling
Oceans and atmosphere
Earth cut away
Magnetic field