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Our Earth: Rock Recipes
Rock Recipes
Season 1  |  Episode 6  |  ABC  |  March 23, 2010
Classification: Not Classified Classification: Not Classified
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Rocks are complicated collections of mineral particles. Four silicate mineral groups make up 90% of the crustal rocks - mafic minerals, quartzes, feldspars and micas. Rocks come in three basic varieties - igneous, sedimentary and metamorphic. These are the ingredients of the rock cycle.

Rocks are complicated collections of mineral particles. Four silicate mineral groups make up 90% of the crustal rocks - mafic minerals, quartzes, feldspars and micas. Rocks come in three basic varieties - igneous, sedimentary and metamorphic. These are the ingredients of the rock cycle.

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