The Rocks & Minerals Challenge Game
 
Rock Identification by Picture and Attribute
Explorers! Before you begin your journey, you need to recognize these geological specimens.
 
Begin by selecting one of the specimens pictured.
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Metamorphic
     
     
Igneous
         
Sedimentary
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Name: Arkose
 
Classification: Sedimentary
Mineral Compostion:
depends on the composition of the rock fragments
Texture and Distinguishing Properties:
medium angular clasts, well sorted
How Did the Rock Form?
deposited rapidly in a desert area
About this rock:
Feldspar can contribute as much as a third of the rock. Rock fragments are common.
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Igneous
   
Sedimentary
     
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