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The three rocks statements below are observations of the same rock sample:

  • the rock has intergrown crystals from 2 to 3 millimeters in diameter
  • the minerals in the rock are gray feldspar, green pyroxene, and black amphibole

-there are no visible gas pockets in the rock

This rock sample is most likely

Asandstone B) granite C) gabbro D) Phyllite

Verified Answer :

lrathburn

The rock that fits the following observations is Gabbro. 
- the rock has intergrown crystals from 2 to 3 millimeters in diameter 
- the minerals in the rock are gray feldspar, green pyroxene, and black amphibole 
-there are no visible gas pockets in the rock 

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