Metamorphic Rock Identification

To begin identifying your metamorphic rock follow the steps outlined below.

Step 1:Determine the texture of the metamorphic rock This database organizes metamorphic rocks into two major categories: Folitated or Nonfoliated Texture: Foliated Nonfoliated

Step 2: Grain Size In order to narrow down possible metamorphic rocks determine the grain size of your metamorphic rock. Coarse grain metamorphic rocks will have mineral grains visible to the naked eye while Grain Size: Coarse Fine

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