Title

Dedicated to the teaching of Earth Sciences

GEOLOGY RESOURCES FOR STUDENTS,
TEACHERS, AND RESEARCHERS

Prof. Sean Tvelia Suffolk County Community College

 

Pegmatite
Granite Pegmatite

Igneous Rock Identification

Step1: In order to identify your igneous rock first determine the rock's color index

 

   

 

Igneous Rocks:

Color Index

Texture

Igneous Rock Idenitification