Earth Science MiniLab: How Do Igneous Rocks Differ?
Name________________
Purpose: Compare and contrast the different characteristics of igneous rocks.
Procedures:
1. Using the igneous rock samples provided by your teacher, carefully observe the following characteristics of each rock: color,
grain size, texture, and if possible, mineral composition.
2. Record your observations in the data table.
Name and number
of rock
Color
Grain size
Texture
Mineral
composition
Analysis and conclusions:
1. What characteristics do the extrusive rocks share? How do they differ?
2. What characteristics do the intrusive rocks share? How do they differ?
Intrusive
extrusive
or