1. Lab # 8 – Due 11/14 - Ign Id Word Bank
Use the pictures that follow to help you identify the 8 rock samples.
USE THE FLOW CHART on the back of the lab packet to identify each rock NAME.
A word bank is provided
Use your ESRT for the questions
Word Bank
Obsidian – Basalt – Pumice – Scoria – Rhyolite – Granite – Diorite – Gabbro

2. Sample # 1 -
Dark
Glassy
Extrusive
Felsic

3. Sample # 2 -
Dark
Fine
Extrusive
Mafic

4. Sample # 3 -
Dark
Vesicular
Extrusive
Mafic

5. Sample # 4 -
Dark
Coarse
Intrusive
Mafic

6. Sample # 5 -
Light
Fine
Extrusive
Felsic

7. Sample # 6 -
Light
Coarse
Intrusive
Felsic

8. Sample # 7 -
Both Dark & Light
Coarse
Intrusive
Both Mafic & Felsic

9. Sample # 8 -
Light
Vesicular
Extrusive
Felsic

10. Lab Reflection Lab # 8 – Due 11/14 - Igneous Id
What was the problem or purpose of the lab?
What did we do during class?
Describe how igneous rocks form?
What are some characteristics that are dominate in igneous rocks?
How can you go further?, Why did we do the lab?, How does it relate to your life?