Lab 3 - Igneous Rocks (Box #2)

Minerals - Samples 1-6

1. Biotite (Mica) - flaky, shiny, stuff used in makeup

2. Potassium Feldspar (K-Spar)

3. Anorthite- rainbowish/aquaish iridescence

4. Pyroxene

5. Olivine

6. Albite

Rocks - Samples 13-23

13. Granite

14. Porphyritic Rhyolite

15. Porphyritic Basalt

16. Gabbro

17. Peridotite

18. PICTURE MISSING OF ANDESITE

19. Pumice

20. Diorite- Salt and Pepper

21. Obsidian - Glassy

22. Granite (again!)

23. Scoria