Rock group | Igneous |
Classification | Intrusive/plutonic |
Composition | Mafic |
Texture | Phaneritic |
Extrusive counterpart | Basalt |
Common minerals | Clinopyroxenes (e.g., augite) Ca-rich plagioclase feldspars (e.g., labradorite, bytownite) Olivine Amphibole |
Gabbro GigaPans
Gabbro
Plag-rich gabbro from Fetlar, Shetland
Gabbro in Thin Section
Thin Section GigaPans
Gabbro, plane polars
Gabbro, crossed polars
Olivine in gabbro, plane polars
Olivine in gabbro, crossed polars
![Gabbro, plane polars](http://blogs.nvcc.edu/mineralogy/files/2019/05/50HD0029-1024x768.jpg)
![Gabbro, crossed polars](http://blogs.nvcc.edu/mineralogy/files/2019/05/50HD0031-1024x768.jpg)
![](http://blogs.nvcc.edu/mineralogy/files/2017/08/Olivine-PPL-IC-5-1024x768.jpg)
![](http://blogs.nvcc.edu/mineralogy/files/2017/08/Olivine-XPL-IC-5-1024x768.jpg)