Image 3 of 156
Previous
Home
Next
2.1 Biotite granite. Near Woodleaf, North Carolina. Gray quartz, white alkali and plagioclase feldspars, and black biotite. [The scale is the standard GSA scale with cm divisions.]
Image 3 of 156
Previous
Home
Next
![2.1 Biotite granite. Near Woodleaf, North Carolina. Gray quartz, white alkali and plagioclase feldspars, and black biotite. [The scale is the standard GSA scale with cm divisions.]](../2.1.JPG)