Granite Phase Maps. Click on any map to open the Rock Library chemical map page for the sample (the hand sample will be visible first). Use the sidebar on the page you open to navigate through the images and maps.

W-12 Phase Map

grnpm_001. Biotite (brown), muscovite (blue), quartz (pink), plagioclase (yellow), microcline (peach) granite from Concord, NH, USA (Concord Granite). Wards Collection of North American rocks, Smith College sample (W-12).