Create Streckeisen diagrams directly from QAPF-data
Using this app, Streckeisen diagrams can now be created directly without having to calculate the CIPW norm first. Your QAPF data will be automatically normalized to 100 and you can directly download the diagram as a png file.
Enter your data for quartz, alkali feldspar, plagioclase and the foids (QAPF) below: