Geochemistry / Igneous Petrology · Runs entirely in your browser · PyScript
CIPW Norm Calculator
Enter a whole-rock major-oxide analysis (wt%) to compute the CIPW normative mineralogy — the standard-mineral assemblage a magma would crystallize under equilibrium, anhydrous conditions. Covers the common silica-saturated and mildly silica-undersaturated pathway.
Oxide analysis (wt%)
Ready. Default values are a typical tholeiitic basalt.