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SX-50 and SX-100 microprobes database (Dept. of Geosciences, UMass Amherst) | Print date: 08/12/2022 (04:12)
Mineral formula calculation (atom per formula unit)
Start over... (this will reset all input)
STEP 1: input...
A text input can contain several analyses of the same mineral type, either in oxide or element wt-%.
WARNING: if entering element with oxygen wt-%, default oxidation state will be loaded unless you specify the oxidation state (e.g. Fe3+, Cu+). However, you can still change the oxidation state in the next page. If data do not contain oxygen wt-%, it will be assumed that the analysis is elemental only (e.g. alloy), and only cation normalization will be available.
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