Academic Research Edition

GeoChemPlot Pro 4.0

Professional geochemical data analysis, classification and visualization — all in your browser.

Drop your Excel / CSV file here

or click to browse — supports .xlsx, .xls and .csv

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Rock Classification

Sample Rock type (TAS) Magma series (AFM) Alumina saturation

Geochemical Diagrams

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Choose a diagram from the list to plot your data

Diagram
Symbols & groups


Used only when the analysis reports total iron.

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All diagrams as a ZIP archive

Every selected diagram as an image and as its own PDF, plus the combined report, the calculation workbook and the APA reference list, filed by category.

Combined PDF report

A cover page, the analytical table, the geochemical indices, then one diagram per page with its title and reference.

Calculation workbook

Every number behind the diagrams: iron recalculation, molar and cation proportions, indices, multicationic parameters, the CIPW norm, all trace-element ratios, the normalised spider values, and the exact coordinates each sample was plotted at on each diagram.

Geochemical Indices

CIPW Norm Calculator

Enter major oxides (wt.%)
Normative minerals

Enter oxide values and press Calculate.

References (APA 7)

Full references for every diagram, formatted in APA 7th edition. Download them as a Word document or copy them straight into your manuscript.

Sources of each diagram
Reference list