International Association of Geoanalysts - GeoPT



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GeoPT spring round postponement

Owing to the Covid-19 pandemic, GeoPT operations have been interrupted. We are canvassing participants through a short questionnaire to assess the readiness of laboratories across the world to participate in G-Probe 24.

We hope to send out test materials in July, but it depends on the readiness of sufficient laboratories. We will notify you when we have firmed up our plans as initially outlined in the global email sent to participants earlier this year.

Reports for the Autumn Round test materials, GeoPT46 (Granodiorite, HG-1) and GeoPT46A (Phosphate rock, POLC-1), are available for download.

For enquiries about:

The programme and the website, contact Peter Webb:

Delivery of test materials, contact Charles Gowing:

Payments and subscriptions, contact Chris Jackson:

The G-Probe proficiency testing programme is provided by the International Association of Geoanalysts (IAG):

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International Association of Geoanalysts - GeoPT
British Geological Survey
Environmental Science Centre
Nicker Hill
NG12 5GG
Telephone: +44 (0)115 936 3345

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