After the collection and characterization of more than 100 natural samples, analogue to planetary surfaces, we have gathered spectral data, and elemental and mineralogical characterization of these samples in an online database available at
There, you will be able to browse through the samples, and/or through data and results from each instrument. Tutorials are present to help you navigate though the website. In addition, a spectral tool, the SpectPro software, is available for download to help you visualize and analyze all PTAL spectral data.

To access, please simply request a username and password by sending an email to