===== PASSTEL Samples and Spectra =====
===Data currently ingested in the PASSTEL database=== 
**Bidirectional reflectance spectra (ASD) for 6 granulometric classes** 
  * Hawaii olivine (see [[http://www.sciencedirect.com/science/article/pii/S0019103511000868|Clenet et al, 2011]])
**Multiangular multispectral measurements  (ISEP) for 6 granulometric classes** 
(see [[http://www.sciencedirect.com/science/article/pii/S0019103511002405|Souchon et al, 2011]])
  * Hawaii olivine
  * Pic d’Ysson basalt (Massif Central, France) 
  * //to be ingested//: a suite of natural volcanic materials (pyroclastics and glasses)