Sample information
- Name
 - SL4-12
 - Type
 - Porous basalt vesicles filled with alteration phases
 - Aspect
 - rock
 - Origin
 - Carriere des Barrys, Yssingeaux, France
 - Curation
 - L. Mandon, LGLTPE
 - Citation
 - Mandon, L., Beck, P., Quantin-Nataf, C., Dehouck, E., Thollot, P., Loizeau, D., Volat, M., n.d. ROMA: a database of rock reflectance spectra for Martian in situ exploration.
 
Reflectance data
Experiment: Reflectance measurements on various levels of altered basaltic flows in Loire and Velay, France
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        [calibrated]
        [refined]
      
      
	  | Band parameters | ||||
|---|---|---|---|---|
| Position (nm) | Depth | Width (nm) | Area | FWHM (nm) | 
Experiment: Reflectance measurements on various levels of altered basaltic flows in Loire and Velay, France
        Download data:
        [calibrated]
        [refined]
      
      
	  | Band parameters | ||||
|---|---|---|---|---|
| Position (nm) | Depth | Width (nm) | Area | FWHM (nm) | 
XRD data
        Download data:
		[counts]
	
	First-order composition:
	Plagioclase
Pyroxene
Nontronite
Halloysite
	(+: <15%, ++: 15–30%, +++: 30–60%, ++++: >60%, none specified: missing Reference Intensity Ratio(s) in the PDF-4 database)