Data in this database are freely available under the request of citation of   this paper   and the  paper   in which the data were published.
Basalt
origin sample collected at Tenerife Island (Canary archipelago, Spain), which corresponds to the 1705 Arenas Negras volcanic eruption
main constituent pyroxene (augite), plagioclase and olivine
practical significance basalt is an extrusive igneous commonly found in volcanic environment on Earth and probably on different Solar System bodies such as Mars, where it can constitute an important fraction of atmospheric and surface dust
particle size measured size distributions
Mie: reff=6.9 μm, veff=7.0
Fraunhofer: reff=2.9 μm, veff=15.1
particle shape irregular
refractive index 1.52 + i0.00092 (488nm)
1.52 + i0.001 (647nm)  (Pollack et al. 1973)
color dark gray
scattering matrix 488 nm
647 nm
article Dabrowska DD, Muñoz O, Moreno F, Ramos JL, Martínez-Frías J, Gerhard W. . Scattering matrices of Martian dust analogs 488 nm and 647 nm. Icarus, vol. 250, pp. 83-94, 2015