Data in this database are freely available under the request of citation of   this paper   and the  paper   in which the data were published.

Pinatubo

origin	Pinatubo volcano in the Philippines. The particles were produced by crushing larger pieces of debris collected at several kilometers from the volcano
main constituents	silica glass, plagioclase, amphibole, magnetite
practical significance	interpretation of remote sensing data. Analogues of other planets' atmospheric dust, and dust in comets, asteroids, and circumstellar shells
particle size	measured size distributions Fraunhofer: reff=3.0 μm, veff=12.3
particle shape	irregular
refractive index	estimated to be in the range [1.5-1.6] + i[0.00001-0.001]
color	light gray
scattering matrix	441.6 nm 632.8 nm
article	Volten H, Muñoz O, Rol E, de Haan JF, Vassena W, Hovenier JW. Scattering matrices of mineral aerosol particles at 441.6 nm and 632.8 nm. Journal of Geophysical Research, 106, no. D15, pp. 17,375-17,401, 2001 Muñoz O, Volten H, de Haan JF, Vassen W, Hovenier JW. Experimental determination of the phase function and degree of linear polarization of El Chichón and Pinatubo volcanic ashes. Journal of Geophysical Research, vol. 107, no. D13, 4174, 10.1029/2001JD000983, 2002