Stardust@home

I'm wondering if the optical data on the aerogel and some of these particles is available. More specifically: What is the refractive index of the aerogel? Does it vary across the various plates? Is the aerogel isotropic or anisotropic? What does this material look like in polarized light? Are the op...

I'm a geologist and and have been doing microscopic identification of minerals for more than 25 years. Trying to figure out what the residual particles are is part of the entertainment.