I had this idea due to walking outside and keeping stepping on it. But maybe you can think of it as hydrogen oxide aerogel, if you must.
I don't think this is as well-modeled (modded?) as I'd like, but I'm curious about how it does against lasers. Information taken from wikipedia, here, here and here, for a middle-of-the-road level of packing for snow.
Material Snow Elements O H ElementCount 1 2 IsPorous true Density_kg__m3 450 YieldStrength_MPa 2e-3 UltimateTensileStrength_MPa 2.5e-3 YoungsModulus_GPa 3e-5 ShearModulus_GPa 7.8e-5 MeltingPoint_K 273 ThermalConductivity_W__m_K 3.8e-1 SpecificHeat_J__kg_K 2090 ThermalExpansion__K 50 RefractiveIndex Water RoughnessCoefficient .5
One thing I don't understand is why, when used as armor, it shows up as black. I'd like it to be fluffy white, and then have the community design things for a snowball fight (all projectiles must have snow only). But I would also like to know how it does against lasers, and that probably means we need to get the refractive index and the roughness coefficient right.
Hmm. For now try and use lithium's refractive index. I had the same issue when creating bone.
Right, that would look better, but it might respond to lasers incorrectly (as seen on Rocket Witch styrofoam's suggestion). I both want to have snowball fights and to test the effectiveness of snow as armor against lasers.