a mixed metaphoric (ash and ye shall receive)
So what happens if you encounter ice crystals whilst within a volcanic ash cloud?
Wouldst be a good thing or a bad thing?
Lots of condensation nuclei inside those thinly concentrated ash clouds that float on in the stratosphere well after an eruption .....might serve to encourage ice crystal formation. But with some added water in the form of melting ice crystals it might just give you a good blade polish (Like throwing a bucket of walnut shells down the intake).
withdraws tongue from battered cheek.....