[Rockhounds] BASIC geo-chem question...

[gary brown]

Oh my yes... volcanic eruptions!  Over the years the volcanoes in Iceland
have produced clouds of HF-rich vapors that have done Bad Things to  folks
downwind.  In Iceland they have trenches dug in the hillsides to channel
gases downslope.  In the past massive flocks of sheep would die during
eruptions (not to mention the shepherds!).   When the HF hit Europe it
caused massive casualties.  Iceland... where the weather, volcanic gasses,
lava... all sorts of things can do you in!

GcB

-----Original Message-----
From: Rockhounds <rockhounds-bounces at rockhounds.drizzle.com> On Behalf Of
Mike Flannigan
Sent: Tuesday, January 28, 2020 5:13 PM
To: rockhounds at rockhounds.drizzle.com
Subject: Re: [Rockhounds] BASIC geo-chem question...


I was going to say that HF does not occur naturally in nature, but this
article:
https://en.wikipedia.org/wiki/Hydrofluoric_acid
says I am wrong about that.

It says:
Hydrofluoric acid can be found in nature, having been released in a volcanic
eruption.