One cracked open

One cracked open

Here's one showing the inside features. Maybe Matt can comment on the geological make-up.


Pat from Canvey's picture

Matt has made no comment so far

Matt has made no comment so far. Too busy in his new day job earning money and hopefully studying at night.

kat's picture


That sounds weird. I can't imagine how a rock could form accretion-wise. The inside looks really weird as well - lots of holes in the middle. I guess it's only as weird as geodes are though so probably not that weird at all... wonder what Mat will say?