All rocks should have to be registered and California should not allow concealed rocks.
Plus all rocks should be no larger than 10mm in diameter.
Further, full-auto hunting rocks must be outlawed.
There’s no reason private citizens should have rocks.
Nobody under the age of 21 can even touch a rock, all rocks MUST be registered, and of course, everyone must go through a screening, prior to being allowed to own a rock. :-)
We can go further-
Round, smooth rocks smaller than 10mm
in diameter are legal, providing they
don’t weigh more than 7gr.
No rock, regardless of size, will have
a rough or scalloped surface.
All rocks will be either black or brown
in color. Being in possession of a white
rock (regardless of size) will result in
the immediate loss or suspension of your rock rights,
and you will not be eligible to apply for
a concealed rock carry (CRC) permit.
The California legislature is also considering banning the Earth for manufacturing rocks.
Those black, obsidian rocks are the most dangerous. They need their OWN category.