I'm 90% certain that it's cyanide- what else
comes in little eggs 1/4 or 1/3 inch long?????
Doesn’t sound like cyanide to me. Cyanide eggs usually measure
about an inch long by 3/4" wide, and are chalky. BTW, cyanide
gets REALLY dangerous when mixed with an acid solution
(hydrochloric etc…), producing hydrocyanic gas, the same stuff
they use in the gas chamber. I’ve handled cyanide for years in
the form of plating and stripping solutions, bombing, etc… and
to my knowledge have never suffered any adverse effects. Just the
same, I began steering away from use of any poisonous substances
when my kids were born on the off chance that they could possibly
get into it. Lots of chemicals come in egg and flat oval shapes,
could be one of many different things… I used to buy potassium
hydroxide is shapes like that… You might simply consider giving
it to your local pharmacist, he might dispose of it for you.