Drop (not confirmed)

item	chance	amount
Adena	70.0%	2340–5464
Corroded Silver Nugget	31.7%	1–3
Corroded Adamantite Nugget	11.9%	1

Spoil (not confirmed)

item	chance	amount
Corroded Silver Nugget	47.2%	1
Corroded Adamantite Nugget	9.3%	1