Obsidian shard

Underneath the gnoll encampment in Aleph Marsh, while Vichthart was unconscious from a fight with a gnoll packlord and its bodyguards that they wrongly believed to be Srir Silthallow, Anrel and Grokko explored a bunkroom to the northeast. Underneath the bed next to the table they found a strongbox, which Grokko opened, taking piercing and poison damage from the needle trap that caught him unaware.

Inside the strongbox he found 46 silver pieces, 22 gold pieces, a garnet choker, bottled breath, two agate gemstones, and a small shard of obsidian with a green sheen. Grokko knows that obsidian is very rare, but had recently seen some in Jenora Greenheart's belt buckle.