A Trader

Mysterious "traders" have appeared all around the city of Haven (Ocllo on Siege Perilous). You can turn in Blackrock for different rewards. Simply drop the blackrock on the trader and the reward will appear in your backpack. Watch out for player scammers who name themselves "a trader". If a Trade Window opens then you dropped it on an impostor.

Rewards

For each blackrock turned in you can get one of the following rewards.

Resources 10 Blight 10 Blue Diamond 1 Captured Essence 10 Corruption 10 Dark Sapphire 1 Diseased Bark 1 Dread Horn Mane 10 Ecru Citrine 1 Eye of Travesty 10 Fire Ruby 1 Grizzled Bones 1 Lard of Paroxymus 10 Muculent 10 Perfect Emerald 10 Putrefaction 10 Scourge 1 Sweat of Paroxymus 10 Taint 10 Turquoise 10 White Pearl	Crafting +30 Ancient Hammer +60 Ancient Hammer Agapite Runic Hammer Verite Runic Hammer Valorite Runic Hammer
	Minor Artifacts Daimyo's Helm Gloves of the Sun Hanzo's Bow Tome of Enlightenment
	Major Artifacts Blade of the Righteous Darkened Sky Hunter's Headdress Jackal's Collar Midnight Bracers Ring of the Vile Staff of the Magi Stormgrip Sword of the Stampede Tokuno Dye - newer 10 charge one Wind's Edge Zyronic Claw

Map

There are 17 known locations where they spawn. Each one is marked in a red dot above.