Anguish Basalt (苦悩のバザルト, Kunō no Bazaruto) is a Shadow in the Persona series.
Anguish Basalt is a Shadow appearing in the 5th and 6th Chapters of the Void Quest within the Midnight Channel. It will typically be supported by a Whimsical Papillon. Upon being defeated, it may drop the Anguish Stone material. Selling 6 Anguish Stones at Daidara will unlock the Starry Robe female armor in the shop.
In Golden, it also appears in Chapter 7. It may drop Olive Stone for trade a Shiroku Pub.