NPCs composing that spawngroup :

A_Crystalline_Formation (100%)

NPCs spawning around that spawngroup :
(Max range : 200)

poeartha2180196, range=184 (-3247,720,20)

A_Crystalline_Formation (100%)

poeartha2180202, range=118 (-3442,557,46)

A_Gemmed_Protector (100%)

poeartha_48635, range=107 (-3218,566,9)

#jewel_trap (100%)

poeartha_282493, range=192 (-3338,743,11)