Used in:

• Black Extract (Poison_making)
• Black Extract (Alchemy)

Dropped by (***no spawn table):

• The Dreadlands
• a petrifier cockatrice (3.6%)
• a stonegazer cockatrice (2.8%)
• a petrafier cockatrice (3.6%)
• The Overthere
• a stoneleer cockatrice (3.4%)
• a stoneglint cockatrice (3.3%)
• a stonegazer cockatrice (3.1%)
• a stonepeep cockatrice (5.3%)
• Trakanon's Teeth
• a stonegazer cockatrice (4.4%)
• petrifier cockatrice (4.1%)
• a stonegazer cockatrice (4.4%)