Used in:

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

Dropped by (***no spawn table):

• The Dreadlands
• a petrifier cockatrice (2.5%)
• a stonegazer cockatrice (2.5%)
• a petrafier cockatrice (2.5%)
• a stoneleer cockatrice (2.5%)
• The Overthere
• a stoneleer cockatrice (2.5%)
• a stoneglint cockatrice (3.5%)
• a stonegazer cockatrice (2.5%)
• a stonepeep cockatrice (2.5%)
• Trakanon's Teeth
• a stonegazer cockatrice (4.4%)
• petrifier cockatrice (4.1%)
• a stoneleer cockatrice (2.5%)
• a stonegazer cockatrice (4.4%)