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Some of the more interestings forms of the element that has varying effects on Kryptonians 🔓 Subscribe For $1.99 and Unlock ALL of Key Collector Comics 🎁 Utilize the eBay links provided and support the continued development of Key Collector Comics
- Debut of Green Kryptonite
- *the first classic representation of Kryptonite
- *in Action Comics #141, Lex Luthor synthesizes Kryptonite that is green in appearance but ineffective
- Debut of Blue Kryptonite, provides Bizarro with immense power to the point of combustion
- 1st team appearance of the Bizarro Family
- 1st appearance of Bizarro Supergirl
- Origin of Bizarro Jr.