Kimzeyite Garnet: Gemstone Information 

Name Kimzeyite approved by the CNMMN of the IMA (1961). Named after the kimzey family, mineral collectors of Magnet Cove, Arkansas, USA, where the mineral was found by Joe Kimzey.
Found in carbonatite at Magnet Cove, Arkansas, USA (dark brown), in shoshonite basalt at Stromboli, Italy (brown), and in lamprophyre dykes, McKellar Harbour, Ontario, Canada (pale reddish orange). Crystals up to 5 mm are found at Magnet Cove.
Kimzeyite Not reported as gem material. It has zirconium as a major component; however, zirconium has been noted as a minor constituent of titanian andradites. Isomorphic replacement exists such that the kimzeyite molecule can occur in andradite and garnets in the schorlomite–kimzey series where its presence will affect the properties of these species.
Hardness: 7
Refractive Index: 1.94
Specific Gravity: 4