The Metebelis crystals were blue sapphires from the planet Metebelis III.
A Metebelis crystal was a type of valuable crystalline substance known in the 23rd century. Commander Maria Kellogg of Starbase 12 used them in a saying: "I'll bet you Metebelis crystals to little green apples…" to indicate an almost certain outcome. (TOS novel: Ishmael) This is a reference to the Metebelis crystal of Doctor Who.
The Metebelis crystals were blue sapphires from the planet Metebelis III.
A Metebelis crystal was a type of valuable crystalline substance known in the 23rd century. Commander Maria Kellogg of Starbase 12 used them in a saying: "I'll bet you Metebelis crystals to little green apples…" to indicate an almost certain outcome. (TOS novel: Ishmael) This is a reference to the Metebelis crystal of Doctor Who.