Corundum

Unknown Owner

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For both size and quality, this is one of the very best examples of the recently found bicolored corundiums from Madagascar. I exchanged it directly from Dr. Federico Pezzotta who collected it while doing research there. It features a 3.5-cm-long doubly terminated crystal perched smartly on matrix, with an adjacent fatter crystal. These corundums are generally called sapphires on the market but to me, I cannot decide which to label them as. They go varying shades of red/purple and even to blue-purple depending on which lighting source you use to look at them. The effect is not subtle, either - its pretty obvious. These pcis were taken under both fluorescent and halogen lights to show the color change. 10.3 x 4.7 x 4.2 cm